Hi, a friend brougt me his computer a HP Pavillion 511w running win xp home, the computer is infected with msblaster, but it seams that it has another virus aswell. what makes me think that there is a nother virus is that when i press Alt+CTRL+Del it shows the thask manager screen only for about 3 seconds and i see a file named PUP.exe with a visual basic kind of icon also when im trying to open regedit it closes in afew seconds does anyone knows of a virus that does what i just discribed. I Googled for PUP and Pup.exe and nothing out of the ordinary.

Thanks in advanced.