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Modification or Deletion of an AWS RDS Cluster — Sigma Rule

Sigma rule 457cc9ac-d8e6-4d1d-8c0e-251d0f11a74c. Modification or Deletion of an AWS RDS Cluster — Sigma Rule. Detects modifications to an RDS cluster or its deletion, which may indicate potential data exfiltration attempts, unauthorized access, or exposure of sensitive information.

Rule metadata and linked tags

Author: Ivan Saakov. Source status: experimental; severity: high. Source dates: 2024-12-06 / not supplied.

{
  "product": "aws",
  "service": "cloudtrail"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 7be9df2d2a4ef4b5f1742fdf0432f31f20956e9c4bfbc7b14f53497fd612e359

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: Modification or Deletion of an AWS RDS Cluster
id: 457cc9ac-d8e6-4d1d-8c0e-251d0f11a74c
status: experimental
description: Detects modifications to an RDS cluster or its deletion, which may indicate potential data exfiltration attempts, unauthorized access, or exposure of sensitive information.
references:
    - https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_ModifyDBCluster.html
    - https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_DeleteDBCluster.html
    - https://cloud.hacktricks.xyz/pentesting-cloud/aws-security/aws-privilege-escalation/aws-rds-privesc#rds-modifydbinstance
author: Ivan Saakov
date: 2024-12-06
tags:
    - attack.exfiltration
    - attack.t1020
logsource:
    product: aws
    service: cloudtrail
detection:
    selection:
        eventSource: rds.amazonaws.com
        eventName:
            - ModifyDBCluster
            - DeleteDBCluster
    condition: selection
falsepositives:
    - Verify if the modification or deletion was performed by an authorized administrator.
    - Confirm if the modification or deletion was part of a planned change or maintenance activity.
level: high

Original YAML and metadata in JSON

False positives

  • Verify if the modification or deletion was performed by an authorized administrator.
  • Confirm if the modification or deletion was part of a planned change or maintenance activity.

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.