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Cloudtrail change destination bucket

Author Last Update
Nick Jones 2020-06-18

Alter cloudtrail log destination to a bucket that target does not have access to

MITRE IDs

Required Permissions

  • cloudtrail:UpdateTrail

Required Parameters

Name Type Description Example Value
trailname str Name of the cloudtrail to be targeted example-cloudtrail
bucketname str Name of S3 bucket to redirect logs to example-bucket

Attacker Action

aws cloudtrail update-trail --name example-cloudtrail --s3-bucket-name example-bucket

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 change destination bucket
id: 9be7e8b4-dd76-4396-b3ca-10c6d8df1048
status: experimental
author: Nick Jones
date: 2020-06-18
description: Alter cloudtrail log destination to a bucket that target does not have access to
logsource:
  service: cloudtrail
detection:
  selection_source:
    - eventSource: "*.cloudtrail.amazonaws.com"
  events:
    - eventName: "UpdateTrail"
  condition: selection_source AND events
level: low
tags:
  - attack.t1089