AWS CloudTrail Important Change — Sigma Rule

Rule metadata and linked tags

Author: vitaliy0x1. Source status: test; severity: medium. Source dates: 2020-01-21 / 2022-10-09.

{
  "product": "aws",
  "service": "cloudtrail"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 3eb82f86bbab060a5d8c971e30580894a3f9ef016438dd42f7aca68c2ee2b6b5

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: AWS CloudTrail Important Change
id: 4db60cc0-36fb-42b7-9b58-a5b53019fb74
status: test
description: Detects disabling, deleting and updating of a Trail
references:
    - https://docs.aws.amazon.com/awscloudtrail/latest/userguide/best-practices-security.html
author: vitaliy0x1
date: 2020-01-21
modified: 2022-10-09
tags:
    - attack.defense-impairment
    - attack.t1685.002
logsource:
    product: aws
    service: cloudtrail
detection:
    selection_source:
        eventSource: cloudtrail.amazonaws.com
        eventName:
            - StopLogging
            - UpdateTrail
            - DeleteTrail
    condition: selection_source
falsepositives:
    - Valid change in a Trail
level: medium

Original YAML and metadata in JSON

False positives

• Valid change in a Trail

Source references

• https://docs.aws.amazon.com/awscloudtrail/latest/userguide/best-practices-security.html