svchoost.exe is known to be a type of malware. The best thing to do is to remove this file, after backing up your hard drive, and scanning for more malware.

TROJ_SVHOOST.A Trojan is a type of malware, and svchoost is linked to it. Adware and viruses can be very tricky. Malware creators know their files will be removed if found, so they sometimes give the files names that are similar to known important files.

This free scan of your hard drive will help you to not delete any important programs.

Since svchoost.exe is running on your hard drive, there is a good chance that more malware is lurking. Get a free scan of your hard drive.