hack or virus?

[ntsysadmin]

We have someone that came to us about hosting a site for them.  When we went
to look at their site, before we moved it over to us, we found it wasn't
what they had put on their site.
http://www.e-z-learning.com is the site.  Is this a hack or a virus?   I
have seen this before on someone's site that wanted us to host for them, but
I thought it was someone playing games at the time.



http://www.sunbelt-software.com/ntsysadmin_list_charter.htm