How to remove the libsysmgr virus

Most antivirus programs identify libsysmgr.exe as malware.

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.

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Libsysmgr.exe file information

The process itself does not contain any references to its author. However, a few interesting pieces of information are available from other sources.

Description: Libsysmgr.exe is not essential for Windows and will often cause problems. The libsysmgr.exe file is located in the C:\Windows\System32 folder. The file size on Windows 10/8/7/XP is 97,795 bytes. 
It is a file with no information about its developer. The program has no visible window. The libsysmgr.exe file is an unknown file in the Windows folder. The software starts upon Windows startup (see Registry key: MACHINE\RunServices, MACHINE\Run). The file is not a Windows system file. The software uses ports to connect to or from a LAN or the Internet. Libsysmgr.exe is able to monitor applications. Therefore the technical security rating is 100% dangerous, however you should also read the user reviews.

Recommended: Identify libsysmgr.exe related errors

External information from Paul Collins:

Important: You should check the libsysmgr.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

seems to disable my antivirus
connects somewhere in internet, don't let me edit regisrty
startup as a system process. cannot be terminate with Ctrl Alt Del End Task.
  John   (further information)
It installs itself during a lengthy download process of a pdf file through a dialup.
  Houston User  
Does not let me open regedit,msconfig.starts automatically. Can not disable it unless started in safe mode. Found in system folder. My OS: Windows XP
disables antivirus and taskmgr, and other useful programs
dangerous if infected by W32.Donk.S
  Major Bummer  
Just deleted it. Delete it in Task Manager by End Process Tree, not End Process - Go to System 32 and remove it - go to Registry under Microsoft/ Windows Current Version/Run and delet it there - Check other Run Once, etc. and remove all traces Seems to have done the trick
  richard riewer  
very dangerous takes over registry
  richard riewer  

Rating chart

Summary: Average user rating of libsysmgr.exe: based on 10 votes with 9 user comments. One user thinks libsysmgr.exe is essential for Windows or an installed application. One user thinks it's neither essential nor dangerous. 2 users suspect danger. 6 users think libsysmgr.exe is dangerous and recommend removing it. One user is not sure about it.

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Best practices for resolving libsysmgr issues

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

libsysmgr.exe [all]