{"id":"48a45d45-8112-416b-8a67-46e03a4b2107","title":"Remove Account From Domain Admin Group","description":"Adversaries may interrupt availability of system and network resources by inhibiting access to accounts utilized by legitimate users.\nAccounts may be deleted, locked, or manipulated (ex: changed credentials) to remove access to accounts.\n","author":"frack113","status":"test","level":"medium","date":"2021-12-26","modified":"","tags":["attack.impact","attack.t1531"],"technique_ids":["T1531"],"logsource":{"product":"windows","category":"ps_script","definition":"Requirements: Script Block Logging must be enabled"},"falsepositives":["Unknown"],"references":["https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1531/T1531.md#atomic-test-3---remove-account-from-domain-admin-group"],"source_path":"rules/windows/powershell/powershell_script/posh_ps_susp_remove_adgroupmember.yml","source_sha256":"039c163fba574393f59442fb4cf8ed69c539e12931378df6fc09d11fd835f7f2","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/powershell/powershell_script/posh_ps_susp_remove_adgroupmember.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Remove Account From Domain Admin Group\nid: 48a45d45-8112-416b-8a67-46e03a4b2107\nstatus: test\ndescription: |\n    Adversaries may interrupt availability of system and network resources by inhibiting access to accounts utilized by legitimate users.\n    Accounts may be deleted, locked, or manipulated (ex: changed credentials) to remove access to accounts.\nreferences:\n    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1531/T1531.md#atomic-test-3---remove-account-from-domain-admin-group\nauthor: frack113\ndate: 2021-12-26\ntags:\n    - attack.impact\n    - attack.t1531\nlogsource:\n    product: windows\n    category: ps_script\n    definition: 'Requirements: Script Block Logging must be enabled'\ndetection:\n    selection:\n        ScriptBlockText|contains|all:\n            - 'Remove-ADGroupMember'\n            - '-Identity '\n            - '-Members '\n    condition: selection\nfalsepositives:\n    - Unknown\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1531","id":"T1531","name":"Account Access Removal","page":"techniques/enterprise/T1531/"}],"data_path":"data/detection-rules/48a45d45-8112-416b-8a67-46e03a4b2107.json","kind":"sigma"}