the only cure at the moment is having backup or pay. :-\
all the smart brains in all the worlds AV labs are trying to find a solution…
CryptoLocker. http://en.wikipedia.org/wiki/CryptoLocker
securelist http://www.securelist.com/en/blog/208214109/Cryptolocker_Wants_Your_Money
bleepingcomputer http://www.bleepingcomputer.com/virus-removal/cryptolocker-ransomware-information