It is a trojan called Proton that was bundled with copies of Handbrake downloaded from the official Handbrake site during a five-day period. The Handbrake virus isn’t a virus at all, because it doesn’t self-replicate.
All programs are easy to use and provide you with an intuitive interface which instructs you on opening files with the file extension BUP. For Linux VLC player works well for opening BUP files. If you use Mac OS X, you can use Apple DVD Studio Pro.
