GCP Service Account Deletionedit
Identifies when a service account is deleted in Google Cloud Platform (GCP). A service account is a special type of account used by an application or a virtual machine (VM) instance, not a person. Applications use service accounts to make authorized API calls, authorized as either the service account itself, or as G Suite or Cloud Identity users through domain-wide delegation. An adversary may delete a service account in order to disrupt their target’s business operations.
Rule type: query
Rule indices:
- filebeat-*
- logs-gcp*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-6m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Cloud
- GCP
- Continuous Monitoring
- SecOps
- Identity and Access
Version: 4 (version history)
Added (Elastic Stack release): 7.10.0
Last modified (Elastic Stack release): 7.12.0
Rule authors: Elastic
Rule license: Elastic License v2
Potential false positivesedit
Service accounts may be deleted by system administrators. Verify that the behavior was expected. Exceptions can be added to this rule to filter expected behavior.
Investigation guideedit
The GCP Filebeat module must be enabled to use this rule.
Rule queryedit
event.dataset:(googlecloud.audit or gcp.audit) and event.action:google.iam.admin.v*.DeleteServiceAccount and event.outcome:success
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Impact
- ID: TA0040
- Reference URL: https://attack.mitre.org/tactics/TA0040/
-
Technique:
- Name: Account Access Removal
- ID: T1531
- Reference URL: https://attack.mitre.org/techniques/T1531/
Rule version historyedit
- Version 4 (7.12.0 release)
-
- Formatting only
- Version 3 (7.11.2 release)
-
- Formatting only
- Version 2 (7.11.0 release)
-
-
Updated query, changed from:
event.dataset:googlecloud.audit and event.action:google.iam.admin.v*.DeleteServiceAccount and event.outcome:success
-