Make sure to close any open browsers.
Run a scan in HijackThis. Check each of the following and hit 'Fix checked' (after checking them) if they still exist (make sure not to miss any):
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.fgeycqvxprsni.com/mborzp...dZaod2NarD.html
Restart and post a new HijackThis log.