Originally Posted by Ried

More than one way to skin a cat.

I am a bit surprised Norton didn't pick it up--Avira has it in it's database, as does TrendMicro.

For tidiness sake, run a scan with HijackThis.exe and 'check' the following orphaned entries:

O2 - BHO: (no name) - {602ADB0E-4AFF-4217-8AA1-95DAC4DFA408} - (no file)
O3 - Toolbar: (no name) - {7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} - (no file)

Click 'Fix Checked' and close HijackThis.