proxy.cjb.net need some information
 

I'm working on a new project, just checked yahoo and my site has spot 1 for the main keyword, however directly under it I see my url www.mysite.com.proxy.cjb.net

I already figured out that proxy.cjb.net offers some sort of anonymous surfing.
Google seems to have banned all these proxy.cjb.net urls but yahoo doesn't.

Can't I get that proxy.cjb.net url removed from yahoo?

And how do they do it? How does it work?
Any insight on this is more than welcome.

Thanks.

if they get your site why is it such a worry?

Not a huge problem, it's just weird to see that url right beneath the main url when doing a query for my main keyword but I think the proxy url will drop soon when yahoo starts finding enough backlinks for the main url page of my site + when I click that result not only I see my site but popups are opening and all sorts of garbage so it's not good for my site's image.