AWS SecurityHub Findings Evasion — Sigma Rule

Rule metadata and linked tags

Author: Sittikorn S. Source status: stable; severity: high. Source dates: 2021-06-28 / not supplied.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 865044229606ad4a1bc676f90a7c5edb0de04a5b9f518b69888648aee3480e91

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 SecurityHub Findings Evasion
id: a607e1fe-74bf-4440-a3ec-b059b9103157
status: stable
description: Detects the modification of the findings on SecurityHub.
references:
    - https://docs.aws.amazon.com/cli/latest/reference/securityhub/
author: Sittikorn S
date: 2021-06-28
tags:
    - attack.defense-impairment
    - attack.t1685
logsource:
    product: aws
    service: cloudtrail
detection:
    selection:
        eventSource: securityhub.amazonaws.com
        eventName:
            - 'BatchUpdateFindings'
            - 'DeleteInsight'
            - 'UpdateFindings'
            - 'UpdateInsight'
    condition: selection
falsepositives:
    - System or Network administrator behaviors
    - DEV, UAT, SAT environment. You should apply this rule with PROD environment only.
level: high

Original YAML and metadata in JSON

False positives

• System or Network administrator behaviors
• DEV, UAT, SAT environment. You should apply this rule with PROD environment only.

Source references

• https://docs.aws.amazon.com/cli/latest/reference/securityhub/