is this prove enough?
http://imageshack.us/photo/my-images/29/adressbook.jpg/Otherwise you can come and see if i really possess the wallet.dat ;-)
I know the chances are very little to see the money again...
It turns out that the infection came via teamviewer application for remote control, either 0day exploit or brute force and then the intruder could execute the trojan
In case you're not aware of it, you can prove ownership of any address by signing a message with the corresponding private key. You can use
brainwallet.org to do this. You can also use the
bitcoind's signmessage command.