Group Has Been Deleted Via Groupdel

calendar Nov 2, 2023 · attack.impact attack.t1531  ·
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Detects execution of the "groupdel" binary. Which is used to delete a group. This is sometimes abused by threat actors in order to cover their tracks

Sigma rule (View on GitHub)

 1title: Group Has Been Deleted Via Groupdel
 2id: 8a46f16c-8c4c-82d1-b121-0fdd3ba70a84
 3status: test
 4description: Detects execution of the "groupdel" binary. Which is used to delete a group. This is sometimes abused by threat actors in order to cover their tracks
 5references:
 6    - https://linuxize.com/post/how-to-delete-group-in-linux/
 7    - https://www.cyberciti.biz/faq/linux-remove-user-command/
 8    - https://www.cybrary.it/blog/0p3n/linux-commands-used-attackers/
 9    - https://linux.die.net/man/8/groupdel
10author: Tuan Le (NCSGroup)
11date: 2022/12/26
12tags:
13    - attack.impact
14    - attack.t1531
15logsource:
16    product: linux
17    category: process_creation
18detection:
19    selection:
20        Image|endswith: '/groupdel'
21    condition: selection
22falsepositives:
23    - Legitimate administrator activities
24level: medium

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