Sigma rule: PowerShell Script Change Permission Via Set-Acl - PsScript

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-4894eb7fc8ed, updated 2023-07-18T00:00:00.000Z.

Rule

Title: PowerShell Script Change Permission Via Set-Acl - PsScript
Status: test
Level: low
Author: frack113, Nasreddine Bencherchali (Nextron Systems)
Date: 2023-07-18
File: rules/windows/powershell/powershell_script/posh_ps_set_acl.yml
Commit: ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects PowerShell scripts set ACL to of a file or a folder

Log source

product: windows
category: ps_script
definition: bade5735-5ab0-4aa7-a642-a11be0e40872

Detection

selection:
    ScriptBlockText|contains|all:
        - 'Set-Acl '
        - '-AclObject '
        - '-Path '
condition: selection

False positives (as the rule lists them)

Unknown

MITRE ATT&CK ids this rule names

T1222

Related rules

References

https://github.com/redcanaryco/atomic-red-team/blob/74438b0237d141ee9c99747976447dc884cb1a39/atomics/T1505.005/T1505.005.md

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/powershell/powershell_script/posh_ps_set_acl.yml

Sources and licences

SigmaHQ
"PowerShell Script Change Permission Via Set-Acl - PsScript" by frack113, Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/powershell/powershell_script/posh_ps_set_acl.yml.
Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License
Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: PowerShell Script Change Permission Via Set-Acl - PsScript",
entity page, dataset version ref-4894eb7fc8ed, updated 2023-07-18T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/cae80281-ef23-44c5-873b-fd48d2666f49 (accessed 2026-11-03).
Underlying source: SigmaHQ rule cae80281-ef23-44c5-873b-fd48d2666f49, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.