I can't find much information on this; It appears to be some type of browser hijacker, however if it is managing to change your host in a standalone application it could have done a lot worse.
Check your dial-up networking settings (if applicible) and make sure your account hasn't changed, and that it is dialing the correct number. Download an anti-spyware tool like AdAware from tucows or download.com and scan your system.
Hope that helps.
