Install Root Certificate

 Original Source: [Sigma source]
Title: Install Root Certificate
Status: test
Description:Detects installation of new certificate on the system which attackers may use to avoid warnings when connecting to controlled web servers or C2s
References:
  -https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1553.004/T1553.004.md
Author: Ömer Günal, oscd.community
Date: 2020-10-05
modified:2022-07-07
Tags:
  • -'attack.defense-impairment'
  • -'attack.t1553.004'
Logsource:
  • product: linux
  • category: process_creation
Detection:
  selection:
    Image|endswith:
      -'/update-ca-certificates'
      -'/update-ca-trust'

  condition:selection
Falsepositives:
  -Legitimate administration activities
Level: low