Google Cloud Service Account Disabled or Deleted

 1title: Google Cloud Service Account Disabled or Deleted
 2id: 13f81a90-a69c-4fab-8f07-b5bb55416a9f
 3status: test
 4description: Identifies when a service account is disabled or deleted in Google Cloud.
 5references:
 6    - https://cloud.google.com/iam/docs/reference/rest/v1/projects.serviceAccounts
 7author: Austin Songer @austinsonger
 8date: 2021-08-14
 9modified: 2022-10-09
10tags:
11    - attack.impact
12    - attack.t1531
13logsource:
14    product: gcp
15    service: gcp.audit
16detection:
17    selection:
18        gcp.audit.method_name|endswith:
19            - .serviceAccounts.disable
20            - .serviceAccounts.delete
21    condition: selection
22falsepositives:
23    - Service Account being disabled 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.
24    - Service Account disabled or deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
25level: medium