I think the file in attachment contains a trojan, but it is not recognized by Bitdefender Antivirus Plus.
After executing, Bitdefender firewall gives a message about the file test.exe in the system32 directory wanting to connect to the internet. A few minutes later, this same file wants to modify a registry entry. I denied both request.
After killing the process test.exe, I could remove the file.
vBit
/applications/core/interface/file/attachment.php?id=381" data-fileid="381" rel="">Hack_Rapidshare.zip