Заблокировать данного бота прсто. Добавляем в .htaccess строки

Order Allow,Deny
Allow from all
Deny from 208.115.96.0/24
Deny from 208.115.97.0/24
Deny from 208.115.98.0/24
Deny from 208.115.99.0/24
Deny from 208.115.100.0/24
Deny from 208.115.101.0/24
Deny from 208.115.102.0/24
Deny from 208.115.103.0/24
Deny from 208.115.104.0/24
Deny from 208.115.105.0/24
Deny from 208.115.106.0/24
Deny from 208.115.107.0/24
Deny from 208.115.108.0/24
Deny from 208.115.109.0/24
Deny from 208.115.110.0/24
Deny from 208.115.111.0/24
Deny from 208.115.112.0/24
Deny from 208.115.113.0/24
Deny from 208.115.114.0/24
Deny from 208.115.115.0/24
Deny from 208.115.116.0/24
Deny from 208.115.117.0/24
Deny from 208.115.118.0/24
Deny from 208.115.119.0/24
Deny from 208.115.120.0/24
Deny from 208.115.121.0/24
Deny from 208.115.122.0/24
Deny from 208.115.123.0/24
Deny from 208.115.124.0/24
Deny from 208.115.125.0/24
Deny from 208.115.126.0/24
Deny from 208.115.127.0/24