Victims of the CoinVault ransomware might be able to decrypt their files with a free tool released by Kaspersky Lab together with the Dutch police.

The tool can be found at The application uses decryption keys found by the Dutch police as part of an investigation.
The National High Tech Crime Unit (NHTCU) of the Dutch police recently obtained a database from a CoinVault command-and-control server containing decryption keys, the Dutch police said in a news release. The information obtained from that database allowed Kaspersky to build a decryption tool.

The tool isnít 100 percent effective, but, as the investigation advances, the police hope to discover new keys and improve the toolís success rate, said Kaspersky researcher Jornt van der Wiel, who helped build the decryption tool.
Files encrypted by CoinVault ransomware? New free tool may decrypt them | PCWorld