EventLog/Get-SysmonFileTime.ps1
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function Get-SysmonFileTime { <# .SYNOPSIS Get Sysmon File Creation Time events (EventId 2). .DESCRIPTION The change file creation time event is registered when a file creation time is explicitly modified by a process. This event helps tracking the real creation time of a file. Attackers may change the file creation time of a backdoor to make it look like it was installed with the operating system. Note that many processes legitimately change the creation time of a file; it does not necessarily indicate malicious activity. .EXAMPLE PS C:\> Get-SysmonFileTime -Image 'C:\Program Files (x86)\Google\Chrome\Application\chrome.exe','C:\Windows\System32\RuntimeBroker.exe' -Suppress Get all events where neither Chrome ot RuntimeBroker changed the creation time of an event. .INPUTS System.IO.FileInfo .OUTPUTS Sysmon.EventRecord.FileCreateTime .NOTES https://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=90002 #> [CmdletBinding(DefaultParameterSetName = 'Local')] param ( # Log name for where the events are stored. [Parameter(Mandatory = $false, ValueFromPipelineByPropertyName = $true)] [string] $LogName = 'Microsoft-Windows-Sysmon/Operational', # The GUID of the process that is making the file time change. [Parameter(Mandatory = $false, ValueFromPipelineByPropertyName = $true)] [string[]] $ProcessGuid, # The Id of the process that is making the file creation timestamp change. [Parameter(Mandatory = $false, ValueFromPipelineByPropertyName = $true)] [string[]] $ProcessId, # Full path of the process image that is making the file creation timestamp change [Parameter(Mandatory = $false, ValueFromPipelineByPropertyName = $true)] [string[]] $Image, # File whose time creation timestamp is being modified. [Parameter(Mandatory = $false, ValueFromPipelineByPropertyName = $true)] [string[]] $TargetFileName, # Rule Name for filter that generated the event. [Parameter(Mandatory = $false, ValueFromPipelineByPropertyName = $true)] [string[]] $RuleName, # Specifies the path to the event log files that this cmdlet get events from. Enter the paths to the log files in a comma-separated list, or use wildcard characters to create file path patterns. Function supports files with the .evtx file name extension. You can include events from different files and file types in the same command. [Parameter(Mandatory=$true, Position=0, ParameterSetName="file", ValueFromPipelineByPropertyName=$true)] [Alias("FullName")] [ValidateNotNullOrEmpty()] [SupportsWildcards()] [string[]] $Path, # Gets events from the event logs on the specified computer. Type the NetBIOS name, an Internet Protocol (IP) address, or the fully qualified domain name of the computer. # The default value is the local computer. # To get events and event logs from remote computers, the firewall port for the event log service must be configured to allow remote access. [Parameter(Mandatory = $true, ValueFromPipelineByPropertyName = $true, ParameterSetName = 'Remote')] [string[]] $ComputerName, # Specifies a user account that has permission to perform this action. # # Type a user name, such as User01 or Domain01\User01. Or, enter a PSCredential object, such as one generated by the Get-Credential cmdlet. If you type a user name, you will # be prompted for a password. If you type only the parameter name, you will be prompted for both a user name and a password. [Parameter(Mandatory = $false, ParameterSetName = 'Remote')] [Management.Automation.PSCredential] [Management.Automation.CredentialAttribute()] $Credential, # Specifies the maximum number of events that are returned. Enter an integer. The default is to return all the events in the logs or files. [Parameter(Mandatory = $false, ValueFromPipelineByPropertyName = $true)] [int64] $MaxEvents, # Stsrttime from where to pull events. [Parameter(Mandatory = $false)] [datetime] $StartTime, # Stsrttime from where to pull events. [Parameter(Mandatory = $false)] [datetime] $EndTime, # Changes the default logic for matching fields from 'and' to 'or'. [Parameter(Mandatory = $false)] [switch] $ChangeLogic, # Changes the query action from inclusion to exclusion when fields are matched. [Parameter(Mandatory = $false)] [switch] $Suppress ) begin {} process { Search-SysmonEvent -EventId 2 -ParamHash $MyInvocation.BoundParameters } end {} } |