Are you sure that's the name?
Variants include (but not limited to): VaultCrypt, TeslaCrypt, CTB-Locker, CryptoWall, KEYHolder, CryptoLocker, Petya, etc.
Rolling back won't work - the files are encrypted. You need to find out which variant it is so that you can try to decrypt the files if possible (as well as remove the malware in the first place).