This detection rule identifies modifications to the Windows registry that alter the health check intervals of Windows Defender, specifically monitoring changes made to the 'ServiceKeepAlive' registry path. The rule uses Sysmon event logs (EventID 12 and EventID 13) to track when the registry value is set to '0x00000001'. Such modifications are critical because they can impede Windows Defender's capacity to execute health checks, thereby elevating the risk that malware and other threats can remain undetected. The significance of this detection lies in its potential to reveal actions taken by attackers aimed at enhancing their chances of operating undetected by manipulating security settings.