The `Azure Policy DeployIfNotExists` rule is designed to detect when an Azure Policy with the `DeployIfNotExists` effect is triggered, enabling automatic resource deployment based on specified conditions. This functionality can be misused by adversaries to create policies that deploy unauthorized resources or backdoors, facilitating stealthy persistence within Azure environments. The rule monitors Azure Monitor activity logs for any instances where this specific policy action occurs, classifying it as a medium-severity alert. Security operators are advised to investigate relevant policy operations around the time of the alert to determine potential malicious intent, and to review the deployment templates associated with triggered policies. Additionally, patterns of similar triggers in the recent past should be checked to assess whether such activities are part of expected behavior within the organization.