General Picture of Virus:Win32/Xorer.X
Win32/Xorer.X is a virus that is so polymorphic that has not only worm capabilities by dropping copies of itself in writable drives but also rookit components that enables it to avoid detection by antivirus program. Virus:Win32/Xorer.X takes slow speed to infect your computer yet it is destructive as it is able to encrypt and then append its virus code to the original file which potentially make it harder to restore the original file. It also runs the archiving program Winrar in an attempt to infect executables located in the archived files. From the above, you can tell that your system based files are simply destroyed.