that is actually good software that is open source, that is why it may look sketchy. and the iomap64.sys, is a component of the asus software asus mart doctor, like mojo jojo said. So maybe look under C:/Program Files/Asus/Asus Smart PC Doctor/ (C:/Program Files (x86)/Asus/Asus Smart PC Doctor/ too though) and delete everything you find. That should fix the problem