Azure VPN Connection Modified or Deleted

Description

Identifies when a VPN connection is modified or deleted.

Query · sigma

selection:
  operationName:
  - MICROSOFT.NETWORK/VPNGATEWAYS/VPNCONNECTIONS/WRITE
  - MICROSOFT.NETWORK/VPNGATEWAYS/VPNCONNECTIONS/DELETE
condition: selection

Known false positives

  • VPN Connection 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.
  • VPN Connection modified or deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
Raw source Azure VPN Connection Modified or Deleted · Sigma
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Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Azure VPN Connection Modified or Deleted
id: 61171ffc-d79c-4ae5-8e10-9323dba19cd3
status: test
description: Identifies when a VPN connection is modified or deleted.
references:
    - https://learn.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations
author: Austin Songer @austinsonger
date: 2021-08-08
modified: 2022-08-23
tags:
    - attack.impact
logsource:
    product: azure
    service: activitylogs
detection:
    selection:
        operationName:
            - MICROSOFT.NETWORK/VPNGATEWAYS/VPNCONNECTIONS/WRITE
            - MICROSOFT.NETWORK/VPNGATEWAYS/VPNCONNECTIONS/DELETE
    condition: selection
falsepositives:
    - VPN Connection 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.
    - VPN Connection 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

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