The domain ' ' doesn't resolve to an IP address, however the 2 name servers for that domain are ns1.agnitumhost.net and ns2.agnitumhost.net , some results ...
=====================
Searching for ns1.agnitumhost.net NS record at l.root-servers.net [198.32.64.12]: Got referral to g.gtld-servers.net. (zone: net.) [took 34 ms]
Searching for ns1.agnitumhost.net NS record at g.gtld-servers.net. [192.42.93.30]: Got referral to ns2.agnitumhost.net. (zone: agnitumhost.net.) [took 49 ms]
Searching for ns1.agnitumhost.net NS record at ns2.agnitumhost.net. [203.174.83.110]: Timed out. Trying again.
Searching for ns1.agnitumhost.net NS record at ns1.agnitumhost.net. [203.174.83.109]: Timed out. Trying again.
Searching for ns1.agnitumhost.net NS record at ns1.agnitumhost.net. [203.174.83.109]: Timed out. Trying again.
Searching for ns1.agnitumhost.net NS record at ns2.agnitumhost.net. [203.174.83.110]: Timed out. Trying again.
Searching for ns1.agnitumhost.net NS record at ns2.agnitumhost.net. [203.174.83.110]: Timed out. Trying again.
Searching for ns1.agnitumhost.net NS record at ns1.agnitumhost.net. [203.174.83.109]: Timed out. Trying again.
=====================================
If you do a domain dossier an the company that has that IP block, they are in Singapore, and there is an email address for spam, abuse, etc.
Might be worth sending them an email ??
Also the company that has the domain registered is "EstDomains" (
http://estdomains.com ), and they have a 'contact us' and 'report abuse' functions on their website.
I realise the domain 'george-walker-bush.info' is not hosted, only registered, but it may help to contact the registrar, if no help there, it may be a metter for ICANN ??