This detection rule identifies unauthorized modifications to the Windows Registry that disable warnings for the execution of Python functions within Microsoft Excel. Specifically, it focuses on the "PythonFunctionWarnings" registry key, which, when altered to a specific value (0), suppresses alerts that inform users about potential risks associated with executing Python code. Threat actors can exploit this vulnerability to run malicious Python scripts embedded in Excel spreadsheets without triggering user warnings. Given the increasing incorporation of Python functionalities in Excel, this rule is crucial for monitoring and maintaining security when using Excel to mitigate code injection risks. The detection logic involves analyzing process creation events, ensuring that any attempts to modify this registry value are logged and assessed to determine the intent behind such changes. Effective monitoring of this key is essential for organizations that utilize Excel extensively, as it protects against potential exploitation and data breaches stemming from overlooked Python code execution.