Here is an interesting question I found out there in the net.
Where can I find a open source Unix download for free, every time I find a new one I get a virus from it, it really sucks
I suppose this person is not picking up the source code from a relizble source. If you want to find the download, the best places to visit are the links on the Blogroll on the right of this page. You will not pick up a virus from these folks.