IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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GCP Storage Bucket Deletion

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GCP Storage Bucket Deletion

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Identifies when a Google Cloud Platform (GCP) storage bucket is deleted. An adversary may delete a storage bucket in order to disrupt their target’s business operations.

Rule type: query

Rule indices:

filebeat-*

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:

https://cloud.google.com/storage/docs/key-terms#buckets

Tags:

Elastic
Cloud
GCP
Continuous Monitoring
SecOps
Monitoring

Version: 1

Added (Elastic Stack release): 7.10.0

Rule authors: Elastic

Rule license: Elastic License

Potential false positives

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Storage buckets may be deleted by a system or network administrator. Verify whether the user email, resource name, and/or hostname should be making changes in your environment. Bucket deletions from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.

Investigation guide

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The GCP Filebeat module must be enabled to use this rule.

Rule query

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event.dataset:googlecloud.audit and
event.action:storage.buckets.delete

Threat mapping

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Impact
- ID: TA0040
- Reference URL: https://attack.mitre.org/tactics/TA0040/
Technique:
- Name: Data Destruction
- ID: T1485
- Reference URL: https://attack.mitre.org/techniques/T1485/

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