Sigma rule: Google Cloud Kubernetes RoleBinding

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-8aac33509ec4, updated 2022-10-09T00:00:00.000Z.

Rule

Title
Google Cloud Kubernetes RoleBinding
Status
test
Level
medium
Author
Austin Songer @austinsonger
Date
2021-08-09
Modified
2022-10-09
File
rules/cloud/gcp/audit/gcp_kubernetes_rolebinding.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the creation or patching of potential malicious RoleBinding. This includes RoleBindings and ClusterRoleBinding.

Log source

product
gcp
service
gcp.audit

Detection

selection:
    gcp.audit.method_name:
        - io.k8s.authorization.rbac.v*.clusterrolebindings.create
        - io.k8s.authorization.rbac.v*.rolebindings.create
        - io.k8s.authorization.rbac.v*.clusterrolebindings.patch
        - io.k8s.authorization.rbac.v*.rolebindings.patch
        - io.k8s.authorization.rbac.v*.clusterrolebindings.update
        - io.k8s.authorization.rbac.v*.rolebindings.update
        - io.k8s.authorization.rbac.v*.clusterrolebindings.delete
        - io.k8s.authorization.rbac.v*.rolebindings.delete
condition: selection

False positives (as the rule lists them)

  • RoleBindings and ClusterRoleBinding being modified 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.
  • RoleBindings and ClusterRoleBinding modified or deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.

Tags

  • attack.credential-access

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/cloud/gcp/audit/gcp_kubernetes_rolebinding.yml

Sources and licences

  • SigmaHQ

    "Google Cloud Kubernetes RoleBinding" by Austin Songer @austinsonger (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/cloud/gcp/audit/gcp_kubernetes_rolebinding.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Google Cloud Kubernetes RoleBinding",
entity page, dataset version ref-8aac33509ec4, updated 2022-10-09T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/0322d9f2-289a-47c2-b5e1-b63c90901a3e (accessed 2026-11-03).
Underlying source: SigmaHQ rule 0322d9f2-289a-47c2-b5e1-b63c90901a3e, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.