Security Problem

Well i have a portal name GamingPT and my wordpress is being attacked by bad ad bots.

I’m trying to ban the bots from enter the site by deny the access in .htaccess but they are too many.

Plugins aren’t the solution because the bots spend a lots of the machine load by uploading the web-site and that slows the machine a lot!

Here is the .htaccess with the list of bots! Please help me! And sorry my english!

Order Allow,Deny
Deny from 93.174.93.197
Deny from 91.201.66.6
Deny from 193.105.135.37
Deny from 94.228.220.91
Deny from 193.137.65.98
Deny from 211.7.6.33
Deny from 200.189.198.22
Deny from 89.20.132.90
Deny from 212.98.173.110
Deny from 213.5.71.12
Deny from 60.217.232.87
Deny from 184.75.34.234
Deny from 60.217.248.155
Deny from 24.183.0.128
Deny from 24.239.99.22
Deny from 85.194.127.11
Deny from 95.133.85.87
Deny from 94.102.49.89
Deny from 58.185.166.243
Deny from 213.191.15.100
Deny from 93.174.93.5
Deny from 190.144.53.138
Deny from 60.217.248.146
Deny from 60.217.232.37
Deny from 69.32.146.223
Deny from 178.63.23.70
Deny from 60.217.249.12
Deny from 216.45.58.187
Deny from 188.92.75.82
Deny from 95.133.90.114
Deny from 68.198.39.64
Deny from 188.126.88.250
Deny from 193.194.83.31
Deny from 119.70.40.102
Deny from 74.63.81.11
Deny from 195.39.172.135
Deny from 96.31.86.184
Deny from 218.204.29.110
Deny from 91.186.211.106
Deny from 166.111.142.79
Deny from 189.105.8.93
Deny from 72.188.140.45
Deny from 109.62.140.146
Deny from 166.111.142.79
Deny from 91.186.211.106
Deny from 218.204.29.110
Deny from 200.81.19.45
Deny from 81.73.123.91
Deny from 91.67.31.112
Deny from 91.210.105.127
Deny from 91.124.40.28
Deny from 213.0.89.8
Deny from 81.21.249.98
Deny from 194.60.69.1
Deny from 94.169.126.17
Deny from 91.83.40.188
Deny from 118.97.48.185
Deny from 109.62.130.30
Deny from 97.66.154.58
Deny from 201.91.21.108
Deny from 200.175.79.129
Deny from 201.20.20.27
Deny from 222.177.16.81
Deny from 213.144.204.98
Deny from 98.126.33.98
Deny from 201.72.78.11
Deny from 113.93.28.67
Deny from 38.99.65.38
Deny from 60.217.232.36
Deny from 216.16.209.195
Deny from 74.82.170.215
Deny from 200.6.237.250
Deny from 196.202.101.130
Deny from 122.215.63.196
Deny from 68.233.227.27
Deny from 201.44.105.114
Deny from 213.242.224.238
Deny from 202.108.50.75
Deny from 91.201.66.55
Deny from 91.124.37.162
Deny from 80.73.197.193
Deny from 60.217.248.158
Deny from 80.233.223.59
Deny from 202.14.181.11
Deny from 189.105.35.10
Deny from 72.254.128.202
Deny from 216.157.208.146
Deny from 64.34.172.46
Deny from 194.44.169.2
Deny from 92.106.0.57
Deny from 123.125.67.228
Deny from 84.136.165.95
Deny from 220.181.7.101
Deny from 123.125.67.225
Deny from 78.120.132.196
Deny from 178.94.35.57
Deny from 83.114.235.85
Deny from 123.125.67.224
Deny from 172.20.253.255
Deny from 95.108.240.251
Deny from 184.73.235.81
Deny from 212.42.123.64
Deny from 187.111.15.230
Deny from 95.133.120.173
Deny from 95.68.66.101
Deny from 212.45.5.172
Deny from 99.194.95.246
Deny from 77.76.25.8
Deny from 221.130.17.56
Deny from 129.228.15.142
Deny from 144.140.53.252
Deny from 74.101.9.12
Deny from 82.137.196.241
Deny from 94.178.141.7
Deny from 24.1.120.203
Deny from 95.133.75.169
Deny from 109.160.131.222
Deny from 201.20.18.165
Deny from 60.217.232.44
Deny from 66.232.120.2
Deny from 68.169.86.222
Deny from 189.105.57.4
Deny from 60.217.232.68
Deny from 202.82.119.17
Deny from 203.104.29.198
Deny from 201.140.160.58
Deny from 200.195.38.98
Deny from 94.178.23.228
Deny from 61.244.235.34
Deny from 125.39.93.76
Deny from 124.160.27.162
Deny from 210.89.69.125
Deny from 213.30.141.196
Deny from 211.138.124.189
Deny from 212.235.107.106
Deny from 109.130.101.138
Deny from 119.63.198.110
Deny from 221.214.27.253
Deny from 71.200.159.68
Deny from 222.89.92.106
Deny from 94.178.109.119
Deny from 89.28.10.22
Deny from 123.125.156.145
Deny from 93.167.194.250
Deny from 109.62.143.186
Deny from 67.244.114.72
Deny from 218.185.224.15
Deny from 75.101.132.93
Deny from 77.61.246.62
Deny from 24.127.144.60
Deny from 60.251.120.63
Deny from 85.100.120.103
Deny from 222.161.137.205
Deny from 219.139.158.59
Deny from 90.177.223.49
Deny from 46.109.28.176
Deny from 222.88.42.46
Deny from 69.28.231.167
Allow from all