Windows PowerShell Active Directory Group Enumeration via Get-AdGroup Cmdlet

Flags PowerShell script blocks that call Get-ADGroup with -Filter to enumerate Active Directory groups.

FreeReviewedSigma · Low · v2
Product
windows
Category
ps_script
Author
frack113 (SigmaHQ), DRL 1.1
Published
2022-03-17
Updated
2026-07-31
title: Windows PowerShell Active Directory Group Enumeration via Get-AdGroup Cmdlet
id: 9e36ae21-6108-4132-8f74-505a44558d2b
status: test
description: This rule flags PowerShell activity that calls the Get-AdGroup cmdlet with a -Filter parameter, consistent with enumerating Active Directory groups. Attackers commonly use group enumeration to discover access pathways and identify targets for subsequent discovery or privilege escalation. The detection relies on PowerShell Script Block text telemetry (e.g., Script Block Logging) capturing the cmdlet invocation.
references:
  - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1018/T1018.md
  - https://github.com/SigmaHQ/sigma/blob/master/rules/windows/powershell/powershell_script/posh_ps_get_adgroup.yml
author: frack113, Huntrule Team
date: 2022-03-17
modified: 2022-11-17
tags:
  - attack.discovery
  - attack.t1069.002
logsource:
  product: windows
  category: ps_script
  definition: "Requirements: Script Block Logging must be enabled"
detection:
  selection:
    ScriptBlockText|contains|all:
      - "Get-AdGroup "
      - -Filter
  condition: selection
falsepositives:
  - Unknown
level: low
license: DRL-1.1
related:
  - id: 8c3a6607-b7dc-4f0d-a646-ef38c00b76ee
    type: derived