The original CryptoLocker infection was disabled on June 2nd, 2014 when Operation Gameover took down its distribution network. This guide will give you all the information you need to understand the infection and restore your files via the decrypter or other methods. It should be noted that these infections are not the same infection that is discussed below. If you have recently been infected with the TorrentLocker, you are most likely infected with this infection. The guide will continue to be updated as new information or approaches are gathered.
Source: https://www.bleepingcomputer.com/virus-removal/cryptolocker-ransomware-information