LoFP / eventbridge rules could be deleted or disabled by a system administrator. verify whether the user identity, user agent, and/or hostname should be making changes in your environment. eventbridge rules being deleted or disabled by unfamiliar users should be investigated. if known behavior is causing false positives, it can be exempted from the rule.

Techniques

• T1489

Sample rules

AWS EventBridge Rule Disabled or Deleted

• source: elastic
• technicques:
  • T1489

Description

Identifies when a user has disabled or deleted an EventBridge rule. This activity can result in an unintended loss of visibility in applications or a break in the flow with other AWS services.

Detection logic

event.dataset:aws.cloudtrail and event.provider:eventbridge.amazonaws.com and event.action:(DeleteRule or DisableRule) and
event.outcome:success