SigmaHQ/rules/linux/macos_clear_system_logs.yml

title: Indicator Removal on Host - Clear Mac System Logs
id: acf61bd8-d814-4272-81f0-a7a269aa69aa
status: experimental
description: Detects deletion of local audit logs
author: remotephone, oscd.community
date: 2020/10/11
modified: 2021/08/14
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1070.002/T1070.002.md
logsource:
    product: macos
    category: process_creation
detection:
    selection1:
        Image|endswith: '/rm'
    selection2:
        CommandLine|contains: '/var/log'
    selection3:
        Commandline|contains|all:
            - '/Users/'
            - '/Library/Logs/'
    condition: selection1 and (selection2 or selection3)
falsepositives:
    - Legitimate administration activities
level: medium
tags:
    - attack.defense_evasion
    - attack.t1070.002