Just in case you missed or still using ADSL modem for your internet, it might be too late, if not go change the password right away. Not just ADSL modem, but this could happen to anyone with some kind of network hardware to connect to the internet, change your password frequently and and protect your computer with antivirus program and an additional malwares protection program

http://nakedsecurity.sophos.com/2012/10/01/hacked-routers-brazil-vb2012/

adsl modem got hacked how it got hacked and how to prevent