.VVV file Trojan Attack on my computer

Dear members,

my computer has been attacked by a trojan called ransome and all my files show to have an extension of .VVV and the file type is VVV file.

I have tried the following;

1. System restore
   
2. Copying the files to another PC.
3. Removing the extension from individual files
4. Deleted .vvv files from regedit.
5. Computer re installation

But non of the options above have worked. And I can't open my files.

Kindly advise.

Thank you.