i have the same exact problem,i clicked on a file and nothing happened..after this when i restarted pc,everything crashed,my antivirus (antivir)and firewall (comodo) and i can't run hijackthis or gmer. i analyzed the file on virustotal.com and it said me is infected by beagle-zv. in task manager i see my cpu usage that is always at 99% infact my pc is pretty slow and then i got internet off...i can't open any site.now i'm writing from laptop.
i tried some utilities to remove that virus but didn't find anything.
i followed instruction of that topic,i downloaded combo-fix on a pen and then i downloaded on the desktop of the infected pc.but when i click it,it opens a little window and then nothing happens...
i hope someone could help me
thanks for the patience