Ransomware called S!Ri and TrendMicro discovered a new ransomware called MicroCop that can be decrypted. This ransomware will encrypt your data using DES encryption and prepend all of the encrypted files with the Locked.String. This means that a file called test.jpg will be renamed after it is encrypted to Locked.test.jpg. It will then change the victim’s wallpaper to a background that shows a picture of Anonymous. The victim stole 48.48 bitcoins from them and they want it back before they will decrypt the files.
Source: https://www.bleepingcomputer.com/news/security/decrypted-microcop-ransomware-demands-48-bitcoins-to-get-your-files-back/