A decryptor for the eCh0raix Ransomware has been released that allows victims to recover encrypted files on their QNAP NAS devices. Using this decoder, victims can brute force the decryption key to encrypted files and use it to restore their files. The current version of the decryptor only supports victims infected before July 17th. It should be noted, though, that the current version only support victims who were infected with the ransomware on June 17th and BloodDolly is working on getting it fixed for newer versions.
Source: https://www.bleepingcomputer.com/ransomware/decryptor/ech0raix-ransomware-decryptor-restores-qnap-files-for-free/