Though several solutions have come out, the WannaCry ransomware that recently infected computers worldwide continues to wreak havoc. If you haven’t updated to the latest version of Windows 10 and have no real-time firewall you’re still in danger of infection. The free tool Wanakiwi is one of the few solutions that can recover your encrypted files, though the conditions to do so are a bit restrictive.
First, it’s essential that you have not restarted the computer after the infection. and not much time can have passed since the file encryption began as the prime numbers used by the encryption algorithm might be overwritten. The other limitation is that the program can only be used on computers running operating systems from Windows XP to Windows 7.
The way you use it is very simple. Open the command line and run the executable (if you add a name before it, it will take it as the PID of the executable that WannaCry is hidden behind). Leave it for a while, and if you’re lucky, all the files that were encrypted will be copied locally, and you’ll see them on your drive with their extension changed to WNCRY.
More info | Developer blog
Wanakiwi for Windows on Uptodown | Download