This detection rule aims to identify potential DLL sideloading activities specifically associated with the 'MpSvc.dll' file, which is integral to Windows Defender on Windows systems. DLL sideloading is a technique used in cyberattacks where a malicious DLL is loaded in place of a legitimate one, allowing attackers to execute arbitrary code or maintain persistence on the victim's system while evading defenses. The detection logic checks if any image loaded ends with 'MpSvc.dll', which indicates a possible sideloading attempt. However, for an alert to be triggered, the loading process must not originate from trusted directories such as 'C:\Program Files\Windows Defender\', 'C:\ProgramData\Microsoft\Windows Defender\Platform\', or 'C:\Windows\WinSxS\'. This filter mitigates false positives arising from normal behavior of legitimate applications that might load this DLL from these trusted locations. The rule is characterized as 'medium' severity, indicating that while suspicious, context and further investigation is recommended to confirm potential threats.