Azure Service Principal Created

Description

Identifies when a service principal is created in Azure.

Query · sigma

selection:
  operationName: Add service principal
condition: selection

Known false positives

  • Service principal being created may be performed by a system administrator.
  • Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
  • Service principal created from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
Raw source Azure Service Principal Created · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Azure Service Principal Created
id: 0ddcff6d-d262-40b0-804b-80eb592de8e3
status: test
description: Identifies when a service principal is created in Azure.
references:
    - https://learn.microsoft.com/en-us/entra/identity/monitoring-health/reference-audit-activities#core-directory
    - https://analyticsrules.exchange/analyticrules/79566f41-df67-4e10-a703-c38a6213afd8/
author: Austin Songer @austinsonger
date: 2021-09-02
modified: 2026-04-30
tags:
    - attack.stealth
logsource:
    product: azure
    service: auditlogs
detection:
    selection:
        operationName: 'Add service principal'
    condition: selection
falsepositives:
    - Service principal being created may be performed by a system administrator.
    - Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
    - Service principal created from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
level: medium

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