Suspicious Google Cloud Storage Buckets Modified or Deleted (via gcp.audit)
This rule detects when storage bucket is modified or deleted in Google Cloud.
SigmamediumCloudv1
sigma
suspicious-google-cloud-storage-buckets-modified-or-deleted-via-gcp-audit
title: Suspicious Google Cloud Storage Buckets Modified or Deleted (via gcp.audit)
id: 86a2d175-df26-56c5-9ba6-9518a6b91d6c
status: stable
description: This rule detects when storage bucket is modified or deleted in Google Cloud.
references:
- https://cloud.google.com/storage/docs/json_api/v1/buckets
author: Huntrule Team
date: 2026-07-06
tags:
- attack.impact
- attack.t1485
logsource:
product: gcp
service: gcp.audit
detection:
selection:
gcp.audit.method_name:
- storage.buckets.delete
- storage.buckets.insert
- storage.buckets.update
- storage.buckets.patch
condition: selection
falsepositives:
- Unknown
level: medium
Known false positives
- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.