Possible PowerShell Script Change Permission Through Set-Acl - PsScript (via ps_script)
This rule detects PowerShell scripts set ACL to of a file or a folder
SigmalowWindowsv1
sigma
possible-powershell-script-change-permission-through-set-acl-psscript-via-ps-script
title: Possible PowerShell Script Change Permission Through Set-Acl - PsScript (via ps_script)
id: b58e6bc2-e730-5cb3-8ef2-b7a50d7dcd02
status: stable
description: This rule detects PowerShell scripts set ACL to of a file or a folder
references:
- https://attack.mitre.org/techniques/T1222/
- https://github.com/redcanaryco/atomic-red-team/blob/74438b0237d141ee9c99747976447dc884cb1a39/atomics/T1505.005/T1505.005.md
author: Huntrule Team
date: 2026-02-11
tags:
- attack.defense-impairment
- attack.t1222
logsource:
product: windows
category: ps_script
definition: bade5735-5ab0-4aa7-a642-a11be0e40872
detection:
selection:
ScriptBlockText|contains|all:
- 'Set-Acl '
- '-AclObject '
- '-Path '
condition: selection
falsepositives:
- Unknown
level: low
Known false positives
- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.