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Description

Create an activity log alert for the Create or Update Public IP Addresses event.

Rationale​

Monitoring for Create or Update Public IP Address events gives insight into network access changes and may reduce the time it takes to detect suspicious activity.

Impact​

There will be a substantial increase in log size if there are a large number of administrative actions on a server.

Audit​

This policy evaluates Azure Subscriptions for the presence of an Azure Activity Log Alert that captures Create or Update Public IP Addresses events. A subscription is marked as INCOMPLIANT if it does not have an Activity Log Alert whose Condition JSON filters on the Microsoft.Network/publicIPAddresses/write operation.

Default Value​

By default, no monitoring alerts are created or active.

References​

  1. https://azure.microsoft.com/en-us/updates/classic-alerting-monitoring-retirement
  2. https://docs.microsoft.com/en-in/azure/azure-monitor/platform/alerts-activity-log
  3. https://docs.microsoft.com/en-in/rest/api/monitor/activitylogalerts/createorupdate
  4. https://docs.microsoft.com/en-in/rest/api/monitor/activitylogalerts/listbysubscriptionid
  5. https://learn.microsoft.com/en-us/security/benchmark/azure/mcsb-logging-threat-detection#lt-3-enable-logging-for-security-investigation