Europol is supporting http://www.nomoreransom.org
, or http://labs.bitdefender.com/tag/decryption-tool
, which offers decryption keys for a number of ransomware, so people can regain access without paying the ransom!
The tools are released under supervision of the General Prosecutor’s Office (DIICOT) and in collaboration with the internet security company Bitdefender and Europol.
So before using any tool pretending to do that job, check the Europol website to ensure you do not end-up attracting more infections!
So far they have keys for:
Link to Europol news about this: http://www.europol.europa.eu/newsroom/news/free-data-recovery-kit etc ...