How to remove the Msrtmon virus

Most antivirus programs identify Msrtmon.exe as malware—such as Microsoft identifies it as Backdoor:Win32/Optix, and TrendMicro identifies it as BKDR_OPTIX.CD.

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the Msrtmon.exe malware

Msrtmon.exe file information

Neither the developer nor the software publisher of Msrtmon.exe is identified, as would normally be the case.

Description: Msrtmon.exe is not essential for Windows and will often cause problems. The file Msrtmon.exe is located in the C:\Windows\System32 folder. The file size on Windows 10/8/7/XP is 1,351,168 bytes. 
There is no description of the program. The program is loaded during the Windows boot process (see Registry key: MACHINE\RunServices, MACHINE\Run, Run). It is not a Windows core file. The program has no visible window. The Msrtmon.exe file is located in the Windows folder, but it is not a Windows core file. Msrtmon.exe is able to record keyboard and mouse inputs, hide itself and monitor applications. Therefore the technical security rating is 88% dangerous.

Recommended: Identify Msrtmon.exe related errors

If Msrtmon.exe is located in the C:\Windows folder, the security rating is 98% dangerous. The file size is 772,489 bytes. It is a file with no information about its developer. The program is not visible. Msrtmon.exe is located in the Windows folder, but it is not a Windows core file. The application starts upon Windows startup (see Registry key: MACHINE\RunServices, MACHINE\Run, Run). The file is not a Windows system file. The application uses ports to connect to or from a LAN or the Internet. Msrtmon.exe is able to record keyboard and mouse inputs, hide itself, monitor applications and manipulate other programs.

Important: You should check the Msrtmon.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


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Best practices for resolving Msrtmon issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active Msrtmon process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the Msrtmon.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

Msrtmon.exe [all]