how to remove 2fiy.bat

Avast identifies this rootkit 2fiy.bat and asks if what to do. i say delete but it says to run bootime scanner, which i do. But still on every start it shows the same rootkit. how do i remove 2fiy.bat from my system? kindly help as my computer dosent show any hidden files & drives open in new windows.

thanks.

ThreatExpert Report says that this batch file is related to Virut, a very dangerous file infector.

Submit the file to Alwil.