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S3 impact and exfiltration V-027

Finds bucket versioning, encryption or lifecycle changed by a non-deployer, replication out, and bursts of reads, deletes or egress.

Warden. High to Critical. Live.

Checks

ChecksNeeds
Catches bucket versioning suspended by a non-deployer.Live events: bucket_impact
Catches a lifecycle rule set to expire a bucket's objects by a non-deployer.Live events: tamper, PutBucketLifecycle, Live events: tamper, PutBucketLifecycleConfiguration
Catches bucket default encryption removed by a non-deployer.Live events: bucket_impact
Catches a bucket replicated to a destination outside your organization.Live events: bucket_impact
Finds objects written under a customer-supplied encryption key.Live events: object_data
Finds a burst of object deletions from one bucket by one principal.Live events: object_data
Finds a burst of object reads from a sensitive bucket by one principal.Live events: object_data
Finds a host sending a large volume to unknown internet hosts.flow egress peer
Says when object activity could not be read.Live events: object_data

Coverage

Could not read anything this run

Run history

No run has recorded this rule yet.

Findings

No open findings.

What it fed

No case has used a finding of this rule in the last 30 days.

Techniques

None mapped.

How to fix

LookupEvents replay for the scope, warden show (receipt) → raise the budget, fix delegation or the spoke trust by PR; read-only