You are dealing with the newest variant of TeslaCrypt which includes several known versions with various extensions for encrypted files to such as .ecc, .ezz, .exx, .xyz, .zzz, .aaa, .abc, .ccc, .vvv, .xxx, .ttt, .micro as described described here.
Any files that are encrypted with the TeslaCrypt 3.0 will have the .xxx, .ttt or .micro extension appended to the end of the filename. More information in this BC News article:
A repository of all current knowledge regarding TeslaCrypt, Alpha Crypt and newer variants is provided by Grinler (aka Lawrence Abrams), in this topic: TeslaCrypt and Alpha Crypt Ransomware Information Guide and FAQ.
There currently is no way of decrypting the new .xxx, .ttt, or .micro variants of TeslaCrypt 3.0 since they use a different protection/key exchange algorithm and the key for them cannot be recovered...see here. If infected with any of these, backup all your encrypted files, send BloodDolly a private message with a link to few encrypted files after uploading them to SendSpace (see instructions in Post #1) and wait for solution.
There is an ongoing discussion in this topic where you can ask questions and seek further assistance.
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 one of those topic discussions, particularly the last if dealing with one of the newer variants. Doing that will also ensure you receive proper assistance from our crypto malware experts since they may not see this thread. To avoid unnecessary confusion...this topic is closed.
The BC Staff