Pete

You shouldn't normally see anything of the site as the size is set to 0 in the iframe. You'd only know it's there if you look at the source for the page or if you have something like Adblock that can show you things it's blocking.

It may be doing nothing more than racking up hits for the 2345 site or collecting ip info as mentioned above. Nothing more malicious seems to be emanating from it at the moment (though it's never a good thing if people are collecting your ip addresses!)

Mick