Functions/New-SysmonPipeFilter.ps1
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<#
.SYNOPSIS Create a new filter for when a Named Pipe is created or connected. .DESCRIPTION Create a new filter for when a Named Pipe is created or connected. Useful for watching malware inter process communication. #> function New-SysmonPipeFilter { [CmdletBinding(DefaultParameterSetName = 'Path', HelpUri = 'https://github.com/darkoperator/Posh-Sysmon/blob/master/docs/New-SysmonPipeFilter.md')] Param ( # Path to XML config file. [Parameter(Mandatory=$true, ValueFromPipelineByPropertyName=$true, ParameterSetName='Path', Position=0)] [ValidateScript({Test-Path -Path $_})] $Path, # Path to XML config file. [Parameter(Mandatory=$true, ValueFromPipelineByPropertyName=$true, ParameterSetName='LiteralPath', Position=0)] [ValidateScript({Test-Path -Path $_})] [Alias('PSPath')] $LiteralPath, # Event type on match action. [Parameter(Mandatory=$true, ValueFromPipelineByPropertyName=$true, Position=1)] [ValidateSet('include', 'exclude')] [string] $OnMatch, # Condition for filtering against and event field. [Parameter(Mandatory=$true, ValueFromPipelineByPropertyName=$true, Position=2)] [ValidateSet('Is', 'IsNot', 'Contains', 'Excludes', 'Image', 'BeginWith', 'EndWith', 'LessThan', 'MoreThan')] [string] $Condition, # Event field to filter on. [Parameter(Mandatory=$true, ValueFromPipelineByPropertyName=$true, Position=3)] [ValidateSet('Pipe', 'ProcessGuid', 'ProcessId', 'Image')] [string] $EventField, # Value of Event Field to filter on. [Parameter(Mandatory=$true, ValueFromPipelineByPropertyName=$true, Position=4)] [string[]] $Value, # Rule Name for the filter. [Parameter(Mandatory=$false, ValueFromPipelineByPropertyName=$true)] [string] $RuleName ) Begin {} Process { $FieldString = $MyInvocation.MyCommand.Module.PrivateData[$EventField] $cmdoptions = @{ 'EventType' = 'PipeEvent' 'Condition' = $Condition 'EventField' = $FieldString 'Value' = $Value 'OnMatch' = $OnMatch } if($RuleName) { $cmdoptions.Add('RuleName',$RuleName) } switch ($PSCmdlet.ParameterSetName) { 'Path' { $cmdOptions.Add('Path',$Path) New-RuleFilter @cmdOptions } 'LiteralPath' { $cmdOptions.Add('LiteralPath',$LiteralPath) New-RuleFilter @cmdOptions } } } End {} } |