Sigma Rule Library

Authentications To Important Apps Using Single Factor Authentication

Detect when authentications to important application(s) only required single-factor authentication

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Detection logic

selection

resultType: 0
properties.appId|expand: "%Important_AppIds%"
properties.authenticationRequirement: singleFactorAuthentication

Condition

selection

Raw YAML

title: Authentications To Important Apps Using Single Factor Authentication
id: f272fb46-25f2-422c-b667-45837994980f
status: test
description: Detect when authentications to important application(s) only required single-factor authentication
references:
    - https://learn.microsoft.com/en-gb/entra/architecture/security-operations-user-accounts
author: MikeDuddington, '@dudders1'
date: 2022-07-28
modified: 2026-05-08
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.initial-access
    - attack.stealth
    - attack.t1078
logsource:
    product: azure
    service: signinlogs
detection:
    selection:
        resultType: 0
        properties.appId|expand: '%Important_AppIds%'
        properties.authenticationRequirement: 'singleFactorAuthentication'
    condition: selection
falsepositives:
    - Unlikely
level: medium

False positives

  • Unlikely

References

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