This Chameleon fake Antivirus is looking for the OS version (XP, Vista, Seven) and changes its name and skin:
AVbytes Win 7 Antivirus 2015,
AVbytes Win 8 Antivirus 2015,
AVbytes Vista Antivirus 2015, (...). It detects fake infections and displays alert messages to scare users. It belongs to the
Braviax/FakeRean family.