{"id":"676381a6-15ca-4d73-a9c8-6a22e970b90d","title":"Local Groups Discovery - Linux","description":"Detects enumeration of local system groups. Adversaries may attempt to find local system groups and permission settings","author":"Ömer Günal, Alejandro Ortuno, oscd.community","status":"test","level":"low","date":"2020-10-11","modified":"2025-06-04","tags":["attack.discovery","attack.t1069.001"],"technique_ids":["T1069.001"],"logsource":{"category":"process_creation","product":"linux"},"falsepositives":["Legitimate administration activities"],"references":["https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1069.001/T1069.001.md"],"source_path":"rules/linux/process_creation/proc_creation_lnx_local_groups.yml","source_sha256":"82ebbe2ee4d7f5dc230b32975a007f6e2a96e00d880dc3bdddfbb6edbe3c31fb","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/linux/process_creation/proc_creation_lnx_local_groups.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Local Groups Discovery - Linux\nid: 676381a6-15ca-4d73-a9c8-6a22e970b90d\nstatus: test\ndescription: Detects enumeration of local system groups. Adversaries may attempt to find local system groups and permission settings\nreferences:\n    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1069.001/T1069.001.md\nauthor: Ömer Günal, Alejandro Ortuno, oscd.community\ndate: 2020-10-11\nmodified: 2025-06-04\ntags:\n    - attack.discovery\n    - attack.t1069.001\nlogsource:\n    category: process_creation\n    product: linux\ndetection:\n    selection_1:\n        Image|endswith: '/groups'\n    selection_2:\n        Image|endswith:\n            - '/cat'\n            - '/ed'\n            - '/head'\n            - '/less'\n            - '/more'\n            - '/nano'\n            - '/tail'\n            - '/vi'\n            - '/vim'\n        CommandLine|contains: '/etc/group'\n    condition: 1 of selection_*\nfalsepositives:\n    - Legitimate administration activities\nlevel: low\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1069.001","id":"T1069.001","name":"Local Groups","page":"techniques/enterprise/T1069.001/"}],"data_path":"data/detection-rules/676381a6-15ca-4d73-a9c8-6a22e970b90d.json","kind":"sigma"}