GCP Service Account Deletion
editGCP Service Account Deletion
editIdentifies 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: 3 (version history)
Added (Elastic Stack release): 7.10.0
Last modified (Elastic Stack release): 7.11.2
Rule authors: Elastic
Rule license: Elastic License
Potential false positives
editService 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 guide
editThe GCP Filebeat module must be enabled to use this rule.
Rule query
editevent.dataset:(googlecloud.audit or gcp.audit) and event.action:google.iam.admin.v*.DeleteServiceAccount and event.outcome:success
Threat mapping
editFramework: 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 history
edit- 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
-