LoFP / the guardduty detector may be deleted by a system or network administrator. verify whether the user identity, user agent, and/or hostname should be making changes in your environment. detector deletions by unfamiliar users or hosts should be investigated. if known behavior is causing false positives, it can be exempted from the rule.

Techniques

• T1562

Sample rules

AWS GuardDuty Detector Deletion

• source: elastic
• technicques:
  • T1562

Description

Identifies the deletion of an Amazon GuardDuty detector. Upon deletion, GuardDuty stops monitoring the environment and all existing findings are lost.

Detection logic

event.dataset:aws.cloudtrail and event.provider:guardduty.amazonaws.com and event.action:DeleteDetector and event.outcome:success