Crontab Enumeration

Title: Crontab Enumeration
Status: test
Description:Detects usage of crontab to list the tasks of the user
References:
  -https://blogs.jpcert.or.jp/en/2023/05/gobrat.html
  -https://jstnk9.github.io/jstnk9/research/GobRAT-Malware/
  -https://www.virustotal.com/gui/file/60bcd645450e4c846238cf0e7226dc40c84c96eba99f6b2cffcd0ab4a391c8b3/detection
  -https://www.virustotal.com/gui/file/3e44c807a25a56f4068b5b8186eee5002eed6f26d665a8b791c472ad154585d1/detection
Author: Joseliyo Sanchez, @Joseliyo_Jstnk
Date: 2023-06-02
modified:None
Tags:

• -'attack.discovery'
• -'attack.t1007'

Logsource:

• product: linux
• category: process_creation

Detection:
  selection:
    Image|endswith: '/crontab'
    CommandLine|contains: ' -l'
  condition:selection
Falsepositives:
  -Legitimate use of crontab
Level: low