I've been fucking around with this virus I somehow managed to get (Win32.Bundpil or Gamarue) and it screws up my pendrive. NONE of the anti-viruses I tried could clean my laptop, let alone identify this shit and I went as far to search for the infected files myself (and found them).

>What I've tried so far
>Avast!
Made my RAM dry heave and spammed me with shitty pop-up messages

>Comodo Internet Security
Couldn't identify the files

So what is the best, non-bullshit and hopefully free antivirus software out there?
Also how do I get rid of this virus?