Parasites
Bots that serve no purpose other than to increase your bandwidth. From our logs we have determined that the following bots fall into that category. Recommended for robots.txt file or the Ip ranges into the firewall or at least into a htaccess file
User-agent: CazoodleBot
Disallow: /
Firewall entry - CazoodleBot
72.36.114.242
72.36.114.246
72.36.114.250
72.36.115.48
72.36.115.50
72.36.115.53
72.36.115.59
72.36.115.60
72.36.115.62
72.36.115.68
72.36.115.69
72.36.115.70
72.36.115.74
72.36.115.76
72.36.115.78
72.36.115.79
User-agent: Charlotte/1.0b
Disallow: /
Firewall entry - Charlotte/1.0b
208.111.154.100
208.111.154.21
208.111.154.22
208.111.154.23
208.111.154.24
208.111.154.25
208.111.154.27
208.111.154.28
208.111.154.29
208.111.154.30
208.111.154.50
209.249.86.17
209.249.86.210
User-agent: VoilaBot
Disallow: /
Firewall entry - VoilaBot BETA 1.2
193.252.149.15
193.252.149.16
217.128.171.242
81.248.138.214
81.48.30.219
81.50.254.210
81.51.37.123
81.52.143.15
81.52.143.16
81.56.133.157
86.195.194.85
86.202.155.6
86.205.199.98
86.209.205.54
86.210.162.38
86.220.164.217
User-agent: Twiceler
Disallow: /
Firewall entry - Twiceler
208.36.144.10
208.36.144.6
208.36.144.7
208.36.144.8
208.36.144.9
38.99.13.121
38.99.13.122
38.99.13.123
38.99.13.124
38.99.13.125
38.99.13.126
38.99.44.101
38.99.44.102
38.99.44.103
38.99.44.104
38.99.44.105
38.99.44.106
64.1.215.162
64.1.215.163
64.1.215.164
64.1.215.165
64.1.215.166
Pingdom GIGRIB
This is another nasty piece of work "Pingdom GIGRIB" and belongs directly into a htaccess blocking script. Its easy, go monitor your own shit stay out of my backyard.
libwww-perl
A very bad news infected machine trying to download infastation onto your machine and belongs directly into a htaccess blocking script. Blocking by Ip is too much work, user agent works best.