Removal of Win32.Qozah.3361 virus

Out of the blue, my computer seemed to be running slow, didn't want to 'recognise' my HP printer and ZoneAlarm seemed definitely odd ! (ZA didn't want to load up automatically at start up) This seemed to improve somewhat the following day, as did printer operation. This may or may not be a coincidence.

A normal ZA virus scan found nothing so I repeated the scan at the much slower 'byte level' option. This time it found Win32.Qozah.3361 ( "high risk ") but reported that there was no treatment available (quote) "not yet a way to automatically remove the virus without risking the integrity of the computer or other files" and suggested looking on the internet for a solution.

Are you familiar with this virus ? If so what does it do, wpould it cause slow operation and is there a known solution ?

On the ZA report, the path (presumably for the virus location) was given as C:\System Volume inf......

Any advice appreciated