I got this problem and spent about 4 hours on the forums trying to fix it. Thank you for finding what files did it. Also check your System32 for mouse.dll and wzcsvbc.dll (NOT wzcsvc) these have also been deemed to be a cause of the problem. If you are uncomfortable w/ messing w/ your computers programming, a workaround is to rename your wow.exe to something like wowi.exe this will prevent this "virus" from executing. This is not a solution just a temporary fix until you can get someone who knows what they are doing on your computer. Also just to be safe, using a secure computer (pref. one w/o WoW installed) go onto the blizzard website and change your password.
Thanks again for finding and solving this problem, it basically rendered my custom UI useless and now i get to rebuild it
Hope this helps!