Detection rules › Sigma
Azure Device or Configuration Modified or Deleted
Identifies when a device or device configuration in azure is modified or deleted.
Known false positives
- Device or device configuration being modified or deleted may be performed by a system administrator.
- Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
- Device or device configuration modified or deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Impact |
Telemetry coverage
| Platform | Record / event type |
|---|---|
| Azure | Delete device |
| Azure | Update device |
| Azure | Delete device configuration |
| Azure | Update device configuration |
Rules detecting the same action
These rules filter on the same operation.
- Azure Device No Longer Managed or Compliant (Sigma)
- Entra ID AiTM Phishing-Kit Chain Detected (Elastic)
- Entra ID Device Registration with Phishing Kit Default OS Build (Elastic)
- Entra ID Device Registration with ROADtools Default OS Build (Elastic)
- Entra ID Multiple Device Registrations by a Single User (Elastic)
- Entra ID Protection User Alert and Device Registration (Elastic)
- Entra ID Register Device with Unusual User Agent (Azure AD Join) (Elastic)
- Entra ID Unusual Cloud Device Registration (Elastic)
Rule body
title: Azure Device or Configuration Modified or Deleted
id: 46530378-f9db-4af9-a9e5-889c177d3881
status: test
description: Identifies when a device or device configuration in azure is modified or deleted.
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: 2022-10-09
tags:
- attack.impact
- attack.t1485
- attack.t1565.001
logsource:
product: azure
service: activitylogs
detection:
selection:
properties.message:
- Delete device
- Delete device configuration
- Update device
- Update device configuration
condition: selection
falsepositives:
- Device or device configuration being modified or deleted may be performed by a system administrator.
- Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
- Device or device configuration modified or deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
level: medium
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
properties.message:
- Delete device
- Delete device configuration
- Update device
- Update device configuration
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
properties.message | eq |
| field:"properties.message" kind:eq |