Title:
Azure Network Firewall Policy Modified or Deleted
Status:
test
Description:Identifies when a Firewall Policy is Modified or Deleted.
References:
-https://learn.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations
Author: Austin Songer @austinsonger
Date: 2021-09-02
modified:2022-08-23
Tags:
- -'attack.impact'
- -'attack.defense-impairment'
- -'attack.t1686.001'
Logsource:
- product: azure
- service: activitylogs
Detection:
selection:
operationName:
-'MICROSOFT.NETWORK/FIREWALLPOLICIES/WRITE'
-'MICROSOFT.NETWORK/FIREWALLPOLICIES/JOIN/ACTION'
-'MICROSOFT.NETWORK/FIREWALLPOLICIES/CERTIFICATES/ACTION'
-'MICROSOFT.NETWORK/FIREWALLPOLICIES/DELETE'
condition:
selection
Falsepositives:
-Firewall Policy 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.
-Firewall Policy 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
