Projeď to Hijack this a pokud tam bude něco z tohodle:

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
O2 - BHO: CAdBlocker Object - {E24AD748-155E-4254-B674-4EDF86E7E1DF} - blank (file missing)
O9 - Extra button: (no name) - {9819CC0E-9669-4D01-9CD7-2C66DA43AC6C} - (no file)
O9 - Extra button: Messenger Backup - {ECC5777A-6E88-BFCE-13CE-81F134789E7B} - C:\Program Files\Messenger Backup\Messenger Backup (file missing)
O9 - Extra 'Tools' menuitem: &Messenger Backup - {ECC5777A-6E88-BFCE-13CE-81F134789E7B} - C:\Program Files\Messenger Backup\Messenger Backup (file missing)
O16 - DPF: {1C3DE665-D259-4C72-9D7D-C51FCB4CCFB9} (Panasonic Network Camera) - http://202.175.10.45/SysCamInst.cab
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O23 - Service: Acronis Scheduler2 Service (AcrSch2Svc) - Unknown owner - C:\Program Files\Common Files\Acronis\Schedule2\schedul2.exe (file missing)

tak dej Fix checked.

V tom threadu řeší úplně stejný vir.