Bitbucket Secret Scanning Rule Deleted — Sigma Rule

Rule metadata and linked tags

Author: Muhammad Faisal (@faisalusuf). Source status: test; severity: low. Source dates: 2024-02-25 / not supplied.

{
  "product": "bitbucket",
  "service": "audit",
  "definition": "Requirements: \"Basic\" log level is required to receive these audit events."
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 3ca6f685a345129055070df5e36158373ff3fdc0af4f8317592130c051c37ac4

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: Bitbucket Secret Scanning Rule Deleted
id: ff91e3f0-ad15-459f-9a85-1556390c138d
status: test
description: Detects when secret scanning rule is deleted for the project or repository.
references:
    - https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
    - https://confluence.atlassian.com/bitbucketserver/secret-scanning-1157471613.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
    - attack.defense-impairment
    - attack.t1685
logsource:
    product: bitbucket
    service: audit
    definition: 'Requirements: "Basic" log level is required to receive these audit events.'
detection:
    selection:
        auditType.category:
            - 'Projects'
            - 'Repositories'
        auditType.action:
            - 'Project secret scanning rule deleted'
            - 'Repository secret scanning rule deleted'
    condition: selection
falsepositives:
    - Legitimate user activity.
level: low

Original YAML and metadata in JSON

False positives

• Legitimate user activity.

Source references

• https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
• https://confluence.atlassian.com/bitbucketserver/secret-scanning-1157471613.html