How to remove the cssrss virus

Most antivirus programs identify cssrss.exe as malware—such as Microsoft identifies it as Backdoor:Win32/Knockex.H, and Symantec identifies it as Trojan Horse or Trojan.Galapoper.A.

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 cssrss.exe malware

Cssrss.exe file information

The process contains no information about the creator.

Description: Cssrss.exe is not essential for Windows and will often cause problems. Cssrss.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 37,888 bytes (17% of all occurrences), 16,464 bytes and 15 more variants. 
There is no file information. The program has no visible window. It is not a Windows system file. File is hidden. The software listens for or sends data on open ports to a LAN or the Internet. Cssrss.exe is an unknown file in the Windows folder. Therefore the technical security rating is 97% dangerous, however you should also read the user reviews.

Recommended: Identify cssrss.exe related errors

External information from Paul Collins:

Important: You should check the cssrss.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

Trojan-Downloader.Win32.Small.fxa [Kaspersky]
got this one while downloading files. trojan.agent

Summary: Average user rating of cssrss.exe: based on 3 votes with 2 user comments. 3 users think cssrss.exe is dangerous and recommend removing it.

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Best practices for resolving cssrss issues

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

cssrss.exe [all]