This rule detects modifications or deletions of Virtual Networks within the Azure platform. It identifies actions performed on virtual network gateways and networks through their respective API operations. Specifically, it looks for operations that start with 'MICROSOFT.NETWORK/VIRTUALNETWORKGATEWAYS/' and 'MICROSOFT.NETWORK/VIRTUALNETWORKS/' and end with either '/WRITE' or '/DELETE'. The detection mechanism relies on filtering activity logs that record these operations to ascertain whether such changes were initiated, which may indicate a legitimate administrative task or potentially hazardous activity by unauthorized users. Each entry considered will be scrutinized against known behaviors, especially from familiar users or systems, to mitigate false positives. Overall, this rule is essential for maintaining the integrity of cloud networking infrastructure in Azure, ensuring that any significant changes are monitored closely to prevent security breaches. It is crucial for organizations to investigate any modifications initiated by unexpected users or user agents to maintain security compliance.