Create azure_firewall_modified_or_deleted.yml

2021-08-08 22:42:51 -05:00
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+title: Azure Firewall Modified or Deleted
+id: 512cf937-ea9b-4332-939c-4c2c94baadcd
+description: Identifies when a firewall is created, modified, or deleted.
+author: Austin Songer
+status: experimental
+date: 2021/08/08
+references:
+    - https://docs.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations
+logsource:
+  service: azure.activitylogs
+detection:
+    selection:
+        properties.message: 
+            - MICROSOFT.NETWORK/AZUREFIREWALLS/WRITE
+            - MICROSOFT.NETWORK/AZUREFIREWALLS/DELETE
+    condition: selection
+level: medium
+tags:
+    - attack.impact
+falsepositives:
+ - Firewall 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 modified or deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.