Ransomware is taking the world by a storm! With too many ways to get the malware's into users system, this Chrome version Ransomware is really going to be a difficult one! I had previously reported about http://ransomwares.net/netflix-ransomware-login-generator/ Netflix Ransomware where the users are given free access to Netflix (Fake access) to do the trick and install the malware!
Try a previous version feature.
https://www.virus-entferner.de/2017/01/15/spora-ransomware-virus-entfernen/ The Windows OS provides a built-in option of recovering previous versions of files. It can also be applied to folders. Just right-click on a file or folder, select Properties and hit the tab named Previous Versions. Within the versions area, you will see the list of backed up copies of the file / folder, with the respective time and date indication. Select the latest entry and click Copy if you wish to restore the object to a new location that you can specify. If you click the Restore button, the item will be restored to its original location.