How to remove the system3_ virus

Most antivirus programs identify system3_.exe as malware—e.g. TrendMicro identifies it as TROJ_SPNR.10KO11 or WORM_SOHAND.SM, and Kaspersky identifies it as Worm.Win32.AutoRun.esf or Worm.Win32.AutoRun.fnc.

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 system3_.exe malware

System3_.exe file information

Windows Task Manager with system3_
System3_.exe process in Windows Task Manager

The process system3_.exe contains no information about the creator.

Description: System3_.exe is not essential for Windows and will often cause problems. The system3_.exe file is located in a subfolder of the user's profile folder. Known file sizes on Windows 10/8/7/XP are 684,289 bytes (28% of all occurrences), 1,065,984 bytes and 4 more variants. 
There is no information about the author of the file. It is not a Windows system file. The software starts upon Windows startup (see Registry key: Run, Winlogon\Shell, DEFAULT\Run). System3_.exe is able to record keyboard and mouse inputs, monitor applications and manipulate other programs. Therefore the technical security rating is 54% dangerous, however you should also read the user reviews.

Recommended: Identify system3_.exe related errors

Important: You should check the system3_.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.


User Comments

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  dinh son hai  

Summary: Average user rating of system3_.exe: based on 4 votes with 1 user comment. One user thinks it's neither essential nor dangerous. 3 users think system3_.exe is dangerous and recommend removing it.

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Best practices for resolving system3_ issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active system3_ process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the system3_.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

system3_.exe [all]