# 2013/03/25 http://qb5.2ch.net/test/read.cgi/sec2chd/1355966955/ etc.
deny from 60.236.192.0/21
deny from 220.102.66.0/23
deny from 202.102.70.0/23
deny from 220.102.94.0/23
deny from 220.102.128.0/23
deny from 220.102.148.0/22
deny from 220.102.156.0/22
deny from 220.102.174.0/23
deny from 220.102.176.0/23
deny from 221.170.10.0/23
deny from 221.170.12.0/22
deny from 221.170.16.0/20
deny from 221.170.32.0/21

プロバイダさんの対処があるか、最長3カ月です。
次に再発したら6カ月〜にしたいと思います。