Suspicious Azure Firewall Rule Configuration Modified or Deleted (via activitylogs)

title: Suspicious Azure Firewall Rule Configuration Modified or Deleted (via activitylogs)
id: b8ad4e70-fa48-50e1-bef1-7867ba40e632
status: stable
description: This rule detects when a Firewall Rule Configuration is Modified or Deleted.
references:
    - https://learn.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations
author: Huntrule Team
date: 2026-06-16
tags:
    - attack.impact
    - attack.defense-evasion
    - attack.t1562.007
logsource:
    product: azure
    service: activitylogs
detection:
    selection:
        operationName:
            - MICROSOFT.NETWORK/FIREWALLPOLICIES/RULECOLLECTIONGROUPS/WRITE
            - MICROSOFT.NETWORK/FIREWALLPOLICIES/RULECOLLECTIONGROUPS/DELETE
            - MICROSOFT.NETWORK/FIREWALLPOLICIES/RULEGROUPS/WRITE
            - MICROSOFT.NETWORK/FIREWALLPOLICIES/RULEGROUPS/DELETE
    condition: selection
falsepositives:
    - Unknown
level: medium