Suspicious Azure Network Security Configuration Modified or Deleted (via activitylogs)

title: Suspicious Azure Network Security Configuration Modified or Deleted (via activitylogs)
id: 8d22e4af-bde7-556c-94ed-2da132694096
status: stable
description: This rule detects when a network security configuration is modified or deleted.
references:
    - https://learn.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations
author: Huntrule Team
date: 2026-04-28
tags:
    - attack.impact
    - attack.defense-evasion
    - attack.t1562.007
logsource:
    product: azure
    service: activitylogs
detection:
    selection:
        operationName:
            - MICROSOFT.NETWORK/NETWORKSECURITYGROUPS/WRITE
            - MICROSOFT.NETWORK/NETWORKSECURITYGROUPS/DELETE
            - MICROSOFT.NETWORK/NETWORKSECURITYGROUPS/SECURITYRULES/WRITE
            - MICROSOFT.NETWORK/NETWORKSECURITYGROUPS/SECURITYRULES/DELETE
            - MICROSOFT.NETWORK/NETWORKSECURITYGROUPS/JOIN/ACTION
            - MICROSOFT.NETWORK/NETWORKSECURITYGROUPS/PROVIDERS/MICROSOFT.INSIGHTS/DIAGNOSTICSETTINGS/WRITE
    condition: selection
falsepositives:
    - Unknown
level: medium