Google Cloud Storage Bucket modified

gcp

Classification:

compliance

Tactic:

TA0040-impact

Technique:

T1565-data-manipulation

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Goal

Detect when an administrative change to a GCS Bucket has been made. This could change the retention policy or bucket lock. For more information, see the GCS Bucket Lock docs.

Strategy

This rule lets you monitor GCS bucket admin activity audit logs to determine if a bucket has been updated with the following method:

  • storage.buckets.update

Triage and response

Review the bucket to ensure that it is properly configured.