Please tell me what is inside. I actually clicked on the program... really anxious right now...
It's a .net program. I don't have the proper tools to disassemble that, at least not for now. But if it is similar to what the other people got it's probably a dropper that downloads another program from somewhere and executes it. So it's impossible to know what that program does unless you actually get hold of it and look at it, but most probably it would be some sniffer and/or rootkit of some kind.
If you want my professional advice it would be: Don't take any chances with this. The attacker could be a script kiddie and the malware possible to remove, but why risk it? Boot from a CD and back up any data you do not have previously backed up. Take special care to backup your bitcoin wallet and any password files you use. Wipe your system completely and reinstall your operating system. Take care not to reinstall anything executable from whatever backups to took after you got infected.
Never run software from strangers on the Internet ever again.
Unless you opened your wallet and entered your password after you run this malware, the attacker can not get hold of your coins. Consider this a lesson and yourself lucky under the circumstances.
Never run software from strangers on the Internet ever again.
And back up your data.