Azure Kubernetes Service Account Modified or Deleted

calendar Jun 4, 2025 · attack.impact attack.t1531 attack.t1485 attack.t1496 attack.t1489  ·
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Identifies when a service account is modified or deleted.

Sigma rule (View on GitHub)

 1title: Azure Kubernetes Service Account Modified or Deleted
 2id: 12d027c3-b48c-4d9d-8bb6-a732200034b2
 3status: test
 4description: Identifies when a service account is modified or deleted.
 5references:
 6    - https://learn.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations#microsoftkubernetes
 7    - https://www.microsoft.com/security/blog/2021/03/23/secure-containerized-environments-with-updated-threat-matrix-for-kubernetes/
 8    - https://www.microsoft.com/security/blog/2020/04/02/attack-matrix-kubernetes/
 9    - https://medium.com/mitre-engenuity/att-ck-for-containers-now-available-4c2359654bf1
10author: Austin Songer @austinsonger
11date: 2021-08-07
12modified: 2022-08-23
13tags:
14    - attack.impact
15    - attack.t1531
16    - attack.t1485
17    - attack.t1496
18    - attack.t1489
19logsource:
20    product: azure
21    service: activitylogs
22detection:
23    selection:
24        operationName:
25            - MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/SERVICEACCOUNTS/WRITE
26            - MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/SERVICEACCOUNTS/DELETE
27            - MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/SERVICEACCOUNTS/IMPERSONATE/ACTION
28    condition: selection
29falsepositives:
30    - Service account 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.
31    - Service account modified or deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
32level: medium

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