Classification:

attack

Tactic:

TA0005-defense-evasion

Technique:

T1562-impair-defenses

VIEW RULE IN DATADOG VIEW SIGNALS

Goal

Detect when a CloudWatch Log Group is deleted.

Strategy

Detect a successful @evt.name:DeleteLogGroup event.

Triage and response

1. Ensure that the {{@requestParameters.logGroupName}} log group is not used for auditing or security purposes.
2. If it is then:
   • Ensure that the user: {{@userIdentity.session_name}} should be making this API call to your {{env}} environment.
   • Consider adding to the allowlist the log group name: {{@requestParameters.logGroupName}} through a suppression list.
3. If not, begin your company’s IR process and investigate.

Changelog

11 October 2022 - updated severity.