How to remove the smmain virus

Most antivirus programs identify smmain.exe as malware—e.g. Symantec identifies it as Trojan.Adclicker or Trojan.Zlob.N, and Microsoft identifies it as TrojanDownloader:Win32/Zlob.DO.

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 smmain.exe malware

Smmain.exe file information

The process belongs to software Browser Protection Volume or Internet Explorer Secure or Security Messenger by unknown.

Description: Smmain.exe is not essential for Windows and will often cause problems. The smmain.exe file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 27,648 bytes (28% of all occurrences), 28,160 bytes, 25,088 bytes, 28,672 bytes or 30,208 bytes. 
It is a file with no information about its developer. The program has no visible window. Smmain.exe is not a Windows system file. Smmain.exe is able to monitor applications. Therefore the technical security rating is 56% dangerous.

Uninstalling this variant: If problems with smmain.exe come up, you can completely remove Browser Protection Volume or Internet Explorer Secure (Control Panel ⇒ Uninstall a Program).

Recommended: Identify smmain.exe related errors

Important: You should check the smmain.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 smmain issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active smmain process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the smmain.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

smmain.exe [all]