Modifying Crontab
Detects suspicious modification of crontab file.
Sigma rule (View on GitHub)
1title: Modifying Crontab
2id: af202fd3-7bff-4212-a25a-fb34606cfcbe
3status: test
4description: Detects suspicious modification of crontab file.
5references:
6 - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1053.003/T1053.003.md
7author: Pawel Mazur
8date: 2022-04-16
9tags:
10 - attack.persistence
11 - attack.t1053.003
12logsource:
13 product: linux
14 service: cron
15detection:
16 keywords:
17 - 'REPLACE'
18 condition: keywords
19falsepositives:
20 - Legitimate modification of crontab
21level: medium
References
Related rules
- Azure Kubernetes CronJob
- Persistence Via Cron Files
- Persistence Via Sudoers Files
- Scheduled Cron Task/Job - Linux
- Scheduled Cron Task/Job - MacOs