How to remove the koos virus

Most antivirus programs identify koos.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.

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

Koos.exe file information

There is relatively little known about this process along the lines of the following technical specificaitons.

Description: Koos.exe is not essential for Windows and will often cause problems. Koos.exe is located in a not unambiguous folder. The file size on Windows 10/8/7/XP is 0 bytes. 
The application has no file description. The program has no visible window. File is hidden. Koos.exe is not a Windows system file. The software listens for or sends data on open ports to a LAN or the Internet. Koos.exe is able to hide itself. Therefore the technical security rating is 100% dangerous, however you should also read the user reviews.

Recommended: Identify koos.exe related errors

Important: You should check the koos.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

Opens my outboond to send emails
Causes memory dump/crash in XP (8E)
Rating 100 on my level here. Process ID 3132, cannot quarantine it.
It cant be deleted
not shure but i think its a part of visur/spyware and it cant be deleted
Can not be deleted
  Line Eliasson  
Seems to be ""
part of a false security alert, ultimate defender virus/trojan
it is a vicious virus watch out. this one is fine
  object mgr  

Rating chart

Summary: Average user rating of koos.exe: based on 11 votes with 9 user comments. 3 users suspect danger. 8 users think koos.exe is dangerous and recommend removing it. One user is not sure about it.

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Best practices for resolving koos issues

The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active koos process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the koos.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 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

koos.exe [all]