When i ran the bootscan all it said was that i had w32:trojan-gen , i had not been even on the net, i only installed my win xp home, and all my hardware drivers, then went straight to and installed the avast av prog , was a first time use for me so i was checking out the prog and scheduled a boot scan , i ran it and that was when it came up , i later after deleting the file w32:trojan-gen ran a scan in windows , the system came up clean , but as of today if i try to run a scan in windows it re-boots me, although it still comes up clean in a boot scan it never specified any specific file although in my virus chest it put rundll.exe and 3 others under the sys file section i run avast and norton personal filewall .