Active Directory Group Enumeration With Get-AdGroup — Sigma Rule

Rule metadata and linked tags

Author: frack113. Source status: test; severity: low. Source dates: 2022-03-17 / 2022-11-17.

{
  "product": "windows",
  "category": "ps_script",
  "definition": "Requirements: Script Block Logging must be enabled"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 76606aa13365dd7d2abb98d284f51e9fa6926d437bb1adb51b1dc19d351cf781

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Active Directory Group Enumeration With Get-AdGroup
id: 8c3a6607-b7dc-4f0d-a646-ef38c00b76ee
status: test
description: Detects usage of the "Get-AdGroup" cmdlet to enumerate Groups within Active Directory
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1018/T1018.md
author: frack113
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

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1018/T1018.md