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AWS S3 Bucket Configuration Deletion

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AWS S3 Bucket Configuration Deletion

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Identifies the deletion of various Amazon Simple Storage Service (S3) bucket configuration components.

Rule type: query

Rule indices:

filebeat-*
logs-aws*

Severity: low

Risk score: 21

Runs every: 10 minutes

Searches indices from: now-60m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

Elastic
Cloud
AWS
Continuous Monitoring
SecOps
Asset Visibility

Version: 101 (version history)

Added (Elastic Stack release): 7.9.0

Last modified (Elastic Stack release): 8.6.0

Rule authors: Elastic

Rule license: Elastic License v2

Potential false positives

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Bucket components may be deleted by a system or network administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment. Bucket component deletions by 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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Rule query

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event.dataset:aws.cloudtrail and event.provider:s3.amazonaws.com and
event.action:(DeleteBucketPolicy or DeleteBucketReplication or
DeleteBucketCors or DeleteBucketEncryption or
DeleteBucketLifecycle) and event.outcome:success

Threat mapping

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
Technique:
- Name: Indicator Removal on Host
- ID: T1070
- Reference URL: https://attack.mitre.org/techniques/T1070/

Rule version history

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Version 101 (8.6.0 release)

Formatting only

Version 100 (8.5.0 release)

Formatting only

Version 8 (8.4.0 release)

Formatting only

Version 6 (8.1.0 release)

Formatting only

Version 5 (7.13.0 release)

Updated query, changed from:

event.action:(DeleteBucketPolicy or DeleteBucketReplication or
DeleteBucketCors or DeleteBucketEncryption or DeleteBucketLifecycle)
and event.dataset:aws.cloudtrail and event.provider:s3.amazonaws.com
and event.outcome:success

Version 4 (7.12.0 release)

Formatting only

Version 3 (7.11.2 release)

Formatting only

Version 2 (7.10.0 release)

Formatting only

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