Phoenix Studio
Convert indexed Sigma rules into analyst-ready detections.
This studio is built around Phoenix's own rule corpus, not a blank editor. Search by title or rule id, choose a local pySigma backend, then reveal pipelines only when you actually need them.
Indexed Rules
3,731
Ready to search
Backends
17
Loaded from pysigma-node
pySigma Versions
10
Newest: 1.3.3
Translation Workspace
Shape the rule before it leaves Phoenix
Tune Translation
Active Rule
Kubernetes Unauthorized or Unauthenticated Access
Target Profile
Splunk
Splunk through pysigma-backend-splunk.
Format Mode
Default
Default pySigma output mode for this backend.
Conversion Output
Kubernetes Unauthorized or Unauthenticated Access
Using Splunk · Default · pySigma 1.3.3
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion1.3.3
title: Kubernetes Unauthorized or Unauthenticated Access
id: 0d933542-1f1f-420d-97d4-21b2c3c492d9
status: test
description: |
Detects when a request to the Kubernetes API is rejected due to lack of authorization or due to an expired authentication token being used.
This may indicate an attacker attempting to leverage credentials they have obtained.
references:
- https://kubernetes.io/docs/reference/config-api/apiserver-audit.v1/
- https://www.datadoghq.com/blog/monitor-kubernetes-audit-logs/#monitor-api-authentication-issues
author: kelnage
date: 2024-04-12
tags:
- attack.privilege-escalation
logsource:
product: kubernetes
service: audit
detection:
selection:
responseStatus.code:
- 401 # Unauthorized
- 403 # Forbidden
condition: selection
falsepositives:
- A misconfigured RBAC policy, a mistake by a valid user, or a wider issue with authentication tokens can also generate these errors.
level: low
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/application/kubernetes/audit/kubernetes_audit_unauthorized_unauthenticated_actions.yml