EventLog/Get-SysmonAccessMask.ps1
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function Get-SysmonAccessMask { <# .SYNOPSIS Get the list of privileges for a given Sysmon Process Access Mask or get a mask for a given list. .DESCRIPTION Get the list of privileges for a given Sysmon Process Access Mask or get a mask for a given list. .EXAMPLE PS C:\> Get-SysmonAccessMask -AccessMask 0x418 PROCESS_QUERY_INFORMATION PROCESS_VM_OPERATION PROCESS_VM_READ For a given access mask return a list of access rights. .EXAMPLE PS C:\> Get-SysmonAccessMask -AccessRight PROCESS_VM_READ,PROCESS_VM_OPERATION,PROCESS_QUERY_INFORMATION 0x418 For a list of access rights return an access mask for use in Sysmon filtering. .INPUTS Inputs (if any) .OUTPUTS String String[] .NOTES General notes #> [CmdletBinding(DefaultParameterSetName = 'Mask')] param ( # Acces mask names. [Parameter(Mandatory=$true, ParameterSetName='Access')] [ValidateSet("PROCESS_CREATE_PROCESS", "PROCESS_CREATE_THREAD", "PROCESS_DUP_HANDLE","PROCESS_SET_INFORMATION", "PROCESS_SET_QUOTA", "PROCESS_QUERY_LIMITED_INFORMATION", "PROCESS_QUERY_INFORMATION", "PROCESS_SUSPEND_RESUME", "PROCESS_TERMINATE", "PROCESS_VM_OPERATION", "PROCESS_VM_READ", "PROCESS_VM_WRITE", "SYNCHRONIZE", "PROCESS_SET_LIMITED_INFORMATION")] [string[]] $AccessRight, # Access mask [Parameter(Mandatory = $true, ParameterSetName = 'Mask')] [Int32] $AccessMask ) begin { $ProcessPermissions = @{ "PROCESS_CREATE_PROCESS" = 0x0080 "PROCESS_CREATE_THREAD" = 0x0002 "PROCESS_DUP_HANDLE" = 0x0040 "PROCESS_SET_INFORMATION" = 0x0200 "PROCESS_SET_QUOTA" = 0x0100 "PROCESS_QUERY_LIMITED_INFORMATION" = 0x1000 "PROCESS_QUERY_INFORMATION" = 0x0400 "PROCESS_SUSPEND_RESUME" = 0x0800 "PROCESS_TERMINATE" = 0x0001 "PROCESS_VM_OPERATION" = 0x0008 "PROCESS_VM_READ" = 0x0010 "PROCESS_VM_WRITE" = 0x0020 "SYNCHRONIZE" = 0x00100000 "PROCESS_SET_LIMITED_INFORMATION" = 0x2000 } } process { switch ($pscmdlet.ParameterSetName) { 'Mask' { $mask_values = @() foreach($m in $ProcessPermissions.keys){ if($ProcessPermissions[$m] -band $AccessMask){ $mask_values += $m } } $mask_values } 'Access' { $mask = 0 foreach($access in $AccessRight) { $mask = $mask -bor $ProcessPermissions[$access] } "0x$([Convert]::ToString($mask, 16))" } } } end { } } |