blue-team-tools/rules/linux/process_creation/proc_creation_lnx_cat_sudoers.yml

title: Cat Sudoers
id: 0f79c4d2-4e1f-4683-9c36-b5469a665e06
status: test
description: Detects the execution of a cat /etc/sudoers to list all users that have sudo rights
references:
    - https://github.com/sleventyeleven/linuxprivchecker/
author: Florian Roth (Nextron Systems)
date: 2022/06/20
modified: 2022/09/15
tags:
    - attack.reconnaissance
    - attack.t1592.004
logsource:
    category: process_creation
    product: linux
detection:
    selection:
        Image|endswith:
            - '/cat'
            - 'grep'
            - '/head'
            - '/tail'
            - '/more'
        CommandLine|contains: ' /etc/sudoers'
    condition: selection
falsepositives:
    - Legitimate administration activities
level: medium