UltraCleaner.us is a browser hijacker that promotes the rogue parasite System Security, SystemSecurity, System Security 2009. UltraCleaner.us corrupts websites visited without the user’s consent due to the Trojan that hijacks the web browser on the infected computer system. When UltraCleaner.us is installed, all pages are redirected to that address. UltraCleaner.us web page will welcome its victims by displaying fake warning messages about non-existent infections on your computer system. UltraCleaner.us will go even further and trigger a fabricated online scanner claiming to scan your hard drives. This scan will inform you of numerous infections on your computer system. UltraCleaner.us will persistently recommend you to install System Security scam in order to get rid of the fake detections. You should not believe such fake online scans like UltraCleaner.us and rogue anti-spyware programs like System Security. Remove them as soon as possible!