Bitbucket Audit Service: Audit Log Configuration Updated

Flags Bitbucket audit log configuration change events that may indicate attempts to impair logging.

FreeReviewedSigma · Medium · v5

Product: bitbucket
Service: audit
Author: Muhammad Faisal (@faisalusuf) (SigmaHQ), DRL 1.1
Published: 2024-02-25
Updated: 2026-07-31

ATT&CK techniques

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule identifies when Bitbucket audit logging configuration is changed, specifically for the event category “Auditing” and action “Audit log configuration updated.” Attackers may alter audit settings to reduce visibility or weaken forensic evidence. Detection relies on Bitbucket audit service telemetry that records audit type category and action for configuration changes.

Reporting behind it

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Bitbucket Audit Service: Audit Log Configuration Updated

Pivot detection · T1685 · 9 related

Changelog

v5
Candidate ingested via manual entry.2026-07-31
v4
Candidate ingested via manual entry.2026-07-31
v3
Candidate ingested via manual entry.2026-07-31
v2
Candidate ingested via manual entry.2026-07-31
v1
No changelog recorded for this version.2026-07-30

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

bitbucket-audit-log-configuration-updated-6aa12161

title: "Bitbucket Audit Service: Audit Log Configuration Updated"
id: 985f3e2b-e133-4041-8bd4-1d08a6dea581
status: test
description: This rule identifies when Bitbucket audit logging configuration is changed, specifically for the event category “Auditing” and action “Audit log configuration updated.” Attackers may alter audit settings to reduce visibility or weaken forensic evidence. Detection relies on Bitbucket audit service telemetry that records audit type category and action for configuration changes.
references:
  - https://confluence.atlassian.com/bitbucketserver/view-and-configure-the-audit-log-776640417.html
  - https://github.com/SigmaHQ/sigma/blob/master/rules/application/bitbucket/audit/bitbucket_audit_log_configuration_update_detected.yml
author: Muhammad Faisal (@faisalusuf), Huntrule Team
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: Auditing
    auditType.action: Audit log configuration updated
  condition: selection
falsepositives:
  - Legitimate user activity.
level: medium
license: DRL-1.1
related:
  - id: 6aa12161-235a-4dfb-9c74-fe08df8d8da1
    type: derived

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