Rugj virus is focused on the cryptocurrency-extortion message that gets delivered to the screen immediately after the file locking procedures. Ransomware is a silent, but dangerous virus that aims to get money from victims, so it starts with locking your files once the system is infected. This is the process during which encryption algorithms get used, and the original filename is changed. Once encryption is complete, files receive the .rugj appendix, _readme.txt file gets delivered. All of those pictures/documents become locked, unopenable, but not fully damaged as you would think.