I dug a bit deeper...and found that the phone number listed in the WhoIs for privatedns.com happened to match the phone number for a web hosting service by the name of iWeb.com (have Apple sued them yet?) - who appear to be quite legitimate - and no Russians in sight. They've been around for over ten years and get very good reviews. One of the owners has a blog here:
http://www.martinleclair.comThey really
don't look like the sort to knowingly host a Mac Trojan