[Tcp/Ip:168.143.112.109]
[Brows:Mozilla/4.78 (TuringOS; Turing Machine; 0.0)]
例の荒らしは、こんなログでした。
ドメインサーチで検索したところ
% Rights restricted by copyright. See http://www.apnic.net/db/dbcopyright.html
% (whois6.apnic.net)

Verio, Inc. (NET-VRIO-168-143)
8005 South Chester Street
Englewood, CO 80112
US

Netname: VRIO-168-143
Netblock: 168.143.0.0 - 168.143.255.255
Maintainer: VRIO

Coordinator:
Verio, Inc. (VIA4-ORG-ARIN) vipar@verio.net
303.645.1900

Domain System inverse mapping provided by:

NS0.VERIO.NET 129.250.15.61
NS1.VERIO.NET 204.91.99.140
NS2.VERIO.NET 129.250.31.190

********************************************
Reassignment information for this block is
available at rwhois.verio.net port 4321
********************************************

Record last updated on 26-Sep-2001.
Database last updated on 23-Jan-2002 19:55:55 EDT.

The ARIN Registration Services Host contains ONLY Internet
Network Information: Networks, ASN's, and related POC's.
Please use the whois server at rs.internic.net for DOMAIN related
Information and whois.nic.mil for NIPRNET Information.

なんだこりゃ？