Azure AD: Application Owner Added via Audit Log Message

Detects when an application owner is added in Azure audit logs, granting additional permissions to modify app configuration.

FreeReviewedSigma · Medium · v5
Product
azure
Service
auditlogs
Author
Mark Morowczynski '@markmorow', Bailey Bercik '@baileybercik' (SigmaHQ), DRL 1.1
Published
2022-06-02
Updated
2026-07-31
title: "Azure AD: Application Owner Added via Audit Log Message"
id: 115f1187-0416-4620-9029-2c945563be47
status: test
description: This rule flags audit log events where an application owner is added, identified by the message text "Add owner to application". Granting an owner role can enable the new account to modify application configuration, increasing attacker persistence and privilege within the tenant. It relies on Azure audit log telemetry capturing the specific operation message for owner changes.
references:
  - https://learn.microsoft.com/en-us/entra/architecture/security-operations-applications#new-owner
  - https://github.com/SigmaHQ/sigma/blob/master/rules/cloud/azure/audit_logs/azure_app_owner_added.yml
author: Mark Morowczynski '@markmorow', Bailey Bercik '@baileybercik', Huntrule Team
date: 2022-06-02
tags:
  - attack.t1552
  - attack.credential-access
logsource:
  product: azure
  service: auditlogs
detection:
  selection:
    properties.message: Add owner to application
  condition: selection
falsepositives:
  - When a new application owner is added by an administrator
level: medium
license: DRL-1.1
related:
  - id: 74298991-9fc4-460e-a92e-511aa60baec1
    type: derived