As you know, when somebody ask for a nonexistent domain name like www.dfadfafasdfas.com, obtains a message telling that the domain does not exist.
Well, from now and thanks to our friends of Verisign, you’ll be directed to one of their advertising sites. And thanks again to this people fight against spam, network troubleshooting, etc will be more difficult…
References:
This link provides more insightful info regarding this issue…