1200KM / sigma-rule
AWS S3 Bucket Versioning Disable — Sigma Rule
Sigma rule a136ac98-b2bc-4189-a14d-f0d0388e57a7. AWS S3 Bucket Versioning Disable — Sigma Rule. Detects when S3 bucket versioning is disabled. Threat actors use this technique during AWS ransomware incidents prior to deleting S3 objects.
Rule metadata and linked tags
Author: Sean Johnstone | Unit 42. Source status: test; severity: medium. Source dates: 2023-10-28 / not supplied.
{
"product": "aws",
"service": "cloudtrail"
}Pinned original Sigma rule · Detection Rule License 1.1
Source SHA-256: d8878bcfa1527168cbbdb87ac1485f3cf3289aaac9aa163eb372305bcb672142
Detection logic
Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.
title: AWS S3 Bucket Versioning Disable
id: a136ac98-b2bc-4189-a14d-f0d0388e57a7
status: test
description: Detects when S3 bucket versioning is disabled. Threat actors use this technique during AWS ransomware incidents prior to deleting S3 objects.
references:
- https://invictus-ir.medium.com/ransomware-in-the-cloud-7f14805bbe82
author: Sean Johnstone | Unit 42
date: 2023-10-28
tags:
- attack.impact
- attack.t1490
logsource:
product: aws
service: cloudtrail
detection:
selection:
eventSource: s3.amazonaws.com
eventName: PutBucketVersioning
requestParameters|contains: 'Suspended'
condition: selection
falsepositives:
- AWS administrator legitimately disabling bucket versioning
level: medium
False positives
- AWS administrator legitimately disabling bucket versioning
Source references
Connected ecosystem references
Exact source-tagged techniques
Telemetry review
Read the original logsource above, then inspect the linked detection workspaces for technique-level sensor context. No per-rule telemetry equivalence is inferred.
Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.