Amin Muhammad

Dear all, I tried to install Kaspersky trial version after I saw strange behavior in my pc and after checked my pc I found many files infected by "virus.win32.renamer.j" * and my questions here: -First Is this kind of virus " Renamer" is a real virus or just cracked file or malicious software as I saw many infected files is already ( keygen , crack or even patch) files. - Second What is the effect for that kind of virus ( not all viruses at general)