I have a user that had a shared connection to a file server, all of the files became encrypted and inaccssible.
Here is what SEP has found
Trojan.Maljava!gen17
Suspicious.Cloud.5
This has corrupted the contents of an entire shared folder.
It also left a text file with the following
All files including videos, photos and documents on your computer are encrypted.
Encryption was produced using a unique public key generated for this computer. To decrypt files, you need to obtain the private key.
The single copy of the private key, which will allow you to decrypt the files, located on a secret server on the Internet; the server will destroy the key after a time specified in this window. After that, nobody and never will be able to restore files.
In order to decrypt the files, open site 4sfxctgp53imlvzk.onion.to/index.php and follow the instructions.
If 4sfxctgp53imlvzk.onion.to/index.php is not opening, please follow the steps below:
1. You must download and install this browser http://www.torproject.org/projects/torbrowser.html.en
2. After installation, run the browser and enter the address: 4sfxctgp53imlvzk.onion/index.php
3. Follow the instructions on the web-site. We remind you that the sooner you do, the more chances are left to recover the files.
IMPORTANT INFORMATION:
Your Personal CODE: 00000001-1292FB9D