If you scan your computer using HijackThis program you can be scared by seeing this line:
O2 – BHO: WormRadar.com IESiteBlocker.NavFilter – {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} – C:\Program Files (x86)\AVG\AVG9\avgssie.dll
According to Internet forums this is not a threat but legal part of AVG antivirus software.
