AWS EKS Cluster Created or Deleted — Sigma Rule

Rule metadata and linked tags

Author: Austin Songer. Source status: test; severity: low. Source dates: 2021-08-16 / 2022-10-09.

{
  "product": "aws",
  "service": "cloudtrail"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 14feca5a239fb6ccf083ae7a8bf2ad68847565f8ebc192b3d037c5caca079a2f

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: AWS EKS Cluster Created or Deleted
id: 33d50d03-20ec-4b74-a74e-1e65a38af1c0
status: test
description: Identifies when an EKS cluster is created or deleted.
references:
    - https://any-api.com/amazonaws_com/eks/docs/API_Description
author: Austin Songer
date: 2021-08-16
modified: 2022-10-09
tags:
    - attack.impact
    - attack.t1485
logsource:
    product: aws
    service: cloudtrail
detection:
    selection:
        eventSource: eks.amazonaws.com
        eventName:
            - CreateCluster
            - DeleteCluster
    condition: selection
falsepositives:
    - EKS Cluster being created or deleted may be performed by a system administrator.
    - Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
    - EKS Cluster created or deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
level: low

Original YAML and metadata in JSON

False positives

• EKS Cluster being created or deleted may be performed by a system administrator.
• Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
• EKS Cluster created or deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.

Source references

• https://any-api.com/amazonaws_com/eks/docs/API_Description