In some instances, Mud.exe has been identified as a malicious process. Because it is not a core Windows file, a process with this name running in your system folders can be a sign of infection.

Are you seeing this file on your computer, or are you looking to ? Zmud.exe Windows process - What is it? - File.net

: If the file is suspected to be a threat, experts recommend using an updated antivirus or tools from sites like BleepingComputer to scan and remove it. Summary Table MUD Game Executable Potential Malware Typical Use Running a text-based RPG server or client. Trojan or spyware masking its name. User Risk Low (if from a trusted source). High (can track keystrokes). Standard Location C:\Games\MUD or similar user-created folder. C:\Windows or C:\Windows\System32 .

: While legitimate game files are usually in a dedicated game folder, security tools like the Malwarebytes Blog note that malware often camouflages itself by using simple names in sensitive directories like C:\Windows\System32 .