Vst Or Instrument For This Sound

Hi,
can you point to some VST or xrni or even a way to synthesize a sound like the one with very low frequency, which starts around 00:07, in this song?

http://www.youtube.com/watch?v=Yrrzf_DYP1Q

I guess its just some kind of saw with lopass filter on it…
You can find some saw’s samples in instruments/chipsounds