How to remove the crssc virus

Most antivirus programs identify crssc.exe as malware—for instance Microsoft identifies it as Trojan:Win32/Sisron or Backdoor:Win32/Sdbot, and Symantec identifies it as Trojan.Zbot or W32.IRCBot.Gen.

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 crssc.exe malware

Crssc.exe file information

Windows Task Manager with crssc
Crssc.exe process in Windows Task Manager

The process known as Windows Security Protection Service appears to belong to software unknown by Microsoft (

Description: Crssc.exe is not essential for Windows and will often cause problems. The file crssc.exe is located in the C:\Windows\System32 folder. The file size on Windows 10/8/7/XP is 46,615 bytes. 
The software has no file description. The file is an unknown file in the Windows folder. The program has no visible window. It is not a Windows core file. The process uses ports to connect to or from a LAN or the Internet. Crssc.exe is able to hide itself and monitor applications. Therefore the technical security rating is 84% dangerous, however you should also read the user reviews.

Recommended: Identify crssc.exe related errors

If crssc.exe is located in a subfolder of the user's profile folder, the security rating is 22% dangerous. The file size is 456,704 bytes. The program has a visible window. The process is loaded during the Windows boot process (see Registry key: User Shell Folders, Run). The crssc.exe file is not a Windows system file. Crssc.exe is able to monitor applications.

Important: You should check the crssc.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

I ran scans in safe mode using Malware bytes and rootkit, also with security essentials, they didnt find anything. I then went too control panel - performance issues and found crssc.exe in my startup group along with yrkpack. I found nothing on the net in regards to yrkpack. Issues I had was on windows start up my CPU would run at 100 percent and the only way too bring the usage down was too open task manager and leave it open. I am running a macbook pro quad core 16 gig ram with windows 7 ultimate on bootcamp. I have also read the 100 percent cpu usage could be due to a corrupt file in my user profile.

Summary: Average user rating of crssc.exe: based on 1 vote with 1 user comment. One user thinks crssc.exe is dangerous and recommends removing it.

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Best practices for resolving crssc issues

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

crssc.exe [all]