Kaspersky has released an updated decryptor for the Shade Ransomware (Troldesh) that allows all victims who have their files encrypted to recover them for free. The ShadeRansomware, otherwise known as Troldesh, is an old ransomware that has been infecting victims since 2014 and was known to be the most distributed ransomware via email. Last weekend, the Shade operators announced that they had shut down their operation at the end of 2019 and were now releasing their master keys and over 750,000 decryption keys for their victims.
Source: https://www.bleepingcomputer.com/news/security/shade-ransomware-decryptor-can-now-decrypt-over-750k-victims/