Detection rules › Sigma

Azure Device No Longer Managed or Compliant

Status
test
Severity
medium
Log source
product azure, service auditlogs
Author
Austin Songer @austinsonger
Source
github.com/SigmaHQ/sigma

Identifies when a device in azure is no longer managed or compliant

Known false positives

  • Administrator may have forgotten to review the device.

MITRE ATT&CK coverage

TacticTechniques
ImpactNo specific technique

Telemetry coverage

Rules detecting the same action

These rules filter on the same operation.

Rule body

title: Azure Device No Longer Managed or Compliant
id: 542b9912-c01f-4e3f-89a8-014c48cdca7d
status: test
description: Identifies 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: Austin Songer @austinsonger
date: 2021-09-03
modified: 2026-04-30
tags:
    - attack.impact
logsource:
    product: azure
    service: auditlogs
detection:
    selection:
        operationName:
            - 'Device no longer compliant'
            - 'Device no longer managed'
    condition: selection
falsepositives:
    - Administrator may have forgotten to review the device.
level: medium

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    operationName:
        - 'Device no longer compliant'
        - 'Device no longer managed'

Indicators

These rows show field, operator, and value matches.

FieldKindValuesSearch
operationNameeq
  • Device no longer compliant
  • Device no longer managed
field:"operationName" kind:eq