Look on the announcements Topic on the first page there
is a question called c:\windows\nail.exe
This has at least 3 different methods last time i checked
on how to remove Aurora,Ive downloaded Aurora and cleared
it myself within 20 mins using the fixes that are posted.
Im suprised its still causing so many problems and i also
think with it being out for 2 or 3 months now most
spyware scanners will detect this and probably remove it
if used in safe mode (Spybot,Adaware,Ewido,Spysweeper
etc..)
Good Luck
Andy