That might not be Virtumonde you know? I've had a few bugs advertise themselves as Virtumonde when they were in fact other bugs such as Smitfraud.
Be careful, you're dealing with more than an ant, you're dealing with termites.
EDIT: You know, just thought of this. If you're a computer savvy guy you can try something else. However this only works if you have a Windows Installer disc (2000 or above) and if you have a secondary hard drive (Make sure to move all files on this HD elsewhere, because you're about to format the HD). If you have a secondary hard drive, take it out. Change it's jumper setting to make it primary. Now take out your primary, switch it's jumper setting to secondary. Now plug them back in appropriately (Primary on Primary Master, Secondary on Primary Slave)
Now during boot-up, install Windows on your new primary hard drive. After it's installed, forget about updates. Get yourself some AV software such as the free trial of NOD32. Then scan your now secondary hard drive for the bug. Do the same with other software such as Ad-Aware 2008, Spybot, Anti-Rootkit software.
The reason I'm suggesting this is simple. While you are booted on your primary hard drive (which is obviously infected) certain files are locked to the scanner, these are typically system log files and critical OS files. However, the bug could theoretically embed itself in some of these files. With your old primary hard drive as a secondary, these files will not be locked, enabling the scanner to scan EVERYTHING.
However, again, this is only if you have a windows installer disc of 2000 or later, and if you have a secondary hard drive.