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
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1070.002/T1070.002.md
logsource:
    product: macos
detection:
    selection:
        CommandLine|contains:
            - 'rm -rf /var/log'
            - 'rm -rf /private/var/log'
            - 'rm -rf /Users/*/Library/Logs/'
    condition: selection
falsepositives:
    - Legitimate administration activities
    - Redirecting output of echo command to a path that contains the word "cron"
level: low
tags:
    - attack.defense_evasion
    - attack.t1070.002