.... and so I had to turn off the antivirusNO
Think about it.
You had to disable the antivirus, because you wouldnt have been infected otherwise. It wasnt YOUR interest that has been described in this need.
I've had some bad experiences with worms in the past
Because you didnt learn from them.
Edit: Succesfully installed nasties could be not detectable anymore by (installed) antivirus programs.