CybereasonAPI.psm1
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<#
.SYNOPSIS This cmdlet is used to authenticate to the Cybereason API. Once this is done a global $Session variable is created that will be used for all other cmdlets in this module. .DESCRIPTION This cmdlet creates a $Session variable that will be used with all the other cmdlets in this module to authenticate requests made to the Cybereason API. .PARAMETER Server This parameter defines the server IP address or domain name your Cybereason server is running on .PARAMETER Port This parameter is used to define the port your Cybereason server is on. This is usually 443 or 8443. The default value is 443. .PARAMETER Username This is the email address you use to sign into Cybereason .PARAMETER Passwd This is the password you use to sign into your Cybereason account. The session history gets cleared to attempt preventing the password from appearing in the session logs. This does not clear the events logs. I suggest only letting administrators view the PowerShell event logs. .EXAMPLE Connect-CybereasonAPI -Server 123.45.67.78 -Port 8443 -Username admin@cyberason.com -Passwd "Password123!" # This example authenticates to the Cybereason API and creates a $Session variable to be used by other cmdlets. This also clears the current PowerShell Session History. .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/documentation/api-documentation https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Connect-CybereasonAPI { [CmdletBinding()] param( [Parameter( Position=0, Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Enter the email you wish to sign in with `n[E] EXAMPLE: admin.user@domain.com")] # End Parameter [ValidateNotNullOrEmpty()] [String]$Username, [Parameter( Position=1, Mandatory=$True, ValueFromPipeline=$False)] # End Parameter [ValidateNotNullOrEmpty()] [String]$Passwd, [Parameter( Position=2, Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Enter the IP address or hostname of your Cybereason server as well as the port. Spearate values with a : `n[E] EXAMPLE: 10.0.0.1:443 `n[E] EXAMPLE: asdf.cybereason.com:8443")] [ValidateNotNullOrEmpty()] [String]$Server, [Parameter( Position=3, Mandatory=$False, ValueFromPipeline=$False)] # End Parameter [ValidateRange(1,65535)] [String]$Port = "443", [Parameter( Mandatory=$False)] # End Parameter [Switch][Bool]$ClearHistory ) # End param Write-Verbose "Validating username parameter is in email address format" Try { $Null = [MailAddress]$Username } # End Try Catch { Throw "[x] The username you defined is not a valid email address." } # End Catch $Uri = "https://" + $Server + ":" + $Port + "/login.html" Write-Verbose "Ensuring TLS 1.2 is being used" [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 $Body = @{ username="$Username" password="$Passwd" } # End Body Write-Verbose "Sending request to $Uri" $Results = Invoke-WebRequest -Method POST -Uri $Uri -ContentType "application/x-www-form-urlencoded" -Body $Body -SessionVariable 'Session' If ($Results.StatusCode -eq '200') { Write-Output "[*] Successfully created an authenticated session to the Cybereason API." } # End If $Global:Session = $Session $Global:Server = $Server $Global:Port = $Port If ($ClearHistory.IsPresent) { Clear-History -Verbose Write-Warning "This PowerShells session history has just been cleared to prevent the clear text password from appearing in log files. This does not clear the PowerShell Event log. Only allow administrators to view that log." } # End If Else { Write-Warning "The -ClearHistory parameter was not specified. If you wish to remove the clear text password from this session command history you will need to manually issue the command Clear-History" } # End Else } # End Function Connect-CybereasonAPI <# .SYNOPSIS This cmdlet was created to quickly and easily perform all Threat Intelligence tasks that the Cybereason API allows such as looking up a domain or IP address. .DESCRIPTION Easily and quickly communicate with the Cyberason API to discover threat intel on an IP address, domain, product, process, file extension or check for database updates avaialable in those categories. .PARAMETER Md5Hash This parameter accepts an MD5 hash of a file to check the reputation of the files signature against the Cybereason database. The -FileToHash parameter can be used if you do not already have the hash value available .PARAMETER FileToHash This parameter defines a file that you want to check against the cybereason reputation database. If you do not have the hash of the file this will automtically get the hash for you and check it's reputation .PARAMETER Domain This parameter defines a domain to check against the malicious domain database and discover info such as when the domain was first registered .PARAMETER IPAddress This parameter defines the IP address to be checked against the Cyberason malicious IP address database .PARAMETER ProductClassification This switch parameter indicates you wish to retrieve product classification information .PARAMETER ProcessClassification This switch parameter indicates you wish to retrieve process classification information .PARAMETER ProcessHierarchy This switch parameter indicates you wish to retrieve process hierarchy information .PARAMETER FileExtension This switch parameter indicates you wish to retrieve file extension information .PARAMETER PortInfo This switch parameter indicates you wish to retrieve port information .PARAMETER CollectionInfo This switch parameter indicates you wish to retrieve collection information .PARAMETER IPReputation This switch parameter indicates you wish to retrieve a list of IP address reputations .PARAMETER DomainRep This switch parameter indicates you wish to retrieve a list of domain reputations .PARAMETER DbUpdateCheck This switch parameter indicates you wish to check for database updates .EXAMPLE Get-CybereasonThreatIntel -Md5Hash 'D7AB69FAD18D4A643D84A271DFC0DBDF' # This example returns details on a file’s reputation based on the Cybereason threat intelligence service using the MD5 hash. If you do not already have the hash, use the -FileToHash parameter to have it obtained automtacilly for you. .EXAMPLE Get-CybereasonThreatIntel -Md5Hash 'D7AB69FAD18D4A643D84A271DFC0DBDF','5D997A651DA137B68B15EAC157A4FC42' # This example returns details on two file reputations based on the Cybereason threat intelligence service using the MD5 hash. If you do not already have the hash, use the -FileToHash parameter to have it obtained automtacilly for you. .EXAMPLE Get-CybereasonThreatIntel -Md5Hash (Get-FileHash -Algorithm MD5 -Path C:\Users\Public\Desktop\AlwaysInstallElevatedCheck.htm).Hash # This example gets the file hash of a file on the OS and determines if it is malicious or not .EXAMPLE Get-CybereasonThreatIntel -FileToHash C:\Windows\System32\cmd.exe # This example returns details on the file C:\Windows\System32\cmd.exe's reputation based on the Cybereason threat intelligence service. This determines the MD5 hash automatically of the file you define. If you already have the hash enter it using the -Md5Hash parameter instead of this one. .EXAMPLE Get-CybereasonThreatIntel -FileToHash 'C:\Windows\System32\cmd.exe','C:\Windows\Sysmon.exe' # This example returns details on the file C:\Windows\System32\cmd.exe and C:\WIndows\Sysmon.exe's reputation based on the Cybereason threat intelligence service. This determines the MD5 hash automatically of the file you define. If you already have the hash enter it using the -Md5Hash parameter instead of this one. .EXAMPLE Get-CybereasonThreatIntel -Domain www.cybereason.com # This example returns details on domain reputations for www.cybereason.com based on the Cybereason threat intelligence service. .EXAMPLE Get-CybereasonThreatIntel -Domain 'www.cybereason.com',cybereason.net' # This example returns details on domain reputations for www.cybereason.com and cybereason.net based on the Cybereason threat intelligence service. .EXAMPLE Get-CybereasonThreatIntel -IPAddress 1.1.1.1 # This example returns details on IP address reputations for 1.1.1.1 based on the Cybereason threat intelligence service. .EXAMPLE Get-CybereasonThreatIntel -IPAddress '1.1.1.1','208.67.222.222' # This example returns details on IP address reputations for 1.1.1.1 and 208.67.222.222 based on the Cybereason threat intelligence service. .EXAMPLE Get-CybereasonThreatIntel -ProductClassification # This example retrieves product classification information .EXAMPLE Get-CybereasonThreatIntel -ProcessClassification # This example retrieves process classification information .EXAMPLE Get-CybereasonThreatIntel -ProcessHierarchy # This example retrieves process hierarchy information .EXAMPLE Get-CybereasonThreatIntel -FileExtension # This example retrieves file extension information .EXAMPLE Get-CybereasonThreatIntel -PortInfo # This example returns information on all ports .EXAMPLE Get-CybereasonThreatIntel -CollectionInfo # This example returns information on collection information used by the Cybereason platform .EXAMPLE Get-CybereasonThreatIntel -IPReputation # This example returns a list of IP Address reputations .EXAMPLE Get-CybereasonThreatIntel -DomainReputation # This example returns a list of Domain reputations .EXAMPLE Get-CybereasonThreatIntel -DbUpdateCheck -ReputationAPI const # The -DbUpdateCheck switch parameter checks fro Cybereason sensor updates that are available for collection information .EXAMPLE Get-CybereasonThreatIntel -DbUpdateCheck -ReputationAPI domain_reputation # The -DbUpdateCheck switch parameter checks fro Cybereason sensor updates that are available for domain reputations .EXAMPLE Get-CybereasonThreatIntel -DbUpdateCheck -ReputationAPI file_extension # The -DbUpdateCheck switch parameter checks fro Cybereason sensor updates that are available for file extensions .EXAMPLE Get-CybereasonThreatIntel -DbUpdateCheck -ReputationAPI ip_reputation # The -DbUpdateCheck switch parameter checks fro Cybereason sensor updates that are available for IP Address reputations .EXAMPLE Get-CybereasonThreatIntel -DbUpdateCheck -ReputationAPI process_classification # The -DbUpdateCheck switch parameter checks fro Cybereason sensor updates that are available for process classifications .EXAMPLE Get-CybereasonThreatIntel -DbUpdateCheck -ReputationAPI process_hierarchy # The -DbUpdateCheck switch parameter checks fro Cybereason sensor updates that are available for process hierarchy information .EXAMPLE Get-CybereasonThreatIntel -DbUpdateCheck -ReputationAPI product_classification # The -DbUpdateCheck switch parameter checks fro Cybereason sensor updates that are available for product classification information .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/documentation/api-documentation https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Get-CybereasonThreatIntel { [CmdletBinding()] param( [Parameter( ParameterSetName='Md5Hash', Mandatory=$True, ValueFromPipeline=$False)] # End Parameter [Alias('Hash','MD5')] [ValidateScript({$_.Length -eq 32})] [String[]]$Md5Hash, [Parameter( ParameterSetName='FileToHash', Mandatory=$True, ValueFromPipeline=$False)] # End Parameter [Alias('Path','FilePath','f')] [ValidateScript({Test-Path -Path $_})] [String[]]$FileToHash, [Parameter( ParameterSetName='Domain', Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Define a domain to look up threat information on`n[E] EXAMPLE: www.cybereason.com")] # End Parameter [Alias('d')] [ValidateScript({$_ -Like "*.*"})] [String[]]$Domain, [Parameter( ParameterSetName='IPAddress', Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Define an IP Address to look up threat information on`n[E] EXAMPLE: 1.1.1.1")] # End Parameter [Alias('ip')] [String[]]$IPAddress, [Parameter( ParameterSetName='ProductClassification')] # End Parameter [Switch][Bool]$ProductClassification, [Parameter( ParameterSetName='ProcessClassification')] # End Parameter [Switch][Bool]$ProcessClassification, [Parameter( ParameterSetName='ProcessHierarchy')] # End Parameter [Switch][Bool]$ProcessHierarchy, [Parameter( ParameterSetName='FileExtension')] # End Parameter [Switch][Bool]$FileExtension, [Parameter( ParameterSetName='PortInfo')] # End Parameter [Switch][Bool]$PortInfo, [Parameter( ParameterSetName='CollectionInfo')] # End Parameter [Switch][Bool]$CollectionInfo, [Parameter( ParameterSetName='IPReputation')] # End Parameter [Switch][Bool]$IPReputation, [Parameter( ParameterSetName='DomainReputation')] # End Parameter [Switch][Bool]$DomainReputation, [Parameter( ParameterSetName='DbUpdateCheck')] # End Parameter [Switch][Bool]$DbUpdateCheck, [Parameter( ParameterSetName='DbUpdateCheck', Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Enter the reputaion API value to be added to the query of the API's URI. This goes here in the URI, /download_v1/<HERE>/service `n[E] EXMAPLE: process_classification")] # End Parameter [ValidateSet("ip_reputation","domain_reputation","process_classification","file_extension","process_hierarchy","process_hierarchy","product_classification","const")] [String]$ReputationAPI ) # End param $Obj = @() $Site = 'https://sage.cybereason.com/rest/' Switch ($PSBoundParameters.Keys) { 'Md5Hash' { $Uri = $Site + 'classification_v1/file_batch' ForEach ($MD in $Md5Hash) { $JsonData = '{"requestData": [{"requestKey": {"md5": "' + $MD + '"} }] }' Write-Verbose "Sending THreat Intel JSON data to Cybereason's API" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData $Results = $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty "classificationResponses" $MD5 = ($Results.requestKey.md5 | Out-String).Trim() $SHA1 = ($Results.requestKey.sha1 | Out-String).Trim() $MaliciousScore = $Results.aggregatedResult.maliciousClassification $ProductType = ($Results.aggregatedResult.productClassification.productType | Out-String).Trim() $Type = ($Results.aggregatedResult.productClassification.Type | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{md5="$MD5"; sha1="$SHA1"; MaliciousScore="$MaliciousScore"; ProductType="$ProductType"; Type="$Type"} } # End ForEach $Obj } # End Switch FileRep 'FileToHash' { $Uri = $Site + 'classification_v1/file_batch' ForEach ($FilesMD5 in $FileToHash) { $FileHash = (Get-FileHash -Algorithm MD5 -Path $FilesMD5).Hash $JsonData = '{"requestData": [{"requestKey": {"md5": "' + $FileHash + '"} }] }' Write-Verbose "Sending THreat Intel JSON data to Cybereason's API" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData $Results = $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty "classificationResponses" $MD5 = ($Results.requestKey.md5 | Out-String).Trim() $SHA1 = ($Results.requestKey.sha1 | Out-String).Trim() If ($SHA1.Length -ne 40) { $SHA1 = (Get-FileHash -Algorithm SHA1 -Path $FilesMD5).Hash} $MaliciousScore = $Results.aggregatedResult.maliciousClassification $ProductType = ($Results.aggregatedResult.productClassification.productType | Out-String).Trim() $Type = ($Results.aggregatedResult.productClassification.Type | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{md5="$MD5"; sha1="$SHA1"; MaliciousScore="$MaliciousScore"; ProductType="$ProductType"; Type="$Type"} Clear-Variable -Name FileHash,JsonData,Results,MD5,SHA1,MaliciousScore,ProductType,Type } # End ForEach $Obj } # End Switch FileRep 'IPAddress' { $Uri = $Site + 'classification_v1/ip_batch' $IPv4Regex = '(((25[0-5]|2[0-4][0-9]|[0-1]?[0-9]{1,2})\.){3}(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]{1,2}))' ForEach ($IPAddr in $IPAddress) { Write-Verbose "Chekcing $IPAddr" If ($IPAddr -Match $IPv4Regex) { $IPType = 'Ipv4' } # End If Else { $IPType = 'Ipv6' } # End Else $JsonData = '{"requestData": [{"requestKey": {"ipAddress": "' + $IPAddr + '","addressType": "' + $IPType + '"} }] }' Write-Verbose "Sending THreat Intel JSON data to Cybereason's API" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData $Results = $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty "classificationResponses" $IPA = ($Results.requestKey.ipAddress | Out-String).Trim() $AddressType = ($Results.requestKey.addressType | Out-String).Trim() $MaliciousScore = $Results.aggregatedResult.maliciousClassification $FirstSeen = Get-Date ($Results.aggregatedResult.firstSeen) $AllowFurther = ($Results.allowFurtherClassification | Out-String).Trim() $CPID = ($Results.cpId | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{IP=$IPA; Type=$AddressType; MaliciousScore=$MaliciousScore; FirstSeen=$FirstSeen; AllowFurtherClassification=$AllowFurther; CPID=$CPID} } # End ForEach $Obj } # End Switch IPBat 'Domain' { $Uri = $Site + 'classification_v1/domain_batch' ForEach ($Dom in $Domain) { Write-Verbose "Testing $Dom" $JsonData = '{"requestData": [{"requestKey": {"domain": "' + $Dom + '"} }] }' Write-Verbose "Sending THreat Intel JSON data to Cybereason's API" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData $Results = $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty "classificationResponses" $Doma = ($Results.requestKey.domain | Out-String).Trim() $Source = ($Results.aggregatedResult.maliciousClassification.source | Out-String).Trim() $MaliciousScore = $Results.aggregatedResult.maliciousClassification $FirstSeen = Get-Date -Date ($Results.aggregatedResult.firstSeen) $AllowFurther = ($Results.allowFurtherClassification | Out-String).Trim() $CPID = ($Results.cpId | Out-String).Trim() $CPType = ($Results.cpType | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{Domain=$Doma; Source=$Source; MaliciousScore=$MaliciousScore; FirstSeen=$FirstSeen; AllowFurtherClassification=$AllowFurther; CPID=$CPID; CPType=$CPType} } # End ForEach $Obj } # End Switch DomainBatch 'ProductClassification' { $Uri = $Site + 'download_v1/productClassifications' $JsonData = "{}" Write-Verbose "Sending THreat Intel JSON data to Cybereason's API" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData $Results = $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty "recordList" | ` ForEach-Object { $Name = ($_.Key.name | Out-String).Trim() $Signer = ($_.Value.signer | Out-String).Trim() $Type = ($_.Value.type | Out-String).Trim() $Title = ($_.Value.title | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{Name="$Name"; Signer=$Signer; Type=$Type; Title="$Title"} } # End For $Obj } # End Switch ProductClassification 'ProcessClassification' { $Uri = $Site + 'download_v1/process_classification' $JsonData = "{}" Write-Verbose "Sending THreat Intel JSON data to Cybereason's API" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData $Results = $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty "recordList" | ` ForEach-Object { $ProcessName = ($_.Key.name | Out-String).Trim() $Title = ($_.Value.title | Out-String).Trim() $ProductName = ($_.Value.productName | Out-String).Trim() $CompanyName = ($_.Value.companyName | Out-String).Trim() $fileDescription = ($_.Value.fileDescription | Out-String).Trim() $filePath = ($_.Value.path | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{ProcessName="$ProcessName"; Title="$Title"; ProductName=$ProductName; CompanyName=$CompanyName; FileDescription=$fileDescription; FilePath=$FilePath} } # End For $Obj } # End Switch ProcessClassification 'ProcessHierarchy' { $Uri = $Site + 'download_v1/process_hierarchy' $JsonData = "{}" Write-Verbose "Sending THreat Intel JSON data to Cybereason's API" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData $Results = $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty "recordList" | ` ForEach-Object { $Parent = ($_.Value.parent | Out-String).Trim() $ProcessName = ($_.Key.name | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{Parent="$Parent"; ProcessName="$ProcessName"} } # End For $Obj } # End Switch ProcessHierarchy 'FileExtension' { $Uri = $Site + 'download_v1/file_extension' $JsonData = "{}" Write-Verbose "Sending THreat Intel JSON data to Cybereason's API" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData $Obj = $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty "recordList" | Select-Object -ExpandProperty "Value" | Select-Object -Property Description,Type $Obj } # End Switch FileExtension 'PortInfo' { $Uri = $Site + 'download_v1/port' $JsonData = "{}" Write-Verbose "Sending THreat Intel JSON data to Cybereason's API" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData $Results = $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty "recordList" | ` ForEach-Object { $Port = ($_.Key.port | Out-String).Trim() $Protocol = ($_.Key.protocol | Out-String).Trim() $Type = ($_.Value.type | Out-String).Trim() $ShortDescription = ($_.Value.shortDescription | Out-String).Trim() $Source = ($_.Value.sources | Out-String).Trim() $LongDescr = ($_.Value.longDescription | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{Port="$Port"; Protocol="$Protocol"; Type=$Type; ShortDescription=$ShortDescription; Source=$Source; LongDescription=$LongDescr} } # End ForEach-Object $Obj } # End Switch PortInfo 'CollectionInfo' { $Uri = $Site + 'download_v1/const' $JsonData = "{}" Write-Verbose "Sending THreat Intel JSON data to Cybereason's API" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData $Results = $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty "recordList" | ` ForEach-Object { $Name = ($_.Key.name | Out-String).Trim() $Data = ($_.Value.data | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{Name="$Name"; Data="$Data"} } # End For $Obj } # End Switch CollectionInfo 'IPReputation' { $Uri = $Site + 'download_v1/ip_reputation' $JsonData = "{}" Write-Verbose "Sending THreat Intel JSON data to Cybereason's API" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData $Results = $Response.Content | ConvertFrom-Json For ($i = 0; $i -le $Results.ipReputationResponseList.Count; $i++) { $IPAddress = ($Results.ipReputationResponseList.requestkey.ipaddress[$i] | Out-String).Trim() $AddressType = ($Results.ipReputationResponseList.requestkey.addressType[$i] | Out-String).Trim() $ReputationSource = ($Results.ipReputationResponseList.aggregatedResult.reputationSource[$i] | Out-String).Trim() $ReputationScore = ($Results.ipReputationResponseList.aggregatedResult.reputationScore[$i] | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{IPAddress="$IPAddress"; AddressType="$AddressType"; ReputationSource="$ReputationSource"; ReputationScore="$ReputationScore"} } # End For $Obj } # End IPReputation Switch 'DomainReputation' { $Uri = $Site + 'download_v1/domain_reputation' $JsonData = "{}" Write-Verbose "Sending Threat Intel JSON data to Cybereason's API" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData $Results = $Response.Content | ConvertFrom-Json For ($i = 0; $i -le ($Results.domainReputationResponseList).Count; $i++) { $Domain = ($Results.domainReputationResponseList.requestkey[$i] | Out-String).Trim() $ReputationSource = ($Results.domainReputationResponseList.aggregatedResult.reputationSource[$i] | Out-String).Trim() $ReputationScore = ($Results.domainReputationResponseList.aggregatedResult.reputationScore[$i] | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{Domain="$Domain"; ReputationSource="$ReputationSource"; ReputationScore="$ReputationScore"} } # End For $Obj } #End Switch DomainReputation 'DbUpdateCheck' { $Uri = $Site + 'download_v1/' + $ReputationAPI + '/service' $JsonData = "{}" Write-Verbose "Sending THreat Intel JSON data to Cybereason's API" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData $Obj = $Response.Content | ConvertFrom-Json $Obj } # End Switch DbUpdateCheck } # End Switch } # End Function Get-CybereasonThreatIntel <# .SYNOPSIS Returns a CSV list of custom reputations for files, IP addresses, and domain names. These reputations are specific to your organization. .DESCRIPTION This cmdlet is used to download a CSV list of custom reputations for files, IP addresses, and domains that were manually set up in your environment. .PARAMETER Path This parameter defines the path and filename to save the CSV results. .EXAMPLE Get-CybereasonReputation -Path C:\Windows\Temp\CybereasonRepuations.csv # This example gets the current repuations of files, IP addresses, and domains configured in your environment and returns CSV related results. .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS System.String The CSV list is sent to the file designated in the Path parameter. .LINK https://nest.cybereason.com/documentation/api-documentation/all-versions/get-reputation#getreputations https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Get-CybereasonReputation { [CmdletBinding()] param( [Parameter( Position=1, Mandatory=$False)] # End Parameter [String]$Path ) # End param $Uri = 'https://' + $Server + ":$Port" + '/rest/classification/download' Write-Verbose "Sending request to $Uri" If ($Path.Length -gt 0) { Write-Verbose "Downloading file to $Path" Invoke-RestMethod -URI $Uri -WebSession $Session -Headers @{charset='utf-8'} -ContentType "application/json" -Method GET -OutFile "$Path" } # End If Else { Write-Verbose "Returning CSV formatted results to window" Invoke-RestMethod -URI $Uri -WebSession $Session -ContentType "application/json" -Method GET } # End Else } # End Function Get-CybereasonReputation <# .SYNOPSIS This cmdlet is used to update the custom set reputations of files, IP addresses, or domain names in an environment with Cybereason. .DESCRIPTION This cmdlet can add or remove IP addresses, domains, and file hashes to a blacklisit or whitelist to change the reputation of that item in the eyes of Cybereason. .PARAMETER Keys The file hash value (either MD5 or SHA1), IP address, or domain name for which to set a custom reputation. .PARAMETER File If you do not know the hash of a file or files you wish to modify the reputations of, you can simply enter the path to the file here and this will obtain the hash automatically for you. This can be used to replace the -Keys parameter. .PARAMETER Modify Modify the reputation of an item by adding a rule to the blacklist or whitelist .PARAMETER Action Instructs Cybereason to add or remove a reputation. Set the value to Add or Remove to modify the defined reputations. .PARAMETER PreventExecution This parameter indicates whether to prevent the file’s execution with Application Control. Note this option is applicable for the File type. If your request includes IP addresses or domain names to update, you must set this parameter to false. .EXAMPLE Set-CybereasonReputation -Keys '1.1.1.1' -Modify Whitelist -Action Add -PreventExecution False # This example sets the Cybereason repuations of IP address 1.1.1.1 by adding it to the whitelist. Because this is an IP address the -PreventExecution parameter needs to be false. This will be modified automatically in the script if set incorrectly. .EXAMPLE Set-CybereasonReputation -Keys 'maliciousdomain.com' -Modify Blacklist -Action Add -PreventExecution False # This example sets the Cybereason repuations of domain maliciousdomain.com by adding it to the blacklist. Because this is not a file hash the -PreventExecution parameter needs to be false. This will be modified automatically in the script if set incorrectly. .EXAMPLE Set-CybereasonReputation -Keys 'badguy.com','badperson.com' -Modify Blacklist -Action Add -PreventExecution False # This example sets the Cybereason repuations of domain badguy.com and badperson.com by adding them to the blacklist. Because this is not a file hash the -PreventExecution parameter needs to be false. This will be modified automatically in the script if set incorrectly. .EXAMPLE Set-CybereasonReputation -Keys 'FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF' -Modify 'Blacklist' -Action 'Add' -PreventExecution 'True' # This example sets the Cybereason repuations of a file with the defined SHA1 hash value and adds it to the blacklist. Prevent Execution is set to true which will prevent all devices in an environment from executing this file when App Control is enabled in Cybereason. .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/documentation/api-documentation/all-versions/get-reputation#getreputations https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Set-CybereasonReputation { [CmdletBinding()] param( [Parameter( ParameterSetName='Keys', Mandatory=$True, ValueFromPipeline=$False)] # End Parameter [String[]]$Keys, [Parameter( ParameterSetName='File', Mandatory=$True, ValueFromPipeline=$False)] [Alias('f','Path','FilePath')] [ValidateScript({Test-Path -Path $_})] [String[]]$File, [Parameter( Mandatory=$True, ValueFromPipeline=$False)] # End Parameter [ValidateSet('blacklist','whitelist')] [String]$Modify, [Parameter( Mandatory=$True, ValueFromPipeline=$False)] [ValidateSet('Add','Remove')] [String]$Action, [Parameter( Mandatory=$False, ValueFromPipeline=$False)] # End Parameter [Alias('Prevent')] [ValidateSet('true','false')] [String]$PreventExecution = 'false' ) # End param $Uri = "https://" + $Server + ":" + $Port + '/rest/classification/update ' Switch ($Action) { 'Add' { $Remove = 'false' } 'Remove' { $Remove = 'true' } } # End Switch If ($PSBoundParameters.Keys -eq 'File') { ForEach ($F in $File) { $Hash = (Get-FileHash -Algorithm MD5 -Path $F).Hash If ($PreventExecution -like 'true') { Write-Warning "You are about to prevent the execution of this file on all devices in your environment" $Answer = Read-Host -Prompt "Are you sure you wish to perform this action? [Y/n]" If ($Answer -like 'n') { $PreventExecution = 'false' } # End If Else { Write-Output "[*] Preventing the execution of the file with hash : $F" } # End Else } # End If $JsonData = '[{"keys": ["' + $Hash + '"],"maliciousType": "' + $Modify + '", "prevent": "' + $PreventExecution + '", "remove": "' + $Remove + '"}]' Write-Verbose "Sending request to $Uri" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData -WebSession $Session $Response.Content | ConvertFrom-Json } # End ForEach } # End Switch File Else { $IPv4Regex = '(((25[0-5]|2[0-4][0-9]|[0-1]?[0-9]{1,2})\.){3}(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]{1,2}))' ForEach ($Key in $Keys) { Write-Verbose "Ensuring the Prevent Execution value is set to false when the Key value defined is an IP address or domain name" If ((!($Key.Length -eq 32)) -or (!($Key.Length -eq 40)) -or ($Key -Match $IPv4Regex) -or ($Key -like "*.*")) { $PreventExecution = 'false' } # End If $JsonData = '[{"keys": ["' + $Key + '"],"maliciousType": "' + $Modify + '", "prevent": "' + $PreventExecution + '", "remove": "' + $Remove + '"}]' Write-Verbose "Sending request to $Uri" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData -WebSession $Session $Response.Content | ConvertFrom-Json } # End ForEach } # End Else } # End Function Set-CybereasonReputation <# .SYNOPSIS This cmdlet is used to perform remediation actions on a specific process, file, or registry key .DESCRIPTION This uses the Cybereason API to perform a remediation action on a specific file, process, or registry key. .PARAMETER MalopID The unique ID assigned by the Cybereason platform for the Malop. This ID is found when you retrieve the list of Malops. For details on getting this ID, see, Get Malops. You can perform remediation without this malop ID. .PARAMETER InitiatorUserName The Cybereason user name for the user performing the remediation. .PARAMETER MachineId The unique GUID for the machine. Note this is different from the sensor ID (pylumID) value. .PARAMETER TargetID The unique GUID for the process or file to remediate. You can find this GUID in the response when you perform an investigation query for a process. If you provide a Malop ID in the request, do not add this field in the request. Note that using the targetId parameter is supported only for processes (the KILL_PROCESS action) and files (the QUARANTINE_FILE or UNQUARANTINE_FILE action). If you use the UNQUARANTINE_FILE action, the targetId (GUID) value is different than the GUID of the original file for the QUARANTINE_FILE action. You can find this GUID for the quarantined file by running a query with the Quarantine File Element. .PARAMETER ActionType The remediation action to perform. Possible values include: KILL_PROCESS. Use this option to immediately stop the process associated with the root cause of the Malop. DELETE_REGISTRY_KEY. Use this option to remove any registry keys detected as malicious as part of the Malop. QUARANTINE_FILE. Use this option to quarantine the detected malicious file in a secure location. UNQUARANTINE_FILE. Use this option to enable the Cybereason platform to remove a file from quarantine. This option is available in version 20.1.120 and later. BLOCK_FILE. Use this to enable Application Control to block the file(s) associated with the Malop when it they are detected in the future. KILL_PREVENT_UNSUSPEND. Use this option to prevent detected ransomware from running on the machine. UNSUSPEND_PROCESS. Use this option to prevent a file associated with ransomware. ISOLATE_MACHINE: Use this option to isolate a specific machine. .EXAMPLE Invoke-RemediateItem -MalopID "11.2718161727221199870" -InitiatorUserName "admin@yourserver.com" -MachineID "-1632138521.1198775089551518743" -ActionType KILL_PROCESS # This example remediates a process by killing it after it was discovered by a Malop .EXAMPLE Invoke-RemediateItem -InitiatorUserName "admin@yourserver.com" -MachineID "-1632138521.1198775089551518743" -TargetID "-2095200899.6557717220054083334" -ActionType KILL_PROCESS # This example remediates a process that was not involved in a Malop .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS System.Object[] .LINK https://nest.cybereason.com/documentation/api-documentation/all-versions/remediate-items#remediatemalops https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Invoke-RemediateItem { [CmdletBinding()] [OutputType([System.Object[]])] param( [Parameter( ParameterSetName='MalopID', Mandatory=$True, ValueFromPipeline=$False)] # End Parameter [Alias('Malop','Id')] [String]$MalopID, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Define the Cybereason user name for the user performing the remediation`n[E] EXAMPLE: admin@cyberason.com")] # End Parameter [Alias('User','Username','Initiator')] [String]$InitiatorUserName, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Enter the unique GUID number of the machine. NOTE: This is different from the sensor ID (pylumID) value.`n[E] EXAMPLE: -1632138521.1198775089551518743")] # End Parameter [Int64]$MachineId, [Parameter( ParameterSetName='TargetID', Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The unique GUID for the process or file to remediate. You can find this GUID in the response when you perform an investigation query for a process. Note that using the targetId parameter is supported only for processes (the KILL_PROCESS action) and files (the QUARANTINE_FILE or UNQUARANTINE_FILE action). If you use the UNQUARANTINE_FILE action, the targetId (GUID) value is different than the GUID of the original file for the QUARANTINE_FILE action. You can find this GUID for the quarantined file by running a query with the Quarantine File Element.`n[E] EXAMPLE: null")] [String]$TargetID, [Parameter( Mandatory=$True, ValueFromPipeline=$False)] # End Parameter [ValidateSet('KILL_PROCESS','DELETE_REGISTRY_KEY','QUARANTINE_FILE','UNQUARANTINE_FILE','BLOCK_FILE','KILL_PREVENT_UNSUSPEND','UNSUSPEND_PROCESS','ISOLATE_MACHINE')] [String]$ActionType ) # End param $Obj = @() Write-Verbose "Validating -InitiatorUserName parameter is in email address format" Try { $Null = [MailAddress]$InitiatorUserName } # End Try Catch { Throw "[x] The username you defined, $InitiatorUserName, is not a valid email address." } # End Catch $Uri = "https://" + $Server + ":" + $Port + "/rest/remediate" Switch ($PSBoundParameters.Keys) { 'MalopID' { $JsonData = '{"malopId":' + $MalopID + ',"initiatorUserName":' + $InitiatorUserName + ',"actionsByMachine":{' + $MachineId + ':[{"actionType":' + $ActionType + '}]}}' } # End Switch MalopID 'TargetID' { $JsonData = '{"initiatorUserName":' + $InitiatorUserName + ',"actionsByMachine":{' + $MachineId + ':[{"targetId":' + $TargetID + ',"actionType":' + $ActionType + '}]}}' } # End Switch TargetID } # End Switch Write-Verbose "Sending request to $Uri" $Response = Invoke-WebRequest -Uri $Uri -Method POST -ContentType "application/json" -Body $JsonData -WebSession $Session $Response.Content | ConvertFrom-Json | ` ForEach-Object { $MalopId = ($_.malopId | Out-String).Trim() $RemediationId = ($_.remediationId | Out-String).Trim() $Start = Get-Date -Date ($_.start) $End = Get-Date ($_.end) $InitiatingUser = ($_.initiatingUser | Out-String).Trim() $MachineId = ($_.statusLog.machineID | Out-String).Trim() $TargetId = ($_.statusLog.targetId | Out-String).Trim() $Status = ($_.statusLog.status | Out-String).Trim() $ActionType = ($_.statusLog.actionType | Out-String).Trim() $ErrorMessage = $_.statusLog.error $TimeStamp = Get-Date -Date ($_.statusLog.timestamp) $Obj += New-Object -TypeName PSObject -Property @{malopId=$MalopId; remediationId=$RemediationId; Start=$Start; End=$End; initiatingUser=$InitiatingUser; MachineId=$MachineId; TargetId=$TargetId; Status=$Status; ActionType=$ActionType; TimeStamp=$TimeStamp; Error=$ErrorMessage} } # End ForEach-Object $Obj } # End Function Invoke-CybereasonRemediateItem <# .SYNOPSIS This cmdlet is used too return details on the progress of a specific remediation operation. .DESCRIPTION Returns details on the progress of a specific remediation operation. .PARAMETER Username The Cybereason user name of the user performing the remediation operation. .PARAMETER MalopID The unique Malop ID for the Malop for which you are performing remediation. .PARAMETER RemediationID This parameter defines the Cybereason remediation Id to check the progress of. The remediation ID returned in a previous remediation request. For details on finding this remediation ID, see https://nest.cybereason.com/api-documentation/all-versions/APIReference/RemediationAPI/remediateMalop.html#remediate-items. .EXAMPLE Get-CybereasonRemediationProgress -Username 'admin@cyberason.com' -MalopID '11.2718161727221199870' -RemediationID '86f3faa1-bac0-4a17-9192-9d106b734664' # This example gets the current status on a Malop that was remediated by the user admin@cyberason.com .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/documentation/api-documentation/all-versions/check-remediation-progress https://nest.cybereason.com/api-documentation/all-versions/APIReference/RemediationAPI/remediateMalop.html#remediate-items https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Get-CybereasonRemediationProgress { [CmdletBinding()] param( [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Enter the username you are querying to view the status of their Malops request `n[E] EXAMPLE: admin@cybereason.com")] # End Parameter [String]$Username, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Enter the Malops ID you are querying to view the progress of in this query `n[E] EXAMPLE: 11.2718161727221199870")] # End Parameter [String]$MalopID, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Enter the Remediation ID you are querying to view the progress of the request `n[E] EXAMPLE: 86f3faa1-bac0-4a17-9192-9d106b734664")] # End Parameter [String]$RemediationID ) # End param $Obj = @() Write-Verbose "Validating -InitiatorUserName parameter is in email address format" Try { $Null = [MailAddress]$InitiatorUserName } # End Try Catch { Throw "[x] The username you defined, $InitiatorUserName, is not a valid email address." } # End Catch $Uri = "https://" + $Server + ":" + $Port + "/rest/remediate/progress/" + $Username + "/" + $MalopID + "/" + $RemediationID $Response = Invoke-WebRequest -Method GET -ContentType 'application/json' -Uri $Uri -WebSession $Session $Response.Content | ConvertFrom-Json | ` ForEach-Object { $MalopId = ($_.malopId | Out-String).Trim() $RemediationId = ($_.remediationId | Out-String).Trim() $Start = Get-Date -Date ($_.start) $End = Get-Date ($_.end) $InitiatingUser = ($_.initiatingUser | Out-String).Trim() $MachineId = ($_.statusLog.machineID | Out-String).Trim() $TargetId = ($_.statusLog.targetId | Out-String).Trim() $Status = ($_.statusLog.status | Out-String).Trim() $ActionType = ($_.statusLog.actionType | Out-String).Trim() $ErrorMessage = $_.statusLog.error $TimeStamp = Get-Date -Date ($_.statusLog.timestamp) $Obj += New-Object -TypeName PSObject -Property @{malopId=$MalopId; remediationId=$RemediationId; Start=$Start; End=$End; initiatingUser=$InitiatingUser; MachineId=$MachineId; TargetId=$TargetId; Status=$Status; ActionType=$ActionType; TimeStamp=$TimeStamp; Error=$ErrorMessage} } # End ForEach-Object $Obj } # End Function Get-CybereasonRemediationProgress <# .SYNOPSIS This cmdlet aborts a remediation operation on a specific Malop. .DESCRIPTION This aborts a remediation operation for the Malop and Remediation ID you define .PARAMETER MalopID The unique Malop ID for the Malop for which you are performing remediation. .PARAMETER RemediationID This parameter defines the Cybereason remediation Id to check the progress of. The remediation ID returned in a previous remediation request. For details on finding this remediation ID, see https://nest.cybereason.com/api-documentation/all-versions/APIReference/RemediationAPI/remediateMalop.html#remediate-items. .EXAMPLE Stop-CybereasonMalopRemediation -MalopID '11.2718161727221199870' -RemediationID '86f3faa1-bac0-4a17-9192-9d106b734664' # This example aborts the remediation action take on the defined Malop .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/documentation/api-documentation/all-versions/abort-malop-remediation https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Stop-CybereasonMalopRemediation { [CmdletBinding()] param( [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Enter the Malops ID you are querying to view the progress of in this query `n[E] EXAMPLE: 11.2718161727221199870")] # End Parameter [String]$MalopID, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Enter the Remediation ID you are querying to view the progress of the request `n[E] EXAMPLE: 86f3faa1-bac0-4a17-9192-9d106b734664")] # End Parameter [String]$RemediationID ) # End parm $Uri = "https://" + $Server + ":" + $Port + "/rest/remediate/abort/" + $MalopID + "/" + $RemediationID $Response = Invoke-WebRequest -Method POST -ContentType 'application/json' -Uri $Uri -WebSession $Session $Response.Content | ConvertFrom-Json | ` ForEach-Object { $MalopId = ($_.malopId | Out-String).Trim() $RemediationId = ($_.remediationId | Out-String).Trim() $Start = Get-Date -Date ($_.start) $End = Get-Date ($_.end) $InitiatingUser = ($_.initiatingUser | Out-String).Trim() $MachineId = ($_.statusLog.machineID | Out-String).Trim() $TargetId = ($_.statusLog.targetId | Out-String).Trim() $Status = ($_.statusLog.status | Out-String).Trim() $ActionType = ($_.statusLog.actionType | Out-String).Trim() $ErrorMessage = $_.statusLog.error $TimeStamp = Get-Date -Date ($_.statusLog.timestamp) $Obj += New-Object -TypeName PSObject -Property @{malopId=$MalopId; remediationId=$RemediationId; Start=$Start; End=$End; initiatingUser=$InitiatingUser; MachineId=$MachineId; TargetId=$TargetId; Status=$Status; ActionType=$ActionType; TimeStamp=$TimeStamp; Error=$ErrorMessage} } # End ForEach-Object $Obj } # End Function Stop-CybereasonMalopRemediation <# .SYNOPSIS This cmdlet retrieves details about remediation actions performed on a particular Malop. .DESCRIPTION This retrieves details about remediation actions performed on a particular Malop you define .PARAMETER MalopID The unique Malop ID for the Malop for which you are performing remediation. .EXAMPLE Get-CybereasonRemediationStatus -MalopID '11.2718161727221199870' # This example gets the current status for the defined Malop .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/documentation/api-documentation/all-versions/get-remediation-statuses https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Get-CybereasonRemediationStatus { [CmdletBinding()] param( [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Enter the Malops ID you are querying to view the progress of in this query `n[E] EXAMPLE: 11.2718161727221199870")] # End Parameter [String]$MalopID ) # End param $Uri = "https://" + $Server + ":" + $Port + "/rest/remediate/status/" + $MalopID $Response = Invoke-WebRequest -Method GET -ContentType 'application/json' -Uri $Uri -WebSession $Session $Response.Content | ConvertFrom-Json | ` ForEach-Object { $MalopId = ($_.malopId | Out-String).Trim() $RemediationId = ($_.remediationId | Out-String).Trim() $Start = Get-Date -Date ($_.start) $End = Get-Date ($_.end) $InitiatingUser = ($_.initiatingUser | Out-String).Trim() $MachineId = ($_.statusLog.machineID | Out-String).Trim() $TargetId = ($_.statusLog.targetId | Out-String).Trim() $Status = ($_.statusLog.status | Out-String).Trim() $ActionType = ($_.statusLog.actionType | Out-String).Trim() $ErrorMessage = $_.statusLog.error $TimeStamp = Get-Date -Date ($_.statusLog.timestamp) $Obj += New-Object -TypeName PSObject -Property @{malopId=$MalopId; remediationId=$RemediationId; Start=$Start; End=$End; initiatingUser=$InitiatingUser; MachineId=$MachineId; TargetId=$TargetId; Status=$Status; ActionType=$ActionType; TimeStamp=$TimeStamp; Error=$ErrorMessage} } # End ForEach-Object $Obj } # End Function Get-CybereasonRemediationStatus <# .SYNOPSIS This cmdlet retrieves a list of all rules for isolating specific machines. .DESCRIPTION Retrieves a list of all rules for isolating specific machines. .EXAMPLE Get-CybereasonIsolationRule # This example retrieves a list of all rules for isolating specific machines .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/api-documentation/all-versions/APIReference/IsolationAPI/retrieveRules.html#getisolationrules https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Get-CybereasonIsolationRule { [CmdletBinding()] param() $Obj = @() $Uri = "https://" + $Server + ":" + $Port + "/rest/settings/isolation-rule" $Response = Invoke-WebRequest -Method GET -ContentType 'application/json' -Uri $Uri -WebSession $Session If ($Response.StatusCode -eq 200) { $Response.Content | ConvertFrom-Json | ` ForEach-Object { $RuleId = ($_.ruleId | Out-String).Trim() $IpAddress = ($_.ipAddress | Out-String).Trim() $IpAddressString = ($_.ipAddressString | Out-String).Trim() $Domain = ($_.domain | Out-String).Trim() $PortNumber = ($_.port | Out-String).Trim() $Direction = ($_.direction | Out-String).Trim() $LastUpdated = Get-Date -Date ($_.lastUpdated) $Blocking = ($_.blocking | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{RuleId=$RuleId; IPAddress=$IpAddress; IPAddressString=$ipAddressString; Domain=$Domain; Port=$PortNumber; Direction=$Direction; LastUpdated=$LastUpdated; Blocking=$Blocking} } # End ForEach-Object $Obj } Else { Write-Output "[*] No isolation rules were found or access was denied. Try authenticating with a non-api user if you believe you should have this access." $Response } # End Catch } # End Function Get-CybereasonIsolationRule <# .SYNOPSIS This cmdlet is used to create an isolation exception rule. .DESCRIPTION Creates an isolation exception rule. .PARAMETER IPAddressString The IP address of the machine to which the rule applies. .PARAMETER PortNumber Optional if the ipAddressString parameter exists. The port by which Cybereason communicates with an isolated machine, according to the rule. .PARAMETER Blocking States whether communication with the given IP or port is allowed. Set to true if communication is blocked. .PARAMETER Direction The direction of the allowed communication. Values include ALL, INCOMING, or OUTGOING. .EXAMPLE New-CybereasonIsolationRule -IPAddressString '123.45.67.89' -PortNumber 8443 -Blocking -Direction ALL # This example creates a new isolation rule that blocks All communication to 123.45.67.89 .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/api-documentation/all-versions/APIReference/IsolationAPI/createRule.html#createisolationrule https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function New-CybereasonIsolationRule { [CmdletBinding()] param( [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Enter the IP Address of the machine for which the rule should apply.`n[E] EXAMPLE: 123.45.67.89")] # End Parameter [String[]]$IpAddressString, [Parameter( Mandatory=$False, ValueFromPipeline=$False)] # End Parameter [ValidateRange(1,65535)] [Int16]$PortNumber, [Parameter( Mandatory=$False, ValueFromPipeline=$False)] [Switch][Bool]$Blocking, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Define the direction the rule should be applied too.`n[E] EXAMPLE: INCOMING")] # End Parameter [ValidateSet('ALL','INCOMING','OUTGOING')] [String]$Direction ) # End param $Obj = @() If ($Blocking.IsPresent) { $Block = 'true' } # End If Else { $Block = 'false' } # End If If ($IpAddressString.Length -gt 0) { $StringOne = '"ipAddressString":"' + $IpAddressString + '"' } # End If If ($PortNumber.Length -gt 0) { $StringTwo = ',"port":' + $PortNumber } # End If $Uri = "https://" + $Server + ":" + $Port + "/rest/settings/isolation-rule" $JsonData = '{' + $StringOne + $StringTwo + ',"blocking":"' + $Block + '","direction":"' + $Direction + '"}' $Response = Invoke-WebRequest -Method POST -ContentType 'application/json' -Uri $Uri -WebSession $Session -Body $JsonData $Response.Content | ConvertFrom-Json | ` ForEach-Object { $RuleId = ($_.ruleId | Out-String).Trim() $IpAddress = ($_.ipAddress | Out-String).Trim() $IpAddressString = ($_.ipAddressString | Out-String).Trim() $Domain = ($_.domain | Out-String).Trim() $PortNumber = ($_.port | Out-String).Trim() $Direction = ($_.direction | Out-String).Trim() $LastUpdated = Get-Date -Date ($_.lastUpdated) $Blocking = ($_.blocking | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{RuleId=$RuleId; IPAddress=$IpAddress; IPAddressString=$ipAddressString; Domain=$Domain; Port=$PortNumber; Direction=$Direction; LastUpdated=$LastUpdated; Blocking=$Blocking} } # End ForEach-Object $Obj } # End Function New-CybereasonIsolationRule <# .SYNOPSIS This cmdlet is used to updates an isolation exception rule. .DESCRIPTION Updates an isolation exception rule. .PARAMETER RuleID A unique identifier for the rule .PARAMETER IPAddressString The IP address of the machine to which the rule applies. .PARAMETER PortNumber Optional if the ipAddressString parameter exists. The port by which Cybereason communicates with an isolated machine, according to the rule. .PARAMETER Blocking States whether communication with the given IP or port is allowed. Set to true if communication is blocked. .PARAMETER Direction The direction of the allowed communication. Values include ALL, INCOMING, or OUTGOING. .EXAMPLE Set-CybereasonIsolationRule -RuleID "5a7b2e95e4b082f2e909a4f3" -IPAddressString '123.45.67.89' -PortNumber 8443 -Blocking -Direction ALL # This example creates a new isolation rule that blocks All communication to 123.45.67.89 .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/api-documentation/all-versions/APIReference/IsolationAPI/updateRule.html#updateisolationrule https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Set-CybereasonIsolationRule { [CmdletBinding()] param( [Parameter( Mandatory=$True, ValueFromPipeline=$False)] # End Parameter [String]$RuleID, [Parameter( Mandatory=$False, ValueFromPipeline=$False, HelpMessage="`n[H] Enter the IP Address of the machine for which the rule should apply.`n[E] EXAMPLE: 123.45.67.89")] # End Parameter [String]$IpAddressString, [Parameter( Mandatory=$False, ValueFromPipeline=$False)] # End Parameter [ValidateRange(1,65535)] [Int16]$PortNumber, [Parameter( Mandatory=$False, ValueFromPipeline=$False)] [Switch][Bool]$Blocking, [Parameter( Mandatory=$False, ValueFromPipeline=$False, HelpMessage="`n[H] Define the direction the rule should be applied too.`n[E] EXAMPLE: INCOMING")] # End Parameter [ValidateSet('ALL','INCOMING','OUTGOING')] [String]$Direction, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Using the Tick format, define the last update value to specifiy the rule you wish to modify the info on `n[E] EXAMPLE: 1525594605852")] # End Parameter [String]$LastUpdated ) # End param $Obj = @() If ($Blocking.IsPresent) { $Block = 'true' $StringThree = ',"blocking":"' + $Block + '"' } # End If Else { $Block = 'false' $StringThree = ',"blocking":"' + $Block + '"' } # End If $Uri = "https://" + $Server + ":" + $Port + "/rest/settings/isolation-rule" If ($IpAddressString.Length -gt 0) { $StringOne = ',"ipAddressString":"' + $IpAddressString + '"' } # End If If ($PortNumber.Length -gt 0) { $StringTwo = ',"port":' + $PortNumber } # End If If ($Direction.Length -gt 0) { $StringFour = ',"direction":"' + $Direction + '"' } # End If If ($LastUpdated.Length -gt 0) { $StringFive = ',"lastUpdated":' + $LasUpdated } # End If $JsonData = '{"ruleId":"' + $RuleID + '"' + $StringOne + $StringTwo + $StringThree + $StringFour + $StringFive + '}' $Response = Invoke-WebRequest -Method PUT -ContentType 'application/json' -Uri $Uri -WebSession $Session -Body $JsonData $Response.Content | ConvertFrom-Json | ` ForEach-Object { $RuleId = ($_.ruleId | Out-String).Trim() $IpAddress = ($_.ipAddress | Out-String).Trim() $IpAddressString = ($_.ipAddressString | Out-String).Trim() $Domain = ($_.domain | Out-String).Trim() $PortNumber = ($_.port | Out-String).Trim() $Direction = ($_.direction | Out-String).Trim() $LastUpdated = Get-Date -Date ($_.lastUpdated) $Blocking = ($_.blocking | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{RuleId=$RuleId; IPAddress=$IpAddress; IPAddressString=$ipAddressString; Domain=$Domain; Port=$PortNumber; Direction=$Direction; LastUpdated=$LastUpdated; Blocking=$Blocking} } # End ForEach-Object $Obj } # End Function Set-CybereasonIsolationRule <# .SYNOPSIS This cmdlet is used too delete an isolation exception rule. .DESCRIPTION Deletes an isolation exception rule. .PARAMETER RuleID A unique identifier for the rule .PARAMETER IPAddressString The IP address of the machine to which the rule applies. .PARAMETER PortNumber Optional if the ipAddressString parameter exists. The port by which Cybereason communicates with an isolated machine, according to the rule. .PARAMETER Blocking States whether communication with the given IP or port is allowed. Set to true if communication is blocked. .PARAMETER Direction The direction of the allowed communication. Values include ALL, INCOMING, or OUTGOING. .PARAMETER LastUpdate The epoch timestamp for the last update time for the rule. .EXAMPLE Remove-CybereasonIsolationRule -RuleID '5859b3d0ae8eeb920e9d2f4e' -IPAddressString '1.1.1.1' -PortNumber 8443 -Direction ALL -LastUpdated 1525594605852 # This example deletes the isolation rule that is blocking all traffic to 1.1.1.1 .EXAMPLE Remove-CybereasonIsolationRule -RuleID '5859b3d0ae8eeb920e9d2f4e' -IPAddressString '10.10.10.10' -PortNumber 8443 -Blocking -Direction OUTGOING -LastUpdated 1525594605852 # This example deletes the rule ID that has IP address 10.10.10.10 outbound traffic blocked .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/api-documentation/all-versions/APIReference/IsolationAPI/deleteRule.html#deleteisolationrule https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Remove-CybereasonIsolationRule { [CmdletBinding()] param( [Parameter( Mandatory=$True, ValueFromPipeline=$False)] # End Parameter [String]$RuleID, [Parameter( Mandatory=$False, ValueFromPipeline=$False, HelpMessage="`n[H] Enter the IP Address of the machine in the rule to delete.`n[E] EXAMPLE: 123.45.67.89")] # End Parameter [String]$IpAddressString, [Parameter( Mandatory=$False, ValueFromPipeline=$False)] # End Parameter [ValidateRange(1,65535)] [Int16]$PortNumber, [Parameter( Mandatory=$False, ValueFromPipeline=$False)] [Switch][Bool]$Blocking, [Parameter( Mandatory=$False, ValueFromPipeline=$False, HelpMessage="`n[H] Define the direction the rule should be applied too.`n[E] EXAMPLE: INCOMING")] # End Parameter [ValidateSet('ALL','INCOMING','OUTGOING')] [String]$Direction, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Using the Tick format, define the last update value to specifiy the rule you wish to modify the info on `n[E] EXAMPLE: 1525594605852")] # End Parameter [String]$LastUpdated) $Uri = "https://" + $Server + ":" + $Port + "/rest/settings/isolation-rule/delete" If ($Blocking.IsPresent) { $Block = 'true' $StringThree = ',"blocking":"' + $Block + '"' } # End If Else { $Block = 'false' $StringThree = ',"blocking":"' + $Block + '"' } # End If If ($IpAddressString.Length -gt 0) { $StringOne = ',"ipAddressString":"' + $IpAddressString + '"' } # End If If ($PortNumber.Length -gt 0) { $StringTwo = ',"port":' + $PortNumber } # End If If ($Direction.Length -gt 0) { $StringFour = ',"direction":"' + $Direction + '"' } # End If If ($LastUpdated.Length -gt 0) { $StringFive = ',"lastUpdated":' + $LasUpdated } # End If $JsonData = '{"ruleId":' + $RuleID + $StringOne + $StringTwo + $StringThree + $StringFour + $StringFive + '}' $Response = Invoke-WebRequest -Method POST -ContentType 'application/json' -Uri $Uri -WebSession $Session -Body $JsonData $Response.Content | ConvertFrom-Json } # End Function Remove-CybereasonIsolationRule <# .SYNOPSIS This cmdlet returns a count of each type of malware. .DESCRIPTION Returns a count of each type of malware. When sending this request, there may be a delay in returning a response, depending on how much data and activity is in your system. Ensure you do not send this request multiple times while waiting for response as this may cause unexpected results and performance issues in your environment. If you want to return fewer types of malware, you can remove the necessary filters object from the template above. In addition, if you are trying to retrieve types of malware other than the Needs Attention type, you must add multiple objects in the filters object as seen above. .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/documentation/api-documentation/all-versions/get-malware-counts#getmalwarecounts https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Get-CybereasonMalwareCount { [CmdletBinding()] param() # End param $Uri = 'https://' + $Server + ':' + $Port + '/rest/malware/counts' $JsonData = '{"compoundQueryFilters":[{"filters":[{"fieldName":"needsAttention","operator":"Is","values":[true]}],"filterName":"needsAttention"},{"filters":[{"fieldName":"type","operator":"Equals","values":["KnownMalware"]},{"fieldName":"needsAttention","operator":"Is","values":[false]}],"filterName":"KnownMalware"},{"filters":[{"fieldName":"type","operator":"Equals","values":["UnknownMalware"]},{"fieldName":"needsAttention","operator":"Is","values":[false]}],"filterName":"UnknownMalware"},{"filters":[{"fieldName":"type","operator":"Equals","values":["FilelessMalware"]},{"fieldName":"needsAttention","operator":"Is","values":[false]}],"filterName":"FilelessMalware"},{"filters":[{"fieldName":"type","operator":"Equals","values":["ApplicationControlMalware"]}],"filterName":"ApplicationControlMalware"}]}' Write-Verbose "Sending query to $Uri" $Response = Invoke-WebRequest -Method POST -ContentType 'application/json' -Uri $Uri -WebSession $Session -Body $JsonData $Results = $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty data | Select-Object -ExpandProperty malwareCountFilters $TotalCount = ($Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty data).TotalCount $Results += New-Object -TypeName PSObject -Property @{Filter='Total'; Count=$TotalCount} $Results } # End Function Get-CybereasonMalwareCount <# .SYNOPSIS This cmdlet is supported from Cybereason version 17.5 and later. Returns details on malware currently in your environment. .DESCRIPTION Returns details on malware currently in your environment. .PARAMETER MalwareType This parameter defines the type of malware you wish to return results on .PARAMETER NeedsAttention This switch parameter indicates you wish to return results on all malware that needs attention .PARAMETER All This switch parameter indicates you wish to return information on all results of the malware type you define .PARAMETER MalwareAfter This indicates a timestamp in the form of ticks from which to start a search on malware. This will return info on any malware that occured before the date you define .PARAMETER MalwareBefore This indicates a timestamp in the form of ticks from which to start a search on malware. This will return info on any malware that occured after the date you define .PARAMETER Limit This parameter defines the amount of results to return. The default value is 25 .PARAMETER Sort This parameter defines whether to sort the results in Ascending or Descending order. The default value is descending .PARAMETER Offset This parameter defines the malware page to start your search from. 0 is the default value which starts your search from the beginning .PARAMETER CompletedKnownMalware This switch parameter returns all known malware with a status of done .EXAMPLE Get-CybereasonMalwareType -MalwareType KnownMalware -NeedsAttention -Limit 1 -Sort ASC # This example returns 1 result on all malware that needs attention in ascending order of their occurences .EXAMPLE Get-CybereasonMalwareType -MalwareType KnownMalware -All -Limit 25 -Sort DESC -Offset 0 # This example returns up to 25 results on all known malware in descending order .EXAMPLE Get-CybereasonMalwareType -MalwareAfter (Get-Date).AddDays(-2).Ticks # This example returns info on all known malware that occured after a defined date .EXAMPLE Get-CybereasonMalwareType -MalwareBefore (Get-Date).AddDays(-2).Ticks # This example returns info on all known malware that occured before a defined date .EXAMPLE Get-CybereasonMalwareType -MalwareType KnownMalware -Status Done -Limit 25 -Sort DESC -Offset 0 # This example returns info on all known malware with a status of done .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/documentation/api-documentation/all-versions/query-malware-types https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Get-CybereasonMalwareType { [CmdletBinding(DefaultParameterSetName='All')] param( [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Define one of the types of Malware you want to query the results of.`n[E] EXAMPLE: RansomwareMalware")] # End Parameter [ValidateSet('KnownMalware','UnknownMalware','FilelessMalware','ApplicationControlMalware','RansomwareMalware')] [String]$MalwareType, [Parameter( ParameterSetName='Status', Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] `n[E] EXAMPLE: Done")] # End Parameter [ValidateSet('Done','Excluded','Detected','Prevented','Remediated','DeleteOnRestart','Quarantined')] [String]$Status, [Parameter( ParameterSetName='MalwareAfter')] # End Parameter [Parameter( ParameterSetName='MalwareBefore')] # End Parameter [Parameter( ParameterSetName='Status')] # End Parameter [Parameter( ParameterSetName='NeedsAttention')] # End Parameter [Switch][Bool]$NeedsAttention, [Parameter( ParameterSetName='All')] # End Parameter [Switch][Bool]$All, [Parameter( ParameterSetName='MalwareAfter', Position=0, Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Use a timestamp in the form of ticks to discover malware that occured after a certain date and time`n[E] EXAMPLE: 637381353373709085")] # End Parameter [Int64]$MalwareAfter, [Parameter( ParameterSetName='MalwareBefore', Position=0, Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Use a timestamp in the form of ticks to discover malware that occured before a certain date and time`n[E] EXAMPLE: 637381353373709085")] # End Parameter [Int64]$MalwareBefore, [Parameter( Mandatory=$False, ValueFromPipeline=$False)] # End Parameter [Int32]$Limit = 25, [Parameter( Mandatory=$False, ValueFromPipeline=$False)] # End Parameter [ValidateSet('ASC','DESC')] [String]$Sort = 'DESC', [Parameter( Mandatory=$False, ValueFromPipeline=$False)] # End Parameter [Int32]$Offset = 0 ) # End param $Uri = 'https://' + $Server + ':' + $Port + '/rest/malware/query' Switch ($PSBoundParameters.Keys) { 'NeedsAttention' { $JsonData = '{"filters": [{"fieldName":"type","operator":"Equals","values":["' + $MalwareType + '"]}],"sortingFieldName":"timestamp","sortDirection":"' + $Sort + '","limit":' + $Limit + ',"offset":' + $Offset + '})' } # End Switch Needs Attention 'All' { $JsonData = '{"filters":[{"fieldName":"type","operator":"Equals","values":["' + $MalwareType + '"]},{"fieldName":"needsAttention","operator":"Is","values":[' + $NeedsAttentionBool + ']}],"sortingFieldName":"timestamp","sortDirection":"' + $Sort + '","limit":' + $Limit + ',"offset":' + $Offset + '})' } # End Switch AllKnownMalware 'MalwareAfter' { $NeedsAttentionBool = 'false' If ($NeedsAttention.IsPresent) { $NeedsAttentionBool = 'true' } # End If $JsonData = '{"filters":[{"fieldName":"type","operator": "Equals","values":["' + $MalwareType + '"]},{"fieldName":"needsAttention","operator":"Is","values":[' + $NeedsAttentionBool + ']},{"fieldName":"timestamp","operator":"GreaterOrEqualsTo","values":["timestamp"]}],"sortingFieldName":"timestamp","sortDirection":"' + $Sort + '","limit":' + $Limit + ',"offset":' + $Offset + '})' } # End Switch KnownMalwareFromTime 'MalwareBefore' { $NeedsAttentionBool = 'false' If ($NeedsAttention.IsPresent) { $NeedsAttentionBool = 'true' } # End If $JsonData = '{"filters":[{"fieldName":"type","operator": "Equals","values":["' + $MalwareType + '"]},{"fieldName":"needsAttention","operator":"Is","values":[' + $NeedsAttentionBool + ']},{"fieldName":"timestamp","operator":"LessOrEqualsTo","values":["timestamp"]}],"sortingFieldName":"timestamp","sortDirection":"' + $Sort + '","limit":' + $Limit + ',"offset":' + $Offset + '})' } # End Switch KnownMalwareFromTime 'Status' { $NeedsAttentionBool = 'false' If ($NeedsAttention.IsPresent) { $NeedsAttentionBool = 'true' } # End If $JsonData = '{"filters":[{"fieldName":"type","operator":"Equals","values":["' + $MalwareType + '"]},{"fieldName":"needsAttention","operator":"Is","values":[' + $NeedsAttentionBool + ']},{"fieldName":"status","operator":"Equals","values":["' + $Status + '"]}],"sortingFieldName":"timestamp","sortDirection":"' + $Sort + '","limit":' + $Limit + ',"offset":' + $Offset + '})' } # End Switch CompletedKnownMalware } # End Switch Write-Verbose "Sending query to $Uri" $Response = Invoke-WebRequest -Method POST -ContentType 'application/json' -Uri $Uri -WebSession $Session -Body $JsonData $Results = $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty data If ($Results.totalResults -eq 0) { Write-Output "[*] There were not any results returned" $Results } # End If Else { $Results.malwares } # End Else If ($Results.hasMoreResults -like 'True') { Write-Output "[*] More results were found but not all were returned. Raise the -Limit parameters value if you wish to view more" } # End If } # End Function Get-CybereasonMalwareType <# .SYNOPSIS This cmdlet is used to retrieve a list of custom detection rules .DESCRIPTION Retrieve a list of custom detection rules .PARAMETER ActiveRules This switch parameter returns a list of all custom rules currently active in your environment. .PARAMETER DisabledRules This switch parameter returns a list of all custom rules currently disabled in your environment. .PARAMETER RootCauses Returns a list of all Elements you can use for a root cause for a Malop generated from this custom rule. .PARAMETER DetectionTypes Returns a list of all available detection types you can use for the custom detection rule. .PARAMETER ActivityTypes Returns a list of all available Malop activity types you can use for the custom detection rule. .PARAMETER RuleID Define the rule ID value you wish to view the modificaiton history on .PARAMETER ModificationHistory Returns details on modifications made to a custom rule. .EXAMPLE Get-CybereasonCustomDetectionRule -ActiveRules # This eample returns a list of all custom rules currently active in your environment. .EXAMPLE Get-CybereasonCustomDetectionRule -DisabledRules # This eample returns a list of all custom rules currently disabled in your environment. .EXAMPLE Get-CybereasonCustomDetectionRule -RootCauses # This eample returns a list of all Elements you can use for a root cause for a Malop generated from this custom rule. .EXAMPLE Get-CybereasonCustomDetectionRule -DetectionTypes # This eample returns a list of all available detection types you can use for the custom detection rule. .EXAMPLE Get-CybereasonCustomDetectionRule -ActivityTypes # This eample returns a list of all available Malop activity types you can use for the custom detection rule. .EXAMPLE Get-CybereasonCustomDetectionRule -RuleID 1582038865368 -ModificationHistory # This eample returns details on modifications made to a custom rule. .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/documentation/api-documentation/all-versions/add-custom-detection-rules https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Get-CybereasonCustomDetectionRule { [CmdletBinding(DefaultParameterSetName='Active')] param( [Parameter( ParameterSetName='Active')] # End Parameter [Switch][Bool]$Active, [Parameter( ParameterSetName='Disabled')] # End Parameter [Switch][Bool]$Disabled, [Parameter( ParameterSetName='RootCauses')] # End Parameter [Switch][Bool]$RootCauses, [Parameter( ParameterSetName='DetectionTypes')] # End Parameter [Switch][Bool]$DetectionTypes, [Parameter( ParameterSetName='ActivityTypes')] # End Parameter [Switch][Bool]$ActivityTypes, [Parameter( ParameterSetName='ModificationHistory', Position=0, Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] Define the Rule ID you want to view modification history on `n[E] EXAMPLE: 1582038865368")] # End Parameter [Int64]$RuleID, [Parameter( ParameterSetName='ModificationHistory' )] # End Parameter [Switch][Bool]$ModificationHistory ) # End param $Obj = @() Switch ($PSBoundParameters.Keys) { 'Active' { $Uri = 'https://' + $Server + ':' + $Port + '/rest/customRules/decisionFeature/live' Write-Verbose "Sending query to $Uri" $Response = Invoke-WebRequest -Method GET -ContentType 'application/json' -Uri $Uri -WebSession $Session $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty rules | ` ForEach-Object { $id = ($_.id | Out-String).Trim() $Name = ($_.name | Out-String).Trim() $RootCause = ($_.rootCause | Out-String).Trim() $malopDetectionType = ($_.malopDetectionType | Out-String).Trim() $parentId = ($_.rule.parentId | Out-String).Trim() $elementType = ($_.rule.root.elementType | Out-String).Trim() $facetName = ($_.rule.root.filters.facetName | Out-String).Trim() $values = ($_.rule.root.filters.values | Out-String).Trim() $filterType = ($_.rule.root.filters.filterType | Out-String).Trim() $featureTranslation = ($_.rule.root.filters.featureTranslation | Out-String).Trim() $children = $_.rule.root.children $malopActivityType = ($_.root.malopActivityType | Out-String).Trim() $description = ($_.description | Out-String).Trim() $enabled = ($_.enabled | Out-String).Trim() $userName = ($_.userName | Out-String).Trim() $creationTime = Get-Date -Date ($_.creationTime) $updateTime = Get-Date -Date ($_.updateTime) $lastTriggerTime = Get-Date -Date ($_.lastTriggerTime) $autoRemediationActions = $_.autoRemediationActions $autoRemediationStatus = $_.autoRemediationStatus $limitExceed = ($Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty limitExceed | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{ id=$id; Name=$name; RootCause=$RootCause; malopDetectionType=$malopDetectionType; parentId=$parentId; elementType=$elementType; facetName=$facetName; values=$values; filterType=$filterType; featureTranslation=$featureTranslation; children=$children; malopActivityType=$malopActivityType; description=$description; enabled=$enabled; userName=$userName; creationTime=$creationTime; updateTime=$updateTime; lastTriggerTime=$lastTriggerTime; autoRemediationActions=$autoRemediationActions; autoRemediationStatus=$autoRemediationStatus; limitExceed=$limitExceed } # End Properties } # End ForEach-Object If ($Obj.Count -eq 0) { Write-Output "[*] No results were found" } # End If Else { $Obj } # End Else } # End Switch Active 'Disabled' { $Uri = 'https://' + $Server + ':' + $Port + '/rest/customRules/decisionFeature/deleted' Write-Verbose "Sending query to $Uri" $Response = Invoke-WebRequest -Method GET -ContentType 'application/json' -Uri $Uri -WebSession $Session $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty rules | ` ForEach-Object { $id = ($_.id | Out-String).Trim() $Name = ($_.name | Out-String).Trim() $RootCause = ($_.rootCause | Out-String).Trim() $malopDetectionType = ($_.malopDetectionType | Out-String).Trim() $parentId = ($_.rule.parentId | Out-String).Trim() $elementType = ($_.rule.root.elementType | Out-String).Trim() $facetName = ($_.rule.root.filters.facetName | Out-String).Trim() $values = ($_.rule.root.filters.values | Out-String).Trim() $filterType = ($_.rule.root.filters.filterType | Out-String).Trim() $featureTranslation = ($_.rule.root.filters.featureTranslation | Out-String).Trim() $children = $_.rule.root.children $malopActivityType = ($_.root.malopActivityType | Out-String).Trim() $description = ($_.description | Out-String).Trim() $enabled = ($_.enabled | Out-String).Trim() $userName = ($_.userName | Out-String).Trim() $creationTime = Get-Date -Date ($_.creationTime) $updateTime = Get-Date -Date ($_.updateTime) $lastTriggerTime = Get-Date -Date ($_.lastTriggerTime) $autoRemediationActions = $_.autoRemediationActions $autoRemediationStatus = $_.autoRemediationStatus $limitExceed = ($Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty limitExceed | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{ id=$id; Name=$name; RootCause=$RootCause; malopDetectionType=$malopDetectionType; parentId=$parentId; elementType=$elementType; facetName=$facetName; values=$values; filterType=$filterType; featureTranslation=$featureTranslation; children=$children; malopActivityType=$malopActivityType; description=$description; enabled=$enabled; userName=$userName; creationTime=$creationTime; updateTime=$updateTime; lastTriggerTime=$lastTriggerTime; autoRemediationActions=$autoRemediationActions; autoRemediationStatus=$autoRemediationStatus; limitExceed=$limitExceed } # End Properties } # End ForEach-Object If ($Obj.Count -eq 0) { Write-Output "[*] No results were found" } # End If Else { $Obj } # End Else } # End Switch Disabled 'RootCauses' { $Uri = 'https://' + $Server + ':' + $Port + '/rest/customRules/rootCauses' Write-Verbose "Sending query to $Uri" $Response = Invoke-WebRequest -Method GET -ContentType 'application/json' -Uri $Uri -WebSession $Session $Response.Content | ConvertFrom-Json } # End Switch RootCauses 'DetectionTypes' { $Uri = 'https://' + $Server + ':' + $Port + '/rest/customRules/getMalopDetectionTypes' Write-Verbose "Sending query to $Uri" $Response = Invoke-WebRequest -Method GET -ContentType 'application/json' -Uri $Uri -WebSession $Session $Response.Content | ConvertFrom-Json } # End Switch DetectionTypes 'ActivityTypes' { $Uri = 'https://' + $Server + ':' + $Port + '/rest/customRules/getMalopActivityTypes' Write-Verbose "Sending query to $Uri" $Response = Invoke-WebRequest -Method GET -ContentType 'application/json' -Uri $Uri -WebSession $Session $Response.Content | ConvertFrom-Json } # End Switch ActivityTypes 'ModificationHistory' { $Obj = @() $Uri = 'https://' + $Server + ':' + $Port + '/rest/customRules/history/' + $RuleID.ToString() Write-Verbose "Sending query to $Uri" $Response = Invoke-WebRequest -Method GET -ContentType 'application/json' -Uri $Uri -WebSession $Session $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty history | ` ForEach-Object { $Username = ($_.username | Out-String).Trim() $Date = Get-Date -Date $_.date $JsonRef = ($_.changes.jsonRef | Out-String).Trim() $OriginalValue = ($_.changes.originalValue | Out-String).Trim() $NewValue = ($_.changes.newValue | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{Username=$Username; $Date=$Date; JsonRef=$JsonRef; OriginalValue=$OriginalValue; NewValue=$NewValue} } # End ForEach-Object If ($Obj.Length -eq 0) { Write-Output "[*] No results were found" } # End If Else { $Obj } # End Else } # End Switch ModificationHistory } # End Switch } # End Function Get-CybereasonCustomDetectionRule <# .SYNOPSIS This cmdlet is used to creates a custom detection rule .DESCRIPTION Creates a custom detection rule. Custom detection rules created via API should be created only after adequate research regarding precision and coverage has been completed. Creating a custom detection rule that is not specific enough can have detrimental impact on retention and overall performance of the environment. .PARAMETER Name This parameter gives the rule you are creating a name .PARAMETER FacetName The name of the Feature on which to filter the base Element .PARAMETER ChildFacetName The name of the child feature on which to filter the base Child Element .PARAMETER RootCause The Element which is identified as the root cause in the Malop generated from the custom detection rule. Possible values include: self (the base Element is malicious) OR imageFile (the image file for the base Element is malicious) OR parentProcess (the parent process for the base Element is malicious) .PARAMETER MalopDetectionType The detection type to assign to Malops generated from this custom detection rule. .PARAMETER MalopActivityType The activity type to assign to Malops generated from this custom detection rule. .PARAMETER ElementType The Element used as the base of the custom detection rule. .PARAMETER ChildElementType The Child Element used as the base of the custom detection rule. .PARAMETER ConnectionFeature Parameter to define the link between parent and child facets. https://nest.cybereason.com/api-documentation/all-versions/APIReference/CustomRulesAPI/customRulesConnectionFeatures.html#supported-features-for-linking-elements-in-a-custom-detection-rule .PARAMETER Description The description for this custom detection rule. .PARAMETER EnableOnCreation Indicates whether or not to enable this detection rule upon creation. Defining this switch parameter sets this value to true to automatically enable the rule. .PARAMETER KillProcess This parameter indicates you want to kill any malicious discovered processes .PARAMETER QuarantineFile This paraemeter defines that you want to quarantine files that are infectious .PARAMETER IsolateMachine This parameter indicates you want to isolate machines that become infected .EXAMPLE New-CybereasonCustomDetectionRule # This example .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/documentation/api-documentation/all-versions/add-custom-detection-rules https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function New-CybereasonCustomDetectionRule { [CmdletBinding()] param( [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] This parameter is a name to assign to the custom rule. `n[E] EXAMPLE: Test Rule 1" )] # End Parameter [String]$Name, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The name of the Feature on which to filter the base Element.`n[E] EXAMPLE: maliciousUseOfRegsvr32ModuleEvidence")] # End Parameter [String]$FacetName, [Parameter( ParameterSetName='Children', Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The name of the child Feature on which to filter the base Element.`n[E] EXAMPLE: maliciousUseOfRegsvr32ModuleEvidence")] # End Parameter [String]$ChildFacetName, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The Element which is identified as the root cause in the Malop generated from the custom detection rule. `n[E] EXAMPLE: parentProcess")] # End Parameter [ValidateSet('self','imageFile','parentProcess')] [String]$RootCause, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The detection type to assign to Malops generated from this custom detection rule.`n[E] EXAMPLE: BLACKLIST")] # End Parameter [ValidateSet('BLACKLIST','CNC','CUSTOM_RULE','UNAUTHORIZED_USER','CREDENTIAL_THEFT','DATA_TRANSMISSION_VOLUME','ELEVATED_ACCESS','EXTENSION_MANIPULATION','KNOWN_MALWARE','LATERAL_MOVEMENT','MALWARE_PROCESS','MALICIOUS_PROCESS','PUP','PERSISTENCE','PHISHING','PROCESS_INJECTION','RANSOMWARE','RECONNAISSANCE')] [String]$MalopDetectionType, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The activity type to assign to Malops generated from this custom detection rule.`n[E] EXAMPLE: STOLEN_CREDENTIALS")] # End Parameter [ValidateSet('CNC_COMMUNICATION','DATA_THEFT','MALICIOUS_INFECTION','LATERAL_MOVEMENT','PRIVILEGE_ESCALATION','RANSOMWARE','SCANNING','STOLEN_CREDENTIALS')] [String]$MalopActivityType, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The Element used as the base of the custom detection rule. Possible values include: Process or LogonSession `n[E] EXAMPLE: Process")] # End Parameter [ValidateSet('Process','LogonSession')] [String]$ElementType, [Parameter( ParameterSetName='Children', Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The Element used as the base of the custom detection rule. Possible values include: Process or LogonSession `n[E] EXAMPLE: Process")] # End Parameter [ValidateSet('Process','LogonSession')] [String]$ChildElementType, [Parameter( ParameterSetName='Children', Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The name of the Feature that connects the linked Elements. `n[E] EXAMPLE: msword.exe")] # End Parameter [String]$ChildElementName, [Parameter( ParameterSetName='Children', Mandatory=$True, ValueFromPipeline=$False, HelpMessage="The name of the Feature that connects the linked Elements. This Feature name corresponds with the name of the linked Element. For details on the Features available to use as connection features, see Supported Features for Linking Elements in a Custom Detection Rule. https://nest.cybereason.com/api-documentation/all-versions/APIReference/CustomRulesAPI/customRulesConnectionFeatures.html#supported-features-for-linking-elements-in-a-custom-detection-rule")] # End Parameter [ValidateSet('DomainName','Machine','urlDomains','fileHash','ownerMachine','remoteMachine','user','file','autorun','children','connections','hostedChildren','hostProcess','imageFile','injectedChildren','loadedModules','originInjector','parentProcess','scheduledTask','service','executableActions','binaryFile')] [String]$ConnectionFeature, [Parameter( Mandatory=$False, ValueFromPipeline=$False)] # End Parameter [String]$Description = $Name, [Parameter( Mandatory=$False)] # End Parameter [Switch][Bool]$EnableOnCreation, [Parameter( Mandatory=$False)] # End Parameter [Switch][Bool]$KillProcess, [Parameter( Mandatory=$False)] # End Parameter [Switch][Bool]$QuarantineFile, [Parameter( Mandatory=$False)] # End Parameter [Switch][Bool]$IsolateMachine ) # End param If ($EnableOnCreation.IsPresent) { $EnableOnCreate = 'true' } # End If Else { $EnableOnCreate = 'false' } # End Else If ($QuarantineFile.IsPresent) { $EnableQuarantine = 'true' } # End If Else { $EnableQuarantine = 'false' } # End Else If ($IsolateMachine.IsPresent) { $EnableIsolate = 'true' } # End If Else { $EnableIsolate = 'false' } # End Else If ($KillProcess.IsPresent) { $EnableKill = 'true' } # End If Else { $EnableKill = 'false' } # End Else $Uri = 'https://' + $Server + ':' + $Port + '/rest/customRules/decisionFeature/create' Switch ($PSBoundParameters.Keys) { 'Children' { $JsonData = '{"name":"' + $Name + '","rootCause":"' + $RootCause + '","malopDetectionType":"' + $MalopDetectionType + '","autoRemediationActions":{"killProcess":' + $EnableKill + ',"quarantineFile":' + $EnableQuarantine + ',"isolateMachine":' + $EnableIsolate + '},"autoRemediationStatus":"Active","rule":{"root":{"elementType":"' + $ElementType + '","elementTypeTranslation":"' + $ElementType + '","filters":[{"facetName":"' + $FacetName + '","filterType":"Equals","values":[True]}],"children": [{"elementType":"' + $ChildElementType + '","elementTypeTranslation":"' + $ChildElementType + '","connectionFeature":"' + $ConnectionFeature + '","connectionFeatureTranslation":"' + $ConnectionFeature + '","reversed":False,"filters": [{"facetName":"' + $ChildFacetName + '","filterType":"ContainsIgnoreCase","values":["' + $ChildElementName + '"]}]}]},"malopActivityType":"' + $MalopActivityType + '"},"description":"' + $Description + '","enabled":' + $EnableOnCreate + '}' } # End Switch Children Default { $JsonData = '{"name":"' + $Name + '","rootCause":"' + $RootCause + '","malopDetectionType":"' + $MalopDetectionType + '","autoRemediationActions":{"killProcess":' + $EnableKill + ',"quarantineFile":' + $EnableQuarantine + ',"isolateMachine":' + $EnableIsolate + '},"autoRemediationStatus":"Active","rule":{"root":{"elementType":"' + $ElementType + '","elementTypeTranslation":"' + $ElementType + '","filters":[{"facetName":"' + $FacetName + '","filterType":"Equals","values":[True]}]}},"malopActivityType":"' + $MalopActivityType + '"},"description":"' + $Description + '","enabled":' + $EnableOnCreate + '}' } # End Switch Default } # End Switch Write-Verbose "Sending query to $Uri" $Response = Invoke-WebRequest -Method POST -ContentType 'application/json' -Uri $Uri -WebSession $Session -Body $JsonData $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty rules | ` ForEach-Object { $id = ($_.id | Out-String).Trim() $Name = ($_.name | Out-String).Trim() $RootCause = ($_.rootCause | Out-String).Trim() $malopDetectionType = ($_.malopDetectionType | Out-String).Trim() $parentId = ($_.rule.parentId | Out-String).Trim() $elementType = ($_.rule.root.elementType | Out-String).Trim() $facetName = ($_.rule.root.filters.facetName | Out-String).Trim() $values = ($_.rule.root.filters.values | Out-String).Trim() $filterType = ($_.rule.root.filters.filterType | Out-String).Trim() $featureTranslation = ($_.rule.root.filters.featureTranslation | Out-String).Trim() $children = $_.rule.root.children $malopActivityType = ($_.root.malopActivityType | Out-String).Trim() $description = ($_.description | Out-String).Trim() $enabled = ($_.enabled | Out-String).Trim() $userName = ($_.userName | Out-String).Trim() $creationTime = Get-Date -Date ($_.creationTime) $updateTime = Get-Date -Date ($_.updateTime) $lastTriggerTime = Get-Date -Date ($_.lastTriggerTime) $autoRemediationActions = $_.autoRemediationActions $autoRemediationStatus = $_.autoRemediationStatus $limitExceed = ($Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty limitExceed | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{id=$id; Name=$name; RootCause=$RootCause; malopDetectionType=$malopDetectionType; parentId=$parentId; elementType=$elementType; facetName=$facetName; Values=$values;filterType=$filterType;featureTranslation=$featureTranslation;children=$children;malopActivityType=$malopActivityType;description=$description;enabled=$enabled;userName=$userName;creationTime=$creationTime;updateTime=$updateTime;lastTriggerTime=$lastTriggerTime;autoRemediationActions=$autoRemediationActions;autoRemediationStatus=$autoRemediationStatus;limitExceed=$limitExceed} # End Properties } # End ForEach-Object $Obj } # End Function New-CybereasonCustomDetectionRule <# .SYNOPSIS This cmdlet is used to updates an existing custom detection rule .DESCRIPTION Updates an existing custom detection rule. Custom Detection Rules can be created via API but should be created only once adequate research regarding precision and coverage has been completed. Creating a custom detection rule that is not specific enough can have detrimental impact on Retention and overall performance of the environment .PARAMETER RuleID The unique identifier for the custom detection rule. .PARAMETER Name This parameter gives the rule you are creating a name .PARAMETER FacetName The name of the Feature on which to filter the base Element .PARAMETER ChildFacetName The name of the child feature on which to filter the base Child Element .PARAMETER RootCause The Element which is identified as the root cause in the Malop generated from the custom detection rule. Possible values include: self (the base Element is malicious) OR imageFile (the image file for the base Element is malicious) OR parentProcess (the parent process for the base Element is malicious) .PARAMETER MalopDetectionType The detection type to assign to Malops generated from this custom detection rule. .PARAMETER MalopActivityType The activity type to assign to Malops generated from this custom detection rule. .PARAMETER ElementType The Element used as the base of the custom detection rule. .PARAMETER ChildElementType The Child Element used as the base of the custom detection rule. .PARAMETER ConnectionFeature Parameter to define the link between parent and child facets. https://nest.cybereason.com/api-documentation/all-versions/APIReference/CustomRulesAPI/customRulesConnectionFeatures.html#supported-features-for-linking-elements-in-a-custom-detection-rule .PARAMETER Description The description for this custom detection rule. .PARAMETER EnableOnCreation Indicates whether or not to enable this detection rule upon creation. Defining this switch parameter sets this value to true to automatically enable the rule. .PARAMETER KillProcess This parameter indicates you want to kill any malicious discovered processes .PARAMETER QuarantineFile This paraemeter defines that you want to quarantine files that are infectious .PARAMETER IsolateMachine This parameter indicates you want to isolate machines that become infected .PARAMETER Username The Cybereason user name for the user updating the rule .EXAMPLE Set-CybereasonCustomDetectionRule -RuleID 1580246401162 -Name 'Test Rule 1' -FacetName 'maliciousUseOfRegsvr32ModuleEvidence' -ChildFacetName name -RootCause self .NOTES Author: Robert H. Osborne Alias: tobor Contact: rosborne@osbornepro.com .INPUTS None .OUTPUTS None .LINK https://nest.cybereason.com/documentation/api-documentation/all-versions/update-custom-detection-rule https://roberthsoborne.com https://osbornepro.com https://btps-secpack.com https://github.com/tobor88 https://gitlab.com/tobor88 https://www.powershellgallery.com/profiles/tobor https://www.linkedin.com/in/roberthosborne/ https://www.youracclaim.com/users/roberthosborne/badges https://www.hackthebox.eu/profile/52286 #> Function Set-CybereasonCustomDetectionRule { [CmdletBinding()] param( [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The unique identifier for the custom detection rule.`n[E] EXAMPLE: 1580246401162")] # End Parameter [Int64]$RuleID, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] This parameter is a name to assign to the custom rule. `n[E] EXAMPLE: Test Rule 1" )] # End Parameter [String]$Name, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The name of the Feature on which to filter the base Element.`n[E] EXAMPLE: maliciousUseOfRegsvr32ModuleEvidence")] # End Parameter [String]$FacetName, [Parameter( ParameterSetName='Children', Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The name of the child Feature on which to filter the base Element.`n[E] EXAMPLE: name")] # End Parameter [String]$ChildFacetName, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The Element which is identified as the root cause in the Malop generated from the custom detection rule. `n[E] EXAMPLE: parentProcess")] # End Parameter [ValidateSet('self','imageFile','parentProcess')] [String]$RootCause, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The detection type to assign to Malops generated from this custom detection rule.`n[E] EXAMPLE: BLACKLIST")] # End Parameter [ValidateSet('BLACKLIST','CNC','CUSTOM_RULE','UNAUTHORIZED_USER','CREDENTIAL_THEFT','DATA_TRANSMISSION_VOLUME','ELEVATED_ACCESS','EXTENSION_MANIPULATION','KNOWN_MALWARE','LATERAL_MOVEMENT','MALWARE_PROCESS','MALICIOUS_PROCESS','PUP','PERSISTENCE','PHISHING','PROCESS_INJECTION','RANSOMWARE','RECONNAISSANCE')] [String]$MalopDetectionType, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The activity type to assign to Malops generated from this custom detection rule.`n[E] EXAMPLE: STOLEN_CREDENTIALS")] # End Parameter [ValidateSet('CNC_COMMUNICATION','DATA_THEFT','MALICIOUS_INFECTION','LATERAL_MOVEMENT','PRIVILEGE_ESCALATION','RANSOMWARE','SCANNING','STOLEN_CREDENTIALS')] [String]$MalopActivityType, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The Element used as the base of the custom detection rule. Possible values include: Process or LogonSession `n[E] EXAMPLE: Process")] # End Parameter [ValidateSet('Process','LogonSession')] [String]$ElementType, [Parameter( ParameterSetName='Children', Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The Element used as the base of the custom detection rule. Possible values include: Process or LogonSession `n[E] EXAMPLE: Process")] # End Parameter [ValidateSet('Process','LogonSession')] [String]$ChildElementType, [Parameter( ParameterSetName='Children', Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The name of the Feature that connects the linked Elements. `n[E] EXAMPLE: msword.exe")] # End Parameter [String]$ChildElementName, [Parameter( ParameterSetName='Children', Mandatory=$True, ValueFromPipeline=$False, HelpMessage="The name of the Feature that connects the linked Elements. This Feature name corresponds with the name of the linked Element. For details on the Features available to use as connection features, see Supported Features for Linking Elements in a Custom Detection Rule. https://nest.cybereason.com/api-documentation/all-versions/APIReference/CustomRulesAPI/customRulesConnectionFeatures.html#supported-features-for-linking-elements-in-a-custom-detection-rule")] # End Parameter [ValidateSet('DomainName','Machine','urlDomains','fileHash','ownerMachine','remoteMachine','user','file','autorun','children','connections','hostedChildren','hostProcess','imageFile','injectedChildren','loadedModules','originInjector','parentProcess','scheduledTask','service','executableActions','binaryFile')] [String]$ConnectionFeature, [Parameter( Mandatory=$False, ValueFromPipeline=$False)] # End Parameter [String]$Description = $Name, [Parameter( Mandatory=$False)] # End Parameter [Switch][Bool]$EnableOnCreation, [Parameter( Mandatory=$False)] # End Parameter [Switch][Bool]$KillProcess, [Parameter( Mandatory=$False)] # End Parameter [Switch][Bool]$QuarantineFile, [Parameter( Mandatory=$False)] # End Parameter [Switch][Bool]$IsolateMachine, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage="`n[H] The Cybereason user name for the user updating the rule.`n[E] EXAMPLE: admin@cybereason.com")] # End Parameter [String]$Username ) # End param If ($EnableOnCreation.IsPresent) { $EnableOnCreate = 'true' } # End If Else { $EnableOnCreate = 'false' } # End Else If ($QuarantineFile.IsPresent) { $EnableQuarantine = 'true' } # End If Else { $EnableQuarantine = 'false' } # End Else If ($IsolateMachine.IsPresent) { $EnableIsolate = 'true' } # End If Else { $EnableIsolate = 'false' } # End Else If ($KillProcess.IsPresent) { $EnableKill = 'true' } # End If Else { $EnableKill = 'false' } # End Else $Uri = 'https://' + $Server + ':' + $Port + '/rest/customRules/decisionFeature/update' $JsonData = '{"id":' + $RuleID + ',"name":"' + $Name + '","rootCause":"' + $RootCause + '","malopDetectionType":"' + $MalopDetectionType + '","autoRemediationActions":{"killProcess":' + $EnableKill + ',"quarantineFile":' + $EnableQuarantine + ',"isolateMachine":' + $EnableIsolate + '},"autoRemediationStatus":"Active","rule":{"root":{"elementType":"' + $ElementType + '","elementTypeTranslation":"' + $ElementType + '","filters":[{"facetName":"' + $FacetName + '","filterType":"Equals","values":[True]}],"children": [{"elementType":"' + $ChildElementType + '","elementTypeTranslation":"' + $ChildElementName + '","connectionFeature":"' + $ConnectionFeature + '","connectionFeatureTranslation":"' + $ConnectionFeature + '","reversed":False,"filters": [{"facetName":"' + $ChildElementType + '","filterType":"ContainsIgnoreCase","values":["' + $ChildElementName + '"]}]}]},"malopActivityType":"' + $MalopActivityType + '"},"description":"' + $Description + '","enabled":' + $EnableOnCreate + '})' Write-Verbose "Sending query to $Uri" $Response = Invoke-WebRequest -Method POST -ContentType 'application/json' -Uri $Uri -WebSession $Session -Body $JsonData $Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty rules | ` ForEach-Object { $id = ($_.id | Out-String).Trim() $Name = ($_.name | Out-String).Trim() $RootCause = ($_.rootCause | Out-String).Trim() $malopDetectionTypes = ($_.malopDetectionType | Out-String).Trim() $parentId = ($_.rule.parentId | Out-String).Trim() $elementType = ($_.rule.root.elementType | Out-String).Trim() $facetName = ($_.rule.root.filters.facetName | Out-String).Trim() $values = ($_.rule.root.filters.values | Out-String).Trim() $filterType = ($_.rule.root.filters.filterType | Out-String).Trim() $featureTranslation = ($_.rule.root.filters.featureTranslation | Out-String).Trim() $children = $_.rule.root.children $malopActivityType = ($_.root.malopActivityType | Out-String).Trim() $description = ($_.description | Out-String).Trim() $enabled = ($_.enabled | Out-String).Trim() $userName = ($_.userName | Out-String).Trim() $creationTime = Get-Date -Date ($_.creationTime) $updateTime = Get-Date -Date ($_.updateTime) $lastTriggerTime = Get-Date -Date ($_.lastTriggerTime) $autoRemediationActions = $_.autoRemediationActions $autoRemediationStatus = $_.autoRemediationStatus $limitExceed = ($Response.Content | ConvertFrom-Json | Select-Object -ExpandProperty limitExceed | Out-String).Trim() $Obj += New-Object -TypeName PSObject -Property @{id=$id; Name=$name; RootCause=$RootCause; malopDetectionType=$MalopDetectionTypes; parentId=$parentId; elementType=$elementType; facetName=$facetName; Values=$values;filterType=$filterType;featureTranslation=$featureTranslation;children=$children;malopActivityType=$malopActivityType;description=$description;enabled=$enabled;userName=$userName;creationTime=$creationTime;updateTime=$updateTime;lastTriggerTime=$lastTriggerTime;autoRemediationActions=$autoRemediationActions;autoRemediationStatus=$autoRemediationStatus;limitExceed=$limitExceed} # End Properties } # End ForEach-Object $Obj } # End Function Set-CybereasonCustomDetectionRule |