sigmaDRL-1.1from SigmaHQ/sigma

Remove Account From Domain Admin Group

Adversaries may interrupt availability of system and network resources by inhibiting access to accounts utilized by legitimate users. Accounts may be deleted, locked, or manipulated (ex: changed credentials) to remove access to accounts.

Quality

100

FP risk

—

Forks

Views

ATT&CK techniques

T1531

Rule sourcerules/windows/powershell/powershell_script/posh_ps_susp_remove_adgroupmember.yml

title: Remove Account From Domain Admin Group
id: 48a45d45-8112-416b-8a67-46e03a4b2107
status: test
description: |
    Adversaries may interrupt availability of system and network resources by inhibiting access to accounts utilized by legitimate users.
    Accounts may be deleted, locked, or manipulated (ex: changed credentials) to remove access to accounts.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1531/T1531.md#atomic-test-3---remove-account-from-domain-admin-group
author: frack113
date: 2021-12-26
tags:
    - attack.impact
    - attack.t1531
logsource:
    product: windows
    category: ps_script
    definition: 'Requirements: Script Block Logging must be enabled'
detection:
    selection:
        ScriptBlockText|contains|all:
            - 'Remove-ADGroupMember'
            - '-Identity '
            - '-Members '
    condition: selection
falsepositives:
    - Unknown
level: medium