Pirated versions of DMA-locker are doing the rounds, but there is some good news. All the encrypted data can be decrypted with the same public key and we can give it to you. Fake DMA Locker is based on the binary of the original DMA. Locker 3.0, but the main difference between the original and stolen DMA is a different marker at the beginning of the encrypted file. So far, the threat actor responsible for distributing it has not changed the key so, the prospects of getting data back are still big.”]
Source: https://blog.malwarebytes.com/cybercrime/malware/2017/05/stolen-version-dma-locker-making-rounds/