You could always install overtop of your perating system and put the system files in a new directory. Then afteryou have moved everything over to the new OS, removed the old one.
Thats how my wife was able to keep all of her existing apps and files but get rid of the problem. She had a slightly different issue where she was locked out of everything because of a hijacking app.
You can also send in a report /complaint and other various stuff so the rest of the world knows about it, and at the same time bring exposure to the situation.
http://www.stopbadware.org/