it is effective against anything that utilizes the same infection tactics of CryptoLocker, including using the %appdata% directories for launching their malicious payload to trojan based delivery with false file extensions. I don't really know what all that is though, there is no 'list.' I can tell you that over 400 various 'in the wild' samples (lots of variants on the same theme) were studied that CryptoPrevent should be effective against. There is exponentially quite a bit more malware out there though!!