Setuid and Setgid

 1title: Setuid and Setgid
 2id: c21c4eaa-ba2e-419a-92b2-8371703cbe21
 3status: test
 4description: Detects suspicious change of file privileges with chown and chmod commands
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1548.001/T1548.001.md
 7author: Ömer Günal
 8date: 2020-06-16
 9modified: 2022-10-05
10tags:
11    - attack.defense-evasion
12    - attack.persistence
13    - attack.privilege-escalation
14    - attack.t1548.001
15logsource:
16    product: linux
17    category: process_creation
18detection:
19    selection_root:
20        CommandLine|contains: 'chown root'
21    selection_perm:
22        CommandLine|contains:
23            - ' chmod u+s'
24            - ' chmod g+s'
25    condition: all of selection_*
26falsepositives:
27    - Legitimate administration activities
28level: low