NJJ.EXE malware info?

A friend of mine got hit with a malware item called njj.exe on his home PC.  It was embedded in some jpeg's which he downloaded from a website.  His McAfee protection was able to perform a recover & cleanse on his PC system.  I'm a subscriber to NAV and can't seem to find info on the Symantec site about this particular malware item. Would anyone know where I can find data in the NAV knowledge base about this one?  (I apologize if this information is staring me in the face. Entering njj.exc in the search field yielded no hits for me.) Info appreciated.

Thanks.

Ed