Downloader.Dromedan!gm

hi

I'm using windows Vista 64bit with service pack 2 with Norton Security 22.2.0.31.  I've installed all of the latest window updates.  Today Norton security detected Downloader.Dromedan!gm  when it ran a quick scan. I followed the instructions and once the scan was complete I did the reboot as requested.  After that I did a complete scan of my system only for Norton to find the virus twice again. Norton tells me the virus has been removed and to reboot.  After rebooting I login again only to find the virus has not been removed but Norton has detected it again. Just to add I ran Norton Power Eraser and it found a file called mscamyruj.exe which it removed.

Any help finding a solution to get rid of the virus would be most helpful.

regards

Monco