Cloudtrail Disable Log File Validation (aws)

Platform	Author	Last Update
aws	Nick Jones	2024-12-02

An adversary may attempt to disable log file validation to enable them to tamper with the logs

MITRE IDs

T1562

Required Permissions

cloudtrail:UpdateTrail

Required Parameters

Name	Type	Description	Example Value
trailname	str	Name of the cloudtrail to be targeted	example-cloudtrail

Attacker Action

aws cloudtrail update-trail --name example-cloudtrail --no-enable-log-file-validation

Detection Case

ELK query

When logs are ingested into ELK, the following Lucene query can be used to identify relevant events.

eventName:UpdateTrail AND eventSource:*.cloudtrail.amazonaws.com

Sigma Definition

---
title: Cloudtrail disable log file validation
id: e0608025-7e8e-4b26-8ac8-e7711d3df52f
status: experimental
author: Nick Jones
date: 2024-12-02
description: An adversary may attempt to disable log file validation to enable them to tamper with the logs
logsource:
  service: cloudtrail
detection:
  selection_source:
    - eventSource: "*.cloudtrail.amazonaws.com"
  events:
    - eventName: "UpdateTrail"
  condition: selection_source and events
level: low
tags:
  - attack.T1562


falsepositives:
  - Developers making legitimate changes to the environment. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.