Like everyone else with a brain said; it's a white-label nameserver for HostGator, not some kind of virus-spreading machine of doom. Don't believe me? Go get a HostGator domain before you post an "authoritative comment" and make yourself look like an idiot.
It seems odd and alarming to me that the website is merely a blank page with this one line of text: "For abuse issues related to the websitewelcome.com domain, please email your complaint with any relevant logs to firstname.lastname@example.org"
These name servers are currently used by www.magicdragonhosting.com which is a new hosting company. I note it was listed on August 15th this year, as per the following:
#846 *.websitewelcome.com 333 2009-08-15 10:52:35
This is prior to my involvement with Hostgator (http://www.magicdragonhosting.com was created on: 19 Nov 2009 06:10:20) and it appears they removed the prior user for spamming!