It's completely devastating me. Yesterday (or was it Tuesday? I don't even remember) I was left speechless and shocked by this nasty thing. What really destroys me is that I've dowloaded anything in the last week, or read emails. I've always been very careful about my Web habits, so I can't just figure out how I got that.
However, I got infected just booting my PC as I normally do every morning. Windows performed a CHKDSK command, and after what seemed an eternity my system started with just no usual desktop image, but with the README.bmp instead. It took me quite some time to understand what was going on, but unfortunately in the meanwhile my files were encrypted. I did a deep scanning using the TendMicro HouseCall, with no result. Then I tried with Avast (which detected some adwares and the usual things), but not the real thing.
Then, reading this site, I heard about Malwarebytes, so as a last resort I downloaded it and performed a deep scan... that seemed to work.
It pointed out, among other things, a trojan.crypt located in a file called "rad93C3E.tmp.dll" in my Documents and Settings folder. I just quarantained it, being not so sure about what to do next. I was tempted to remove it, but I'm too scared about crashing something.
Obviously I don't want to pay these criminals. They have no right to hold me captive in my own house, let alone all my data. I just hope someone will find a way to resolve this awful problem.
Sorry for my long post, I'm just frustrated.