TeslaCrypt includes several known versions with various extensions for encrypted files to include: .ecc, .ezz, .exx, .xyz, .zzz, .aaa, .abc, .ccc, .vvv, .xxx, .ttt, .micro as described described here.
Any files that are encrypted with the newer variant of TeslaCrypt will have the .xyz, .zzz, .aaa, .abc, .ccc or .vvv extension appended to the end of the filename. The .aaa/.abc/.ccc/.vvv variants leave .html, .txt, files (ransom notes) with names like Howto_Restore_FILES.txt, RECOVERY_FILE_[random].txt, restore_files_[random].txt, recover_file_[random].txt, Howto_RESTORE_FILES_[random].txt, howto_recover_file_[random].txt, _how_recover_[random].txt, how_recover+[random].txt . TeslaCrypt 3.0 will have the .xxx, .ttt or .micro extension appended to the end of the filename.
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
Information for decrypting files with .ECC, .EZZ, .EXX, .XYZ, .ZZZ, .AAA, .ABC, .CCC, or .VVV extensions can be found here and in this support topic. Instructions how to recover the key for decryption are also included in TeslaDecoder.zip.
There is an ongoing discussion in this topic where you can ask questions and seek further assistance.
Support for decryption requests can be posted in this topic:
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