PowerGRR.psm1
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<#
MIT License Copyright (c) 2017 Swisscom (Schweiz) AG Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. #> #region PowerGRR Set-StrictMode -version latest #region CONSTANTS $ConfigFileName = "powergrr-config.ps1" $ErrorMessageMissingConfiguration = "No configuration file was found. Create a '$ConfigFileName' ('Configuration.ps1' is deprecated) within the profile folder ($(if($env:USERPROFILE){$env:USERPROFILE}else{$env:HOME})) or in the root of the module ($PSScriptRoot). At least set the variable `$GRRUrl to your GRR server's URL. See README on Github for more information." #endregion #region FUNCTIONS Function Get-GRRHuntInfo() { param( [string] $HuntId = $(throw "Provide a hunt id with -HuntId"), [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [switch] $ShowJSON ) $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" Write-Progress -Activity "Running $Function" $Info = Invoke-GRRRequest -Url "/hunts/$HuntId" -Credential $Credential -ShowJSON:$PSBoundParameters.containskey('ShowJSON') if ($Info) { $Results = Get-GRRHuntResult $HuntId -Credential $Credential if ($PSBoundParameters.containskey('ShowJSON')) { $Info = $Info.substring(5) | ConvertFrom-Json } if ($Results -and $Results.PSobject.Properties.name -match "total_count") { add-member -InputObject $Info -MemberType NoteProperty -Name "total_results" -value $Results.total_count } if ($PSBoundParameters.containskey('ShowJSON')) { $Info = $Info | ConvertTo-Json } $Info } Write-Verbose "$Function Leaving $Function" } # Get-GRRHuntInfo Function Get-GRRHuntResult() { param( [string] $HuntId = $(throw "Provide a hunt id with -HuntId"), [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [switch] $ShowJSON ) $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" Write-Progress -Activity "Running $Function" Invoke-GRRRequest -Url "/hunts/$HuntId/results" -Credential $Credential -ShowJSON:$PSBoundParameters.containskey('ShowJSON') Write-Verbose "$Function Leaving $Function" } # Get-GRRHuntResult Function Get-GRRComputerNameFromClientId() { param( [parameter(ValueFromPipeline=$True)] [string[]] $ClientId, [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [switch] $ShowJSON ) Begin { $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" $ret = "" } Process { Write-Progress -Activity "Running $Function" foreach ($client in $ClientId) { if ($client -match "^aff4.*") { $client = $client.Substring(6) } $params = @{ 'Url' = "/clients?query=$client"; 'Credential' = $Credential } $ret = Invoke-GRRRequest @params -ShowJSON:$PSBoundParameters.containskey('ShowJSON') if ($ret -and !$PSBoundParameters.containskey('ShowJSON') -and $ret.items) { $ret.items.os_info.node } else { $ret } } } End { Write-Verbose "$Function Leaving $Function" } } # Get-GRRComputerNameFromClientId Function Get-GRRClientIdFromComputerName() { param( [parameter(ValueFromPipeline=$True)] [string[]] $ComputerName, [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [switch] $OnlyLastSeen = $false, [switch] $ShowJSON ) Begin { $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" $ret = @() } Process { Write-Progress -Activity "Running $Function" foreach ($client in $ComputerName) { $res = Invoke-GRRRequest -Url "/clients?query=$client" -Credential $Credential -ShowJSON:$PSBoundParameters.containskey('ShowJSON') if ($res -and !$PSBoundParameters.containskey('ShowJSON') -and ($res.PSobject.Properties.name -match "items")) { foreach ($item in $res.items) { $info=[ordered]@{ ComputerName=$item.os_info.node ClientId=$item.urn.substring(6) LastSeenAt=$(Get-EpocTimeFromUtc ($item.last_seen_at).toString().Insert(10,".")) OSVersion=$item.os_info.kernel } $ret += New-Object PSObject -Property $info } } elseif ($res) { $info=[ordered]@{ ComputerName=$client JSON=$res } $ret += New-Object PSObject -Property $info } } } End { if ($OnlyLastSeen -and !$PSBoundParameters.containskey('ShowJSON')) { $RetReduced = @() foreach ($r in $ret) { $RetReduced += ($ret | Where-Object {$_.computername -eq $r.computername} | sort-object lastseenat -descending | select-object -first 1) } $RetReduced | sort-object computername -unique } else { $ret } Write-Verbose "$Function Leaving $Function" } } # Get-GRRClientIdFromComputerName Function Find-GRRClient() { param( [string] $SearchString = $(throw "Provide a search string with -SearchString"), [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [switch] $OnlyComputerName = $false, [switch] $ShowJSON ) process { $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" Write-Progress -Activity "Running $Function" $ret = Invoke-GRRRequest -Url "/clients?query=$($SearchString)" -Credential $Credential -ShowJSON:$PSBoundParameters.containskey('ShowJSON') if ($OnlyComputerName -and !$PSBoundParameters.containskey('ShowJSON')) { if ($ret -and $ret.items) { $ret.items.os_info.node } } else { $ret } } end { Write-Verbose "$Function Leaving $Function" } } # Find-GRRClient Function Find-GRRClientByLabel() { param( [string] $SearchString = $(throw "Provide a search string with -SearchString"), [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [switch] $OnlyComputerName = $false, [switch] $ShowJSON ) $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" Write-Progress -Activity "Running $Function" $ret = Invoke-GRRRequest -Url "/clients?query=label:$SearchString" -Credential $Credential -ShowJSON:$PSBoundParameters.containskey('ShowJSON') if ($OnlyComputerName -and !$PSBoundParameters.containskey('ShowJSON')) { if ($ret -and $ret.items) { $ret.items.os_info.node } } else { $ret } Write-Verbose "$Function Leaving $Function" } # Find-GRRClientByLabel Function Set-GRRLabel() { [CmdletBinding(SupportsShouldProcess=$True)] param( [parameter(ValueFromPipeline=$True)] [string[]] $ComputerName, [string[]] $Label = $(throw "Provide labels with -Label"), [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [switch] $ShowJSON ) Begin { $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" } Process { Write-Progress -Activity "Running $Function" if (!$ComputerName) { throw "Provide hostnames with -ComputerName" } else { $Headers,$Websession = Get-GRRSession -Credential $Credential $paramsComputerName = @{ 'ComputerName' = $ComputerName; 'Credential' = $Credential; 'OnlyLastSeen' = $true } $ClientId = Get-GRRClientIdFromComputerName @paramsComputerName if ($ClientId) { $Body = '{"client_ids":["'+$(($ClientId.ClientId)-join'","')+'"],"labels":["'+$($Label-join'","')+'"]}' Write-Verbose "Body: $Body" if ($pscmdlet.ShouldProcess( $( (Get-GRRComputerNameFromClientId -clientid $ClientId.ClientId -Credential $Credential)-join"," ), "Set label $Label")) { if ($Headers -and $Websession) { $params = @{ 'Url' = "/clients/labels/add"; 'Credential' = $Credential; 'Body' = $Body; 'Headers' = $Headers; 'Websession' = $Websession 'ShowJSON' = $PSBoundParameters.containskey('ShowJSON') } Invoke-GRRRequest @params } } #whatif } } } End { Write-Verbose "$Function Leaving $Function" } } # Set-GRRLabel function Remove-GRRLabel() { [CmdletBinding(SupportsShouldProcess=$True)] param( [parameter(ValueFromPipeline=$True)] [string[]] $ComputerName, [string[]] $Label = $(throw "Provide labels with -Label"), [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [switch] $ShowJSON ) Begin { $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" } Process { Write-Progress -Activity "Running $Function" if (!$ComputerName) { throw "Provide hostnames with -ComputerName" } else { $Headers,$Websession = Get-GRRSession -Credential $Credential $paramsComputerName = @{ 'ComputerName' = $ComputerName; 'Credential' = $Credential; 'OnlyLastSeen' = $true } $ClientId = Get-GRRClientIdFromComputerName @paramsComputerName if ($ClientId) { $Body = '{"client_ids":["'+$(($ClientId.ClientId)-join'","')+'"],"labels":["'+$($Label-join'","')+'"]}' if ($pscmdlet.ShouldProcess( $( (Get-GRRComputerNameFromClientId -clientid $ClientId.ClientId -Credential $Credential)-join"," ), "Remove label $Label")) { if ($Headers -and $Websession) { $params = @{ 'Url' = "/clients/labels/remove"; 'Credential' = $Credential; 'Body' = $Body; 'Headers' = $Headers; 'websession' = $Websession } Invoke-GRRRequest @params -ShowJSON:$PSBoundParameters.containskey('ShowJSON') } } # whatif } } } End { Write-Verbose "$Function Leaving $Function" } } # Remove-GRRLabel function Invoke-GRRHunt() { #todo Use New-GRRHunt and then Start-GRRHunt } function New-GRRHuntApproval() { [CmdletBinding(SupportsShouldProcess=$True)] param( [Parameter(Mandatory=$true)] [string] $HuntId, [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [Parameter(Mandatory=$true)] [string[]] $NotifiedUsers, [Parameter(Mandatory=$true)] [string] $Reason, [switch] $OnlyId, [switch] $ShowJSON ) Begin { $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" $ret = "" } Process { Write-Progress -Activity "Running $Function" $Headers,$Websession = Get-GRRSession -Credential $Credential $Body = '{"approval":{"notified_users":["'+$($NotifiedUsers -join "`",")+'"],"reason":"'+$Reason+'"}}' Write-Verbose "Body: $Body" $params = @{ 'Url' = "/users/me/approvals/hunt/$HuntId"; 'Body' = $Body; 'Headers' = $Headers; 'Websession' = $Websession; 'Credential' = $Credential } if ($pscmdlet.ShouldProcess($HuntId, "Requesting a new hunt approval")) { $ret = Invoke-GRRRequest @params } if ($ret -and $OnlyId) { $ret.id } else { $ret } } # process End { Write-Verbose "$Function Leaving $Function" } } function New-GRRClientApproval() { [CmdletBinding(SupportsShouldProcess=$True)] param( [Parameter(Mandatory=$true)] [string] $ComputerName, [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [Parameter(Mandatory=$true)] [string[]] $NotifiedUsers, [Parameter(Mandatory=$true)] [string] $Reason, [switch] $OnlyId, [switch] $ShowJSON ) Begin { $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" } Process { Write-Progress -Activity "Running $Function" $Headers,$Websession = Get-GRRSession -Credential $Credential $Body = '{"approval":{"notified_users":["'+$($NotifiedUsers -join "`",")+'"],"reason":"'+$Reason+'"}}' Write-Verbose "Body: $Body" $paramsComputerName = @{ 'ComputerName' = $ComputerName; 'Credential' = $Credential; 'OnlyLastSeen' = $true } $ClientId = Get-GRRClientIdFromComputerName @paramsComputerName if ($ClientId -and ($ClientId.PSobject.Properties.name -match "ClientId")) { $ClientId = $ClientId.ClientId $params = @{ 'Url' = "/users/me/approvals/client/$ClientId"; 'Body' = $Body; 'Headers' = $Headers; 'Websession' = $Websession; 'Credential' = $Credential } $ret = "" if ($pscmdlet.ShouldProcess($ComputerName, "Requesting a new client approval")) { $ret = Invoke-GRRRequest @params } if ($ret -and $OnlyId) { $ret.id } else { $ret } } else { write-warning "No GRR client id found for $ComputerName" } } # process End { Write-Verbose "$Function Leaving $Function" } } function Start-GRRHunt() { [CmdletBinding(SupportsShouldProcess=$True)] param( [string] $HuntId, [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [switch] $ShowJSON ) Begin { $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" $ret = "" } Process { Write-Progress -Activity "Running $Function" $Headers,$Websession = Get-GRRSession -Credential $Credential $params = @{ 'Url' = "/hunts/$HuntId"; 'Body' = '{"state":"STARTED"}'; 'Headers' = $Headers; 'Websession' = $Websession; 'Method' = "PATCH"; 'Credential' = $Credential } # If 403 - it could be due to the missing approval if ($pscmdlet.ShouldProcess($HuntId, "Starting hunt")) { $ret = Invoke-GRRRequest @params } if ($ret) { $ret } } # process End { Write-Verbose "$Function Leaving $Function" } } #Start-GRRHunt function Stop-GRRHunt() { [CmdletBinding(SupportsShouldProcess=$True)] param( [string] $HuntId, [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [switch] $ShowJSON ) Begin { $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" $ret = "" } Process { Write-Progress -Activity "Running $Function" $Headers,$Websession = Get-GRRSession -Credential $Credential $params = @{ 'Url' = "/hunts/$HuntId"; 'Body' = '{"state":"STOPPED"}'; 'Headers' = $Headers; 'Websession' = $Websession; 'Method' = "PATCH"; 'Credential' = $Credential } # If 403 - it could be due to the missing approval if ($pscmdlet.ShouldProcess($HuntId, "Stopping hunt")) { $ret = Invoke-GRRRequest @params } if ($ret) { $ret } } # process End { Write-Verbose "$Function Leaving $Function" } } #Stop-GRRHunt # todo remove duplicate flow code (see Invoke-GRRFlow) function New-GRRHunt() { [CmdletBinding(SupportsShouldProcess=$True)] param( [Parameter(Mandatory=$true)] [string] $HuntDescription, [Parameter(Mandatory=$true)] [ValidateSet("Netstat","ListProcesses","FileFinder","RegistryFinder","ExecutePythonHack","ArtifactCollectorFlow")] [string] $Flow, #[ValidateSet("MATCH_ALL","MATCH_ANY")] #[string] #$MatchMode, [Parameter(Mandatory=$true)] [string] [ValidateSet("Label","OS")] $RuleType, [int] $ClientRate, [int] $ClientLimit, [string] $EmailAddress, [switch] $OnlyUrl, # Fix for dynamic parameter autocompletion issue: https://github.com/PowerShell/PowerShell/issues/3984 #[Parameter(Mandatory=$true)] #[System.Management.Automation.PSCredential] #[System.Management.Automation.Credential()] $Credential, [switch] $ShowJSON ) DynamicParam { $Dictionary = New-Object System.Management.Automation.RuntimeDefinedParameterDictionary if ($PSBoundParameters.containskey('flow') -and $PSBoundParameters.Flow -eq "FileFinder") { New-DynamicParam -Name Path -mandatory -DPDictionary $Dictionary -Type String[] New-DynamicParam -Name ActionType -mandatory -ValidateSet Hash,Download -DPDictionary $Dictionary } elseif ($PSBoundParameters.containskey('flow') -and $PSBoundParameters.Flow -eq "RegistryFinder") { New-DynamicParam -Name Key -mandatory -DPDictionary $Dictionary -Type String[] } elseif ($PSBoundParameters.containskey('flow') -and $PSBoundParameters.Flow -eq "ListProcesses") { New-DynamicParam -Name FileNameRegex -DPDictionary $Dictionary } elseif ($PSBoundParameters.containskey('flow') -and $PSBoundParameters.Flow -eq "ExecutePythonHack") { New-DynamicParam -Name HackName -mandatory -DPDictionary $Dictionary New-DynamicParam -Name PyArgsName -mandatory -DPDictionary $Dictionary New-DynamicParam -Name PyArgsValue -mandatory -DPDictionary $Dictionary } elseif ($PSBoundParameters.containskey('flow') -and $PSBoundParameters.Flow -eq "ArtifactCollectorFlow") { New-DynamicParam -Name ArtifactList -mandatory -DPDictionary $Dictionary -Type string[] } if ($PSBoundParameters.containskey('RuleType') -and $PSBoundParameters.RuleType -eq "OS") { New-DynamicParam -Name OS -mandatory -DPDictionary $Dictionary -Type string -ValidateSet @("os_windows","os_darwin","os_linux") } elseif ($PSBoundParameters.containskey('RuleType') -and $PSBoundParameters.RuleType -eq "Label") { New-DynamicParam -Name "Label" -mandatory -DPDictionary $Dictionary -Type string[] } $Dictionary } Begin { $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" Set-NewVariable -Parameters $PSBoundParameters # Fix for dynamic parameter autocompletion issue: https://github.com/PowerShell/PowerShell/issues/3984 if (!$Credential -or ($Credential.GetType()).name -ne "PSCredential") { Write-Debug "Credentials not supplied or of wrong type." try { $Credential = Microsoft.PowerShell.Security\get-credential } catch { throw "Use the parameter '-Credential' and 'Microsoft.PowerShell.Security\get-credential' to supply your credentials." break } } } Process { Write-Progress -Activity "Running $Function" $Headers,$Websession = Get-GRRSession -Credential $Credential $OutputPlugin = "" if ($EmailAddress) { $OutputPlugin = '{"plugin_name":"EmailOutputPlugin","plugin_args":{"email_address":"' $OutputPlugin += $EmailAddress+'","emails_limit":1}}' } $FlowArgs = "{}" if ($Flow -eq "FileFinder") { $FlowArgs = '{"paths":["'+$($PSBoundParameters['Path']-join'","')+'"],' $FlowArgs += '"action":{"action_type":"'+($($PSBoundParameters['ActionType'])).toUpper()+'"}}' $FlowArgs = $FlowArgs -replace "\\", "\\" } elseif ($Flow -eq "RegistryFinder") { $FlowArgs = '{"keys_paths":["'+$($PSBoundParameters['Key']-join'","')+'"]}' } elseif ($Flow -eq "ListProcesses") { if ($PSBoundParameters['FileNameRegex']) { $FlowArgs = '{"filename_regex":"'+$PSBoundParameters['FileNameRegex']+'"}' } else { $FlowArgs = '{"filename_regex":"."}' } } elseif ($Flow -eq "ExecutePythonHack") { $HackArguments = $($PSBoundParameters['PyArgsValue']) $HackArguments = $HackArguments -replace "\\", "\\" $HackArguments = $HackArguments -replace '"', '\"' $FlowArgs = '{"hack_name":"'+$($PSBoundParameters['HackName'])+'","py_args":{"'+$($PSBoundParameters['PyArgsName'])+'":"'+$HackArguments+'"}}' } elseif ($Flow -eq "ArtifactCollectorFlow") { $AllArtifacts = Get-GRRArtifact -Credential $Credential if ($AllArtifacts) { $AllArtifacts = $AllArtifacts | select -ExpandProperty name } else { Throw "No artifacts found in GRR" } $ValidatedArtifacts = @() foreach ($Artifact in $PSBoundParameters['ArtifactList']) { if ($AllArtifacts -and $AllArtifacts.contains($Artifact)) { $ValidatedArtifacts += $Artifact } else { write-warning "Skipping artifact `'$Artifact`' because it is not defined in GRR." } } if($ValidatedArtifacts) { $ValidatedArtifacts = $ValidatedArtifacts | Get-Unique } else { Throw "No artifacts found in GRR which match the command" } $FlowArgs = '{"artifact_list":["'+ $($ValidatedArtifacts -join "`",`"") + '"]}' Write-Verbose "FlowArgs for ArtifactCollectorFlow: $FlowArgs" } if ($RuleType -eq "Label") { $AllLabels = Get-GRRLabel -Credential $Credential $Labels = $PSBoundParameters['Label'] $ValidatedLabels = @() if(!$AllLabels) { Throw "No labels found." } foreach ($Label in $Labels) { if ($AllLabels.contains($Label)) { $ValidatedLabels += $Label } else { write-warning "Skipping label `"$Label`" because it does not exist. Set the label with Set-GRRLabel first." } } if($ValidatedLabels) { $ValidatedLabels = $ValidatedLabels | Get-Unique } else { Throw "No valid labels found." } $Rule = '"client_rule_set":{"rules":[' $Rule += '{"rule_type":"'+$RuleType.toUpper()+'",' $Rule += '"'+$RuleType.toLower()+'":{"match_mode":"'+"MATCH_ANY"+'",' $Rule += '"label_names":["'+$($ValidatedLabels-join'","')+'"]}}]}' } elseif ($RuleType -eq "OS") { # "client_rule_set":{"rules":[{"os":{"os_darwin":true}}]} $Rule = '"client_rule_set":{"rules":[{"os":{"'+$($PSBoundParameters['OS'])+'":true}}]}' } if(!$ClientLimit) { $ClientLimit = 100 } if(!$ClientRate) { $ClientRate = 20 } $Body = '{"flow_name":"'+$Flow+'","hunt_runner_args":{"output_plugins":['+$OutputPlugin+'],' $Body += $Rule+',"description":"'+$HuntDescription+'","client_limit":'+$ClientLimit+',"client_rate":'+$ClientRate+'},"flow_args":'+$FlowArgs+'}' Write-Verbose "Create hunt with the following arguments: $Body" if ($pscmdlet.ShouldProcess("$RuleType", "Create new hunt with following arguments: $Body")) { $params = @{ 'Url' = "/hunts"; 'Credential' = $Credential; 'Body' = $Body; 'Headers' = $Headers; 'Websession' = $Websession } $HuntReturnValue = Invoke-GRRRequest @params -ShowJSON:$PSBoundParameters.containskey('ShowJSON') if ($HuntReturnValue -and $OnlyUrl -and !$PSBoundParameters.containskey('ShowJSON')) { "$GRRUrl/#/hunts/$(($HuntReturnValue.urn).substring(12))" } else { $HuntReturnValue } } # whatif } # process End { Write-Verbose "$Function Leaving $Function" } } # New-GRRHunt function Invoke-GRRFlow() { [CmdletBinding(SupportsShouldProcess=$True)] param( [parameter(ValueFromPipeline=$True, Mandatory=$true)] [string[]] $ComputerName, # Fix for dynamic parameter autocompletion issue: https://github.com/PowerShell/PowerShell/issues/3984 #[Parameter(Mandatory=$true)] #[System.Management.Automation.PSCredential] #[System.Management.Automation.Credential()] $Credential, [Parameter(Mandatory=$true)] [ValidateSet("Netstat","ListProcesses","FileFinder","RegistryFinder","ExecutePythonHack","ArtifactCollectorFlow")] [string] $Flow, [string] $EmailAddress, [switch] $ShowJSON ) DynamicParam { $Dictionary = New-Object System.Management.Automation.RuntimeDefinedParameterDictionary if ($PSBoundParameters.containskey('flow') -and $PSBoundParameters.Flow -eq "FileFinder") { New-DynamicParam -Name Path -mandatory -DPDictionary $Dictionary -Type String[] New-DynamicParam -Name ActionType -mandatory -ValidateSet Hash,Download -DPDictionary $Dictionary } elseif ($PSBoundParameters.containskey('flow') -and $PSBoundParameters.Flow -eq "RegistryFinder") { New-DynamicParam -Name Key -mandatory -DPDictionary $Dictionary -Type String[] } elseif ($PSBoundParameters.containskey('flow') -and $PSBoundParameters.Flow -eq "ListProcesses") { New-DynamicParam -Name FileNameRegex -DPDictionary $Dictionary } elseif ($PSBoundParameters.containskey('flow') -and $PSBoundParameters.Flow -eq "ExecutePythonHack") { New-DynamicParam -Name HackName -mandatory -DPDictionary $Dictionary New-DynamicParam -Name PyArgsName -mandatory -DPDictionary $Dictionary New-DynamicParam -Name PyArgsValue -mandatory -DPDictionary $Dictionary } elseif ($PSBoundParameters.containskey('flow') -and $PSBoundParameters.Flow -eq "ArtifactCollectorFlow") { New-DynamicParam -Name ArtifactList -mandatory -DPDictionary $Dictionary -Type string[] } $Dictionary } Begin { $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" Set-NewVariable -Parameters $PSBoundParameters # Fix for dynamic parameter autocompletion issue: https://github.com/PowerShell/PowerShell/issues/3984 if (!$Credential -or ($Credential.GetType()).name -ne "PSCredential") { Write-Debug "Credentials not supplied or of wrong type." try { $Credential = Microsoft.PowerShell.Security\get-credential } catch { throw "Use the parameter '-Credential' and 'Microsoft.PowerShell.Security\get-credential' to supply your credentials." break } } } Process { Write-Progress -Activity "Running $Function" $Headers,$Websession = Get-GRRSession -Credential $Credential $OutputPlugin = "" if ($EmailAddress) { $OutputPlugin = '{"plugin_name":"EmailOutputPlugin",' $OutputPlugin += '"plugin_args":{"email_address":"'+$EmailAddress+'","emails_limit":1}}' } $PluginArguments = "{}" if ($Flow -eq "FileFinder") { $PluginArguments = '{"paths":["'+$($PSBoundParameters['Path']-join'","')+'"],' $PluginArguments += '"action":{"action_type":"'+$($PSBoundParameters['ActionType'])+'"}}' $PluginArguments = $PluginArguments -replace "\\", "\\" } elseif ($Flow -eq "RegistryFinder") { $PluginArguments = '{"keys_paths":["'+$($PSBoundParameters['Key']-join'","')+'"]}' } elseif ($Flow -eq "ListProcesses") { if ($PSBoundParameters['FileNameRegex']) { $PluginArguments = '{"filename_regex":"'+$PSBoundParameters['FileNameRegex']+'"}' } else { $PluginArguments = '{"filename_regex":"."}' } } elseif ($Flow -eq "ExecutePythonHack") { $HackArguments = $($PSBoundParameters['PyArgsValue']) $HackArguments = $HackArguments -replace "\\", "\\" $HackArguments = $HackArguments -replace '"', '\"' $PluginArguments = '{"hack_name":"'+$($PSBoundParameters['HackName'])+'","py_args":{"'+$($PSBoundParameters['PyArgsName'])+'":"'+$HackArguments+'"}}' } elseif ($Flow -eq "ArtifactCollectorFlow") { $AllArtifacts = Get-GRRArtifact -Credential $Credential if ($AllArtifacts) { $AllArtifacts = $AllArtifacts | select -ExpandProperty name } else { Throw "No artifacts found in GRR" } $ValidatedArtifacts = @() foreach ($Artifact in $PSBoundParameters['ArtifactList']) { if ($AllArtifacts -and $AllArtifacts.contains($Artifact)) { $ValidatedArtifacts += $Artifact } else { write-warning "Skipping artifact `'$Artifact`' because it is not defined in GRR." } } if($ValidatedArtifacts) { $ValidatedArtifacts = $ValidatedArtifacts | Get-Unique } else { Throw "No artifacts found in GRR which match the command" } $PluginArguments = '{"artifact_list":["'+ $($ValidatedArtifacts -join "`",`"") + '"]}' Write-Verbose "PluginArguments for ArtifactCollectorFlow: $PluginArguments" } $Body = '{"flow":{"runner_args":{"flow_name":"'+$Flow+'",' $Body += '"output_plugins":['+$OutputPlugin+']},"args":'+$PluginArguments+'}}' $ret = @() foreach ($client in $ComputerName) { $params = @{ 'ComputerName' = $client; 'Credential' = $Credential 'OnlyLastSeen' = $true } $ClientId = Get-GRRClientIdFromComputerName @params if ($ClientId -and ($ClientId.PSobject.Properties.name -match "ClientId")) { $ClientId = $ClientId.ClientId if ($pscmdlet.ShouldProcess($client, "Invoking $Flow with following arguments: $Body")) { $params = @{ 'Url' = "/clients/$ClientId/flows"; 'Credential' = $Credential; 'Body' = $Body; 'Headers' = $Headers; 'Websession' = $Websession } $temp = Invoke-GRRRequest @params -ShowJSON:$PSBoundParameters.containskey('ShowJSON') if ($temp -and !$PSBoundParameters.containskey('ShowJSON')) { $info=[ordered]@{ ComputerName=$client ClientId=$ClientId FlowId=($temp.urn).Substring(31) } $ret += New-Object PSObject -Property $info } elseif ($PSBoundParameters.containskey('ShowJSON')) { $info=[ordered]@{ ComputerName=$client JSON=$temp } $ret += New-Object PSObject -Property $info } } # whatif } # client id is available else { Write-warning "No GRR client id found for $client" } } # foreach computername } # process End { $ret Write-Verbose "$Function Leaving $Function" } } # Invoke-GRRFlow function Get-GRRFlowResult() { param( [parameter(ValueFromPipeline=$True, Mandatory=$true)] [string] $ComputerName, [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [string] [Parameter(Mandatory=$true)] $FlowId, [switch] $OnlyPayload, [switch] $ShowJSON ) Begin { $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" $ret = "" } Process { Write-Progress -Activity "Running $Function" $params = @{ 'ComputerName' = $ComputerName; 'Credential' = $Credential 'OnlyLastSeen' = $true } $ClientId = Get-GRRClientIdFromComputerName @params if ($ClientId) { $ClientId = $ClientId.ClientId $params = @{ 'Url' = "/clients/$ClientId/flows/$FlowId/results"; 'Credential' = $Credential } $ret = Invoke-GRRRequest @params -ShowJSON:$PSBoundParameters.containskey('ShowJSON') } else { Write-warning "No ClientId found for $ComputerName" } } # process End { if ($ret) { if (!$PSBoundParameters.containskey('ShowJSON') -and $OnlyPayload -and $ret.items) { try { $ret.items.payload | ConvertFrom-Base64 } catch { $ret.items.payload } } else { $ret } } Write-Verbose "$Function Leaving $Function" } } # Get-GRRFlowResult Function Get-GRRLabel() { [OutputType([string[]])] param( [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [switch] $ShowJSON ) $Function = $MyInvocation.MyCommand $ret = @() Write-Verbose "$Function Entering $Function" Write-Progress -Activity "Running $Function" $ret = Invoke-GRRRequest -Url "/clients/labels" -Credential $Credential -ShowJSON:$PSBoundParameters.containskey('ShowJSON') if ($PSBoundParameters.containskey('ShowJSON')) { $ret } elseif ($ret -and ($ret.PSobject.Properties.name -match "items")) { try { $ret.items.name } catch {} } Write-Verbose "$Function Leaving $Function" } # Get-GRRLabel Function Get-GRRHunt() { [CmdletBinding(DefaultParameterSetName="Count")] param( [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [Parameter(ParameterSetName="Count",Mandatory=$false)] [int] $Count, [Parameter(ParameterSetName="Count",Mandatory=$false)] [int] $Offset, [Parameter(ParameterSetName="CreatedBy",Mandatory=$false)] [string] $CreatedBy, [Parameter(ParameterSetName="DescriptionContains",Mandatory=$false)] [string] $DescriptionContains, [Parameter(ParameterSetName="CreatedBy",Mandatory=$true)] [Parameter(ParameterSetName="DescriptionContains",Mandatory=$true)] [string] $ActiveWithin, [switch] $ShowJSON ) $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" Write-Progress -Activity "Running $Function" $hunts = @() $params = @{ 'Credential' = $Credential; } $Url = "/hunts" if ($PSBoundParameters.containskey('Count')) { if ($Url -match "\?") { $Url += "&" } else { $Url += "?" } $Url += "count=$Count" } if ($PSBoundParameters.containskey('Offset')) { if ($Url -match "\?") { $Url += "&" } else { $Url += "?" } $Url += "offset=$Offset" } if ($PSBoundParameters.containskey('CreatedBy')) { if ($Url -match "\?") { $Url += "&" } else { $Url += "?" } $Url += "created_by=$CreatedBy" } if ($PSBoundParameters.containskey('ActiveWithin')) { if ($Url -match "\?") { $Url += "&" } else { $Url += "?" } $Url += "active_within=$ActiveWithin" } if ($PSBoundParameters.containskey('DescriptionContains')) { if ($Url -match "\?") { $Url += "&" } else { $Url += "?" } $Url += "description_contains=$DescriptionContains" } $params += @{ 'Url' = $Url; } Write-Verbose "URL: $Url" $ret = Invoke-GRRRequest @params -ShowJSON:$PSBoundParameters.containskey('ShowJSON') if ($ret -and !$PSBoundParameters.containskey('ShowJSON')) { foreach ($r in $ret.items) { $info=[ordered]@{ Created=$(Get-EpocTimeFromUtc ($r.created).toString().Insert(10,".")) HuntId=$r.urn Description=$r.description Creator=$r.Creator State=$r.state ClientLimit=$r.client_limit ClientRate=$r.client_rate } $hunts += New-Object PSObject -Property $info } } else { $ret } $hunts Write-Verbose "$Function Leaving $Function" } # Get-GRRHunt function Get-GRRFlowDescriptor() { [CmdletBinding()] param( [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [switch] $ShowJSON ) $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" Write-Progress -Activity "Running $Function" $params = @{ 'Url' = "/flows/descriptors"; 'Credential' = $Credential; 'ShowJSON' = $PSBoundParameters.containskey('ShowJSON'); } Write-Verbose "URL: $($params.url)" $ret = Invoke-GRRRequest @params if ($ret -and !$PSBoundParameters.containskey('ShowJSON') -and $ret.items) { $ret.items } else { $ret } Write-Verbose "$Function Leaving $Function" } function Get-GRRArtifact() { [CmdletBinding()] param( [Parameter(Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [switch] $ShowJSON ) $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" Write-Progress -Activity "Running $Function" $params = @{ 'Url' = "/artifacts"; 'Credential' = $Credential; 'ShowJSON' = $PSBoundParameters.containskey('ShowJSON'); } $ret = Invoke-GRRRequest @params $Artifacts = @() if ($ret -and !$PSBoundParameters.containskey('ShowJSON') -and ($ret.PSobject.Properties.name -match "items")) { # Build custom objects to only show relevant information foreach ($item in $ret.items) { $info=[ordered]@{ Name=$item.artifact.name Description=$item.artifact.doc IsCustom=$item.is_custom URLs=$(if (($item.artifact).psobject.properties.name -match "urls"){$item.artifact.urls}) Labels=$item.artifact.labels SupportedOS=$item.artifact.supported_os Type=$item.artifact.sources.type Attributes=$item.artifact.sources.attributes } $Artifacts += New-Object PSObject -Property $info } $Artifacts } else { $ret } Write-Verbose "$Function Leaving $Function" } Function Get-ClientCertificate() { if (Get-Variable -Name GRRClientCertIssuer -ErrorAction SilentlyContinue -valueonly) { $Cert = Get-ChildItem Cert:\CurrentUser\My | Where-Object {$_.Issuer -match $GRRClientCertIssuer } if ($Cert -and (($Cert | measure).count -eq 1)) { $Cert.Thumbprint } } else { Write-Verbose "No GRRClientCertIssuer variable is set in the config." } } # Get-ClientCertificate function Get-EpocTimeFromUtc ([long]$UnixTime) { $epoch = New-Object System.DateTime (1970, 1, 1, 0, 0, 0, [System.DateTimeKind]::Utc); $epoch.AddSeconds($UnixTime) } # FromUtcEpocTime function Get-GRRSession () { param( [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] [Parameter(Mandatory=$true)] $Credential ) $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" Write-Progress -Activity "Running $Function" if (Get-Variable -Name GRRUrl -ErrorAction SilentlyContinue -valueonly) { $GRRUrl = $GRRUrl.trim('/') $params = @{ 'Uri' = $GRRUrl; 'Credential' = $Credential; 'Method' = "get"; 'SessionVariable' = "Websession"; 'ContentType' = "application/x-www-form-urlencoded" } $ClientCertificate = Get-ClientCertificate Write-Verbose "Certificate '$ClientCertificate' will be used." if ($ClientCertificate) { $params += @{ 'CertificateThumbprint' = $ClientCertificate; } } if ($PSVersionTable.Contains("platform") -and ($PSVersionTable.Platform -match "Unix") -and (Get-Variable -Name GRRIgnoreCertificateErrors -ErrorAction SilentlyContinue -valueonly)) { $params += @{ 'SkipCertificateCheck' = $true; } } $Web = Invoke-WebRequest @params if ($Web) { $csrftoken = (($Web.Headers.'Set-Cookie') -split ";" -split "=")[1] $Headers = @{"x-csrftoken" = $($csrftoken)} return $Headers,$Websession } } # Variable $GRRUrl set else { Write-Error $ErrorMessageMissingConfiguration } Write-Verbose "$Function Leaving $Function" } # Get-GRRSession function Invoke-GRRRequest () { param( [Parameter(ParameterSetName="GET", Mandatory=$true)] [Parameter(ParameterSetName="POST", Mandatory=$true)] [string] $Url, [Parameter(ParameterSetName="POST", Mandatory=$true)] [string] $Body, [Parameter(ParameterSetName="POST", Mandatory=$true)] [System.Collections.Hashtable] $Headers, [Parameter(ParameterSetName="POST", Mandatory=$true)] [Microsoft.PowerShell.Commands.WebRequestSession] $Websession, [string] [ValidateSet("POST","GET", "PATCH")] $Method, [Parameter(ParameterSetName="GET", Mandatory=$true)] [Parameter(ParameterSetName="POST", Mandatory=$true)] [System.Management.Automation.PSCredential] [System.Management.Automation.Credential()] $Credential, [Parameter(ParameterSetName="GET", Mandatory=$false)] [Parameter(ParameterSetName="POST", Mandatory=$false)] [switch] $ShowJSON ) $Function = $MyInvocation.MyCommand Write-Verbose "$Function Entering $Function" Write-Progress -Activity "Running $Function" -Status "Running API call from $(((Get-PSCallStack)[1]).Command)" $ret = "" if ($Url[0] -eq "/") { $Url = $Url.Substring(1) } if ($Url -match "\?") { $Url += "&" } else { $Url += "?" } $Url += "strip_type_info=1" if (Get-Variable -Name GRRUrl -ErrorAction SilentlyContinue -valueonly) { $GRRUrl = $GRRUrl.trim('/') $params = @{ 'Uri' = "$($GRRUrl)/api/$Url"; 'Credential' = $Credential; 'TimeoutSec' = 600 } $ClientCertificate = Get-ClientCertificate if ($ClientCertificate) { $params += @{ 'CertificateThumbprint' = $ClientCertificate; } } if ($Body) { #POST request if ($Method -match "PATCH") { $params += @{ 'Method' = "PATCH" 'ContentType' = "application/json" } } else { $params += @{ 'Method' = "post" 'ContentType' = "application/x-www-form-urlencoded"; } } $params += @{ 'Body' = $Body; 'Websession' = $Websession; 'Headers' = $Headers; } } if ($PSVersionTable.Contains("platform") -and ($PSVersionTable.Platform -match "Unix") -and (Get-Variable -Name GRRIgnoreCertificateErrors -ErrorAction SilentlyContinue -valueonly)) { $params += @{ 'SkipCertificateCheck' = $true; } } try { $ret = Invoke-RestMethod @params } catch { # todo display error message $ErrorMessage = $_.Exception.Message Write-Error $ErrorMessage } if ($ret) { if ($ShowJSON) { $ret } else { $ret.Substring(5) | ConvertFrom-Json } } } # Variable $GRRUrl set else { Write-Error $ErrorMessageMissingConfiguration } Write-Verbose "$Function Leaving $Function" } # Invoke-GRRRequest function ConvertFrom-Base64 () { param( [Parameter(ValueFromPipeline=$True, Mandatory=$true)] [string] $String ) Process { [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($String)) } } # ConvertFrom-Base64 function Set-NewVariable() { param ( $Parameters ) #This standard block of code loops through bound parameters... #If no corresponding variable exists, one is created #Get common parameters, pick out bound parameters not in that set Function _temp { [cmdletbinding()] param() } $BoundKeys = $Parameters.keys | Where-Object { (get-command _temp | select-object -ExpandProperty parameters).Keys -notcontains $_} foreach($param in $BoundKeys) { if (!( Get-Variable -name $param -scope 1 -ErrorAction SilentlyContinue -valueonly) ) { New-Variable -Name $Param -Value $Parameters.$param Write-Verbose "Adding variable for dynamic parameter '$param' with value '$($Parameters.$param)'" } } } # Source: https://github.com/RamblingCookieMonster/PowerShell/blob/master/New-DynamicParam.ps1 Function New-DynamicParam () { param( [string] $Name, [System.Type] $Type = [string], [string[]] $Alias = @(), [string[]] $ValidateSet, [switch] $Mandatory, [string] $ParameterSetName="__AllParameterSets", [int] $Position, [switch] $ValueFromPipelineByPropertyName, [string] $HelpMessage, [validatescript({ if(-not ( $_ -is [System.Management.Automation.RuntimeDefinedParameterDictionary] -or -not $_) ) { Throw "DPDictionary must be a System.Management.Automation.RuntimeDefinedParameterDictionary object, or not exist" } $True })] $DPDictionary = $false ) #Create attribute object, add attributes, add to collection $ParamAttr = New-Object System.Management.Automation.ParameterAttribute $ParamAttr.ParameterSetName = $ParameterSetName if($Mandatory) { $ParamAttr.Mandatory = $True } if($Position -ne $null) { $ParamAttr.Position=$Position } if($ValueFromPipelineByPropertyName) { $ParamAttr.ValueFromPipelineByPropertyName = $True } if($HelpMessage) { $ParamAttr.HelpMessage = $HelpMessage } $AttributeCollection = New-Object -type System.Collections.ObjectModel.Collection[System.Attribute] $AttributeCollection.Add($ParamAttr) #param validation set if specified if($ValidateSet) { $ParamOptions = New-Object System.Management.Automation.ValidateSetAttribute -ArgumentList $ValidateSet $AttributeCollection.Add($ParamOptions) } #Aliases if specified if($Alias.count -gt 0) { $ParamAlias = New-Object System.Management.Automation.AliasAttribute -ArgumentList $Alias $AttributeCollection.Add($ParamAlias) } #Create the dynamic parameter $Parameter = New-Object -TypeName System.Management.Automation.RuntimeDefinedParameter -ArgumentList @($Name, $Type, $AttributeCollection) #Add the dynamic parameter to an existing dynamic parameter dictionary, or create the dictionary and add it if($DPDictionary) { $DPDictionary.Add($Name, $Parameter) } else { $Dictionary = New-Object System.Management.Automation.RuntimeDefinedParameterDictionary $Dictionary.Add($Name, $Parameter) $Dictionary } } Function Get-GRRConfig() { $Config = New-Object PSObject $Value = "" $params = @{ 'InputObject' = $Config; 'MemberType' = 'NoteProperty'; 'Name' = "ConfigFile"; 'Value' = $ConfigFile } add-member @params if (get-variable -name GRRUrl -ErrorAction SilentlyContinue -scope 1 -valueonly) { $Value = $GRRUrl } else { $Value = "none" } $params = @{ 'InputObject' = $Config; 'MemberType' = 'NoteProperty'; 'Name' = "GRRUrl"; 'Value' = $Value } add-member @params if (get-variable -name GRRIgnoreCertificateErrors -ErrorAction SilentlyContinue -scope 1 -valueonly) { $Value = $GRRIgnoreCertificateErrors } else { $Value = "false (default)" } $params = @{ 'InputObject' = $Config; 'MemberType' = 'NoteProperty'; 'Name' = "GRRIgnoreCertificateErrors"; 'Value' = $Value } add-member @params if (get-variable -name GRRClientCertIssuer -ErrorAction SilentlyContinue -scope 1 -valueonly) { $Value = $GRRClientCertIssuer } else { $Value = "none (default)" } $params = @{ 'InputObject' = $Config; 'MemberType' = 'NoteProperty'; 'Name' = "GRRClientCertIssuer"; 'Value' = $Value } add-member @params $Config } #endregion #region INITIALIZATION # Module path for all functions $ModuleRoot = $PSScriptRoot Remove-Variable GRRClientCertIssuer -ErrorAction SilentlyContinue Remove-Variable GRRIgnoreCertificateErrors -ErrorAction SilentlyContinue Remove-Variable GRRUrl -ErrorAction SilentlyContinue # Read config from file and set variables as needed $ConfigFile = "" if (Test-Path "$ModuleRoot\$ConfigFileName") { $ConfigFile = "$ModuleRoot\$ConfigFileName" . $ConfigFile } elseif ($PSVersionTable.Contains("platform") -and ($PSVersionTable.Platform -match "Unix") -and (Test-Path "$env:HOME\$ConfigFileName")) { $ConfigFile = "$env:HOME\$ConfigFileName" . $ConfigFile } elseif (Test-Path "$env:USERPROFILE\$ConfigFileName") { $ConfigFile = "$env:USERPROFILE\$ConfigFileName" . $ConfigFile } else { throw $ErrorMessageMissingConfiguration } if (!(get-variable -name GRRUrl -scope 0 -ErrorAction SilentlyContinue -valueonly)) { throw "Set `$GRRUrl within the config file: $ConfigFile." } write-host "Using $($GRRUrl) for the GRR URL." # Add type for ignoring certificate warnings for Windows # This is not available in macOS or Linux # Use switch param "-SkipCertificateCheck" in Invoke-WebRequest and Invoke-RestMethod # See https://github.com/PowerShell/PowerShell/issues/1945 if (($PSVersionTable.PSVersion.Major -lt 6) -or ($PSVersionTable.Contains("platform") -and ($PSVersionTable.Platform -notmatch "Unix"))) { add-type @" using System.Net; using System.Security.Cryptography.X509Certificates; public class TrustAllCertsPolicy : ICertificatePolicy { public bool CheckValidationResult( ServicePoint srvPoint, X509Certificate certificate, WebRequest request, int certificateProblem) { return true; } } "@ if (Get-Variable -Name GRRIgnoreCertificateErrors -ErrorAction SilentlyContinue -valueonly) { [System.Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy } # Adjust the protocols, otherwise the API will reject connections $AllProtocols = [System.Net.SecurityProtocolType]'Ssl3,Tls,Tls11,Tls12' [System.Net.ServicePointManager]::SecurityProtocol = $AllProtocols } #endregion Export-ModuleMember @( 'Get-GRRHuntResult', 'Get-GRRHuntInfo', 'Find-GRRClient', 'Find-GRRClientByLabel', 'Get-GRRComputerNameFromClientId', 'Get-GRRClientIdFromComputerName', 'Set-GRRLabel', 'Remove-GRRLabel', 'Invoke-GRRFlow', 'Get-GRRLabel', 'Get-GRRHunt', 'Get-GRRFlowResult', 'ConvertFrom-Base64', 'Invoke-GRRRequest', 'Get-GRRSession', 'New-GRRHunt', 'Start-GRRHunt', 'Stop-GRRHunt', 'New-GRRHuntApproval', 'New-GRRClientApproval', 'Get-GRRFlowDescriptor', 'Get-GRRArtifact', 'Get-GRRConfig' ) #endregion |