How the Virtumundo is being distributed

Hello Everybody

I want to do some sort of research on the Virtumundo, vundo , Virtumonde etc..

So I am eager to know how this product is being distributed, is this is bundled with any free software or being downloaded from a website. Since i started about virtumundo, I found that a site newtonknows.com was the one from the virtumundo Inc. was spreading it with their search bar newtonknows 1.6 but that is no longer available, The authors of newtonknows stoped everything. So if anyone knows about where the victims of this get that, I mean from website, P2P, bundled with any free software etc..
Almost the last internet activity which makes you have Virtumundo

Thanx for your inputs

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noble