Elastic Security Detection Rules

AWS KMS Customer Managed Key Disabled or Scheduled for Deletion

Last updated 5 months ago on 2025-01-15
Created 3 years ago on 2022-09-21

About

Identifies attempts to disable or schedule the deletion of an AWS KMS Customer Managed Key (CMK). Deleting an AWS KMS key is destructive and potentially dangerous. It deletes the key material and all metadata associated with the KMS key and is irreversible. After a KMS key is deleted, the data that was encrypted under that KMS key can no longer be decrypted, which means that data becomes unrecoverable.
Tags
Domain: CloudData Source: AWSData Source: Amazon Web ServicesData Source: AWS KMSUse Case: Log AuditingTactic: ImpactLanguage: kuery
Severity
medium
Risk Score
47
MITRE ATT&CK™

Impact (TA0040)(opens in a new tab or window)

↳ Data Destruction (T1485)(opens in a new tab or window)

False Positive Examples
A KMS customer managed key may be disabled or scheduled for deletion by a system administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment. Key deletions by unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Query (Kibana Query Language)
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
filebeat-*logs-aws.cloudtrail-*
Related Integrations

aws(opens in a new tab or window)

Query
event.dataset:aws.cloudtrail and event.provider:kms.amazonaws.com and event.action:("DisableKey" or "ScheduleKeyDeletion") and event.outcome:success

Install detection rules in Elastic Security

Detect AWS KMS Customer Managed Key Disabled or Scheduled for Deletion in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).