Rules Contributing to Microsoft Entra Changes to Device Registration Policy Alert

The following rules are used to identify suspicious Microsoft Entra changes to device registration policy. Any one or more of these will trigger the Microsoft Entra Changes to Device Registration Policy Alert. Details for each rule can be viewed by clicking the More Details link in the description.

Title

Description

Changes to Device Registration Policy

Monitor and alert for changes to the device registration policy.

Rule ID

azure_27

Query

{'selection': {'Category': 'Policy', 'ActivityDisplayName': 'Set device registration policies'}, 'condition': 'selection'}

Log Source

Stellar Cyber Microsoft Entra Events configured.

Rule Source

SigmaHQ,9494bff8-959f-4440-bbce-fb87a208d517

Author: Michael Epping, '@mepples21'

Tactics, Techniques, and Procedures

DEFENSE_EVASION, T1484

References

N/A

Severity

75

Suppression Logic Based On

  • initiatedBy.user.id
  • initiatedBy.app.servicePrincipalId
  • stellar.rule_id

Additional Information

Maturity Creation Date Risk Level False Positives
experimental 2022/06/28 high

  • Unknown