New CA Policy by Non-approved Actor

calendar Oct 17, 2023 · attack.defense_evasion attack.t1548  ·
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Monitor and alert on conditional access changes.

Sigma rule (View on GitHub)

 1title: New CA Policy by Non-approved Actor
 2id: 0922467f-db53-4348-b7bf-dee8d0d348c6
 3status: test
 4description: Monitor and alert on conditional access changes.
 5references:
 6    - https://docs.microsoft.com/en-us/azure/active-directory/fundamentals/security-operations-infrastructure
 7author: Corissa Koopmans, '@corissalea'
 8date: 2022/07/18
 9tags:
10    - attack.defense_evasion
11    - attack.t1548
12logsource:
13    product: azure
14    service: auditlogs
15detection:
16    selection:
17        properties.message: Add conditional access policy
18    condition: selection
19falsepositives:
20    - Misconfigured role permissions
21    - Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
22level: medium

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