Possible Crontab Enumeration (via process_creation)

title: Possible Crontab Enumeration (via process_creation)
id: 4159fd5f-6277-5393-a3b7-6e574794f25f
status: stable
description: This rule detects use of crontab to list the tasks of the user
references:
    - https://attack.mitre.org/techniques/T1007/
    - 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: Huntrule Team
date: 2026-01-05
tags:
    - attack.discovery
    - attack.t1007
logsource:
    product: linux
    category: process_creation
detection:
    selection:
        Image|endswith: '/crontab'
        CommandLine|contains: ' -l'
    condition: selection
falsepositives:
    - Unknown
level: low