Indicator Removal on Host - Clear Mac System Logs

Title: Indicator Removal on Host - Clear Mac System Logs
Status: test
Description:Detects deletion of local audit logs
References:
  -https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1070.002/T1070.002.md
Author: remotephone, oscd.community
Date: 2020-10-11
modified:2022-09-16
Tags:

• -'attack.defense-impairment'
• -'attack.t1685.006'

Logsource:

• product: macos
• category: process_creation

Detection:
  selection1:
    Image|endswith:
      -'/rm'
      -'/unlink'
      -'/shred'

  selection_cli_1:
    CommandLine|contains: '/var/log'
  selection_cli_2:
    CommandLine|contains|all:
      -'/Users/'
      -'/Library/Logs/'

  condition:selection1 and 1 of selection_cli*
Falsepositives:
  -Legitimate administration activities
Level: medium