Local Groups Discovery - Linux

 1title: Local Groups Discovery - Linux
 2id: 676381a6-15ca-4d73-a9c8-6a22e970b90d
 3status: test
 4description: Detects enumeration of local system groups. Adversaries may attempt to find local system groups and permission settings
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1069.001/T1069.001.md
 7author: Ömer Günal, Alejandro Ortuno, oscd.community
 8date: 2020/10/11
 9modified: 2022/11/27
10tags:
11    - attack.discovery
12    - attack.t1069.001
13logsource:
14    category: process_creation
15    product: linux
16detection:
17    selection_1:
18        Image|endswith: '/groups'
19    selection_2:
20        Image|endswith:
21            - '/cat'
22            - '/head'
23            - '/tail'
24            - '/more'
25        CommandLine|contains: '/etc/group'
26    condition: 1 of selection*
27falsepositives:
28    - Legitimate administration activities
29level: low