A repository of all current knowledge regarding Cryptolocker
is provided by Grinler
(aka Lawrence Abrams
), in this tutorial: CryptoLocker Ransomware Information Guide and FAQ
Reading that Guide will help you understand what CryptoLocker Ransomware does and provide information for how to deal with it...including prevention, and possibly recover your files. Please note that the guide was updated 08/06/14
to include free keys by FireEye and Fox-IT designed to unlock systems infected by CryptoLocker.
There is also a lengthy ongoing discussion in this topic: Cryptolocker Hijack Program
...from the above topic.
Nathan (DecrypterFixer), Security Colleague Post #3223How to tell if you have the real Cryptolocker: Nathan (DecrypterFixer), Post #2759
I want to make something very clear to any users just now getting to this thread because they were infected by "CryptoLocker"! The real Cryptolocker has been down, and has not returned for awhile now! This means that what ever infection you have, is a new one / Fake one! Before EVER considering paying for the ransom you should always make it first priority to ask on the thread first or PM any member to ask for help! Things that will help us identify your infection is Screenshots of any windows, The Ransom Note, and the EXE if you have it. I cannot stress this enough, you may not have to pay a DIME to get your files back if you take a few moments to ask before paying...
Information about a fake CryptoLocker
can be found in this discussion topic: TorrentLocker Support and Discussion Thread (CryptoLocker copycat)
which includes a screenshot of the infection similar to what you posted above
Rather than have everyone start individual topics, it would be best (and more manageable for staff) if you posted any questions, comments or requests for assistance in that topic discussion.
The BC Staff