AWS EventBridge Rule Disabled or Deleted

Elastic Stack Serverless Security

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.

Rule type: query

Rule indices:

• filebeat-*
• logs-aws*

Severity: low

Risk score: 21

Runs every: 5m

Searches indices from: now-20m (https://www.elastic.co/guide/en/elasticsearch/reference/current/common-options.html#date-math[Date Math format], see also Additional look-back time)

Maximum alerts per execution: 100

References:

• https://docs.aws.amazon.com/eventbridge/latest/APIReference/API_DeleteRule.html
• https://docs.aws.amazon.com/eventbridge/latest/APIReference/API_DisableRule.html

Tags:

• Elastic
• Cloud
• AWS
• Continuous Monitoring
• SecOps
• Monitoring

Version: 2

Rule authors:

• Austin Songer

Rule license: Elastic License v2

The AWS Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.

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

Framework: MITRE ATT&CKTM

• Tactic:

  • Name: Impact
  • ID: TA0040
  • Reference URL: https://attack.mitre.org/tactics/TA0040/