All of the movie, document, and picture files on my wife's Windows 7 PC have an .ecc extension added to them. I've never seen this before, but I'm assuming that it is some sort of ransomware. I copied the files from her Windows drive to an external drive and she also has an external usb drive that was infected. I did not see any ransom messages when starting her PC and can't figure out which (if any) ransomware she has.
She had a backup that was a year or so old, but I wanted to try and recover the rest of the files. Is there any way to determine which virus she got from the .ecc files themselves?