Suspicious Azure Device No Longer Managed or Compliant (via auditlogs)

This rule detects when a device in azure is no longer managed or compliant

SigmamediumCloudv1
sigma
title: Suspicious Azure Device No Longer Managed or Compliant (via auditlogs)
id: 1abaf867-7fa4-55e2-b36c-9066c66dfc8d
status: stable
description: This rule detects when a device in azure is no longer managed or compliant
references:
    - https://learn.microsoft.com/en-us/entra/identity/monitoring-health/reference-audit-activities#core-directory
author: Huntrule Team
date: 2026-02-05
tags:
    - attack.impact
    - attack.defense-evasion
    - attack.t1562
logsource:
    product: azure
    service: auditlogs
detection:
    selection:
        operationName:
            - 'Device no longer compliant'
            - 'Device no longer managed'
    condition: selection
falsepositives:
    - Unknown
level: medium

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.