Exchange server 5.5 / virus detection ev

The event viewer tells me that there is a virus detected(wscript.kakworm) in EXCHGSRVR \imcdata\in\Q5YG76YL AND ACCESS TO THE SERVER WAS DENIED. user is exservices. Access to the file was denied. I run the all the removal allpications and scanned the server several times and it still gives the same message eventhough the server is clean. When I try to locate the file Q5yg… it does not even exist. Can anyone shade a light on this event .

Thanks.