GCP Storage Bucket Configuration Modification
editGCP Storage Bucket Configuration Modification
editIdentifies when the configuration is modified for a storage bucket in Google Cloud Platform (GCP). An adversary may modify the configuration of a storage bucket in order to weaken the security controls of their target’s environment.
Rule type: query
Rule indices:
- filebeat-*
- logs-gcp*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: None (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Domain: Cloud
- Data Source: GCP
- Data Source: Google Cloud Platform
- Use Case: Identity and Access Audit
- Tactic: Defense Evasion
Version: 104
Rule authors:
- Elastic
Rule license: Elastic License v2
Investigation guide
editSetup
editThe GCP Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.
Rule query
editevent.dataset:gcp.audit and event.action:"storage.buckets.update" and event.outcome:success
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Modify Cloud Compute Infrastructure
- ID: T1578
- Reference URL: https://attack.mitre.org/techniques/T1578/