Here's a list of the IP addresses I have blocked after attempted attacks on my server.
Updated 28 May 2005
2005
38.118.42.35 # 20050425 - flytrap
60.194.29.252 # 20050305 - buffer overrun attack (default.ida)
61.31.133.103 # 20050515 - attempted mail relay
61.31.136.18 # 20050516 - attempted mail relay
61.31.0.0/16 # 20050521 - Taiwan Fixed Network - 61.31.0.0 - 61.31.255.255
61.99.5.63 # 20050224 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
61.100.108.69 # 20050528 - automated account attack (patrick only)
61.104.78.133 # 20050513 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
61.120.141.18 # 20050504 - simple automated account attack (test guest admin user)
61.128.235.114 # 20050316 - buffer overrun attack (default.ida)
61.129.49.27 # 20050415 - simple automated account attack (test guest admin user)
61.252.29.118 # 20050331 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
61.231.69.241 # 20050515 - attempted mail relay
63.148.99.239 # 20050516 - flytrap
64.36.122.110 # 20050412 - awstats.pl (awstats buffer overflow vulnerabilities)
64.180.101.53 # 20050409 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
66.17.15.0/24 # 20050516 - flytrap "Schmozilla/v9.14 Platinum"
66.36.243.107 # 20050417 - phpBB attacker (/forum, /phpBB, etc)
67.52.241.195 # 20050514 - flytrap
67.67.12.73 # 20050415 - automated account attack
67.18.8.138 # 20050516 - automated account attack (with reverse mapping)
67.97.232.98 # 20050410 - automated account attack
69.44.157.105 # 20050517 - automated account attack
69.50.193.104 # 20050527 - flytrap (multiple user agent/browser identities)
69.137.99.201 # 20050314 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
70.20.17.97 # 20050504 - simple automated account attack (test guest admin user)
80.73.68.27 # 20050326 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
80.95.70.171 # 20050516 - automated account attack
81.174.142.72 # 20050308 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
82.226.135.11 # 20050225 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
84.204.20.170 # 20050430 - simple automated account attack (test guest admin user)
85.186.200.3 # 20050426 - automated account attack
131.246.137.55 # 20050503 - awstats.pl (awstats buffer overflow vulnerabilities)
140.116.0.0/16 # 20050516 - single unknown SCP connection (Taiwan Academic Network)
147.102.42.64 # 20050507 - automated account attack
148.223.86.226 # 20050515 - multiple unknown SCP connection - 20050515
150.101.211.134 # 20050517 - automated account attack (Internode Customer)
172.142.137.236 # 20050317 - buffer overrun attack (default.ida)
193.54.50.100 # 20050329 - formmail.pl (Web-to-Email CGI script vulnerability)
193.205.161.208 # 20050503 - simple automated account attack (test guest admin user)
194.78.167.0/24 # 20050516 - single unknown SCP connection
194.94.121.126 # 20050506 - automated account attack
195.246.156.52 # 20050410 - automated account attack (short)
196.25.69.154 # 20050424 - nsiislog.dll (Windows 2000 server/IIS 5.0 exploit)
198.234.202.130 # 20050327 - formmail.pl (Web-to-Email CGI script vulnerability)
200.54.64.28 # 20050411 - automated account attack
200.161.72.207 # 20050503 - automated account attack
200.207.123.232 # 20050512 - automated account attack
202.55.229.226 # 20050423 - automated account attack (with reverse mapping)
202.57.65.138 # 20050429 - w32.nimda virus ("GET /scripts/..%255c%255c../winnt/system32/cmd.exe?/c+dir")
202.67.155.83 # 20050428 - multiple automated account attacks
202.69.170.177 # 20050513 - automated account attack
202.73.169.170 # 20050509 - automated account attack
202.108.42.56 # 20050426 - Windows hacker? - POST - request without hostname
202.153.41.139 # 20050515 - automated account attack - 20050515
202.176.103.222 # 20050517 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
203.122.0.0/18 # FIRST FIBRE BROADBAND NETWORK IN NEW DELHI, INDIA
206.67.56.201 # 20050516 - simple automated account attack (test guest admin user)
208.6.91.7 # 20050201 - formmail.pl (Web-to-Email CGI script vulnerability)
208.62.7.133 # 20050326 - formmail.pl (Web-to-Email CGI script vulnerability)
209.35.187.105 # 20050508 - awstats.pl (awstats buffer overflow vulnerabilities)
209.151.78.1 # 20050429 - phpBB attacker (/forum, /phpBB, etc)
209.216.150.86 # 20050507 - simple automated account attack (test guest admin user)
210.68.8.169 # 20050515 - automated account attack
210.90.75.130 # 20050504 - automated account attack
210.97.39.61 # 20050425 - automated account attack
210.178.215.221 # 20050501 - simple automated account attack (test guest admin user)
211.40.96.162 # 20050329 - formmail.pl (Web-to-Email CGI script vulnerability)
211.100.13.108 # 20050505 - automated account attack
211.108.59.147 # 20050505 - automated account attack
211.144.146.0/24 # 20050426 - Indy Library - Chinese Spam Bot (caught by flytrap)
211.157.36.0/24 # 20050302 - Indy Library - Chinese Spam Bot
211.174.60.203 # 20050517 - automated account attack
211.184.37.2 # 20050327 - formmail.pl (Web-to-Email CGI script vulnerability)
211.184.65.140 # 20050520 - automated account attack
211.185.42.253 # 20050327 - formmail.pl (Web-to-Email CGI script vulnerability)
211.194.245.114 # 20050410 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
211.219.205.129 # 20050412 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
211.250.14.124 # 20050422 - simple automated account attack (test guest admin user)
211.250.76.162 # 20051205 - formmail.pl (Web-to-Email CGI script vulnerability)
211.251.73.10 # 20050512 - awstats.pl (awstats buffer overflow vulnerabilities)
212.21.124.90 # 20051205 - formmail.pl (Web-to-Email CGI script vulnerability)
212.83.254.178 # 20050228 - awstats.pl (awstats buffer overflow vulnerabilities)
212.143.152.3 # 20050416 - automated account attack
212.166.192.138 # 20050515 - automated account attack
212.202.141.154 # 20051205 - formmail.pl (Web-to-Email CGI script vulnerability)
213.168.225.132 # 20050522 - automated account attack
213.199.192.35 # 20050421 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
213.248.55.24 # 20050427 - automated account attack (patrick only)
216.13.140.114 # 20050425 - awstats.pl (awstats buffer overflow vulnerabilities)
216.150.136.52 # 20050502 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
217.8.138.82 # 20050518 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
217.172.168.109 # 20050203 - awstats.pl (awstats buffer overflow vulnerabilities)
217.195.194.112 # 20050507 - automated account attack (patrick only)
218.64.0.0/11 # 20050221 - China Telecom
218.83.155.79 # 20050221 - proxy attack - GET http://217.106.232.38/default.shtml
218.92.134.236 # 20050220 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
218.101.165.3 # 20050501 - attempted mail relay
218.101.128.0/17 # 20050521 - Hanvit INB Korea - 218.101.128.0 - 218.101.255.255
218.145.226.85 # 20050527 - automated account attack (stopped by ipt_recent)
218.153.147.92 # 20050429 - multiple simple automated account attack (test guest admin user)
218.189.216.181 # 20050320 - awstats.pl (awstats buffer overflow vulnerabilities)
218.195.96.20 # 20050319 - buffer overrun attack (default.ida)
218.208.82.241 # 20050311 - buffer overrun attack (default.ida)
219.80.0.0/15 # 20050521 - Taiwan Fixed Network - 219.80.0.0 - 219.81.255.255
219.81.239.87 # 20050521 - attempted mail relay
219.122.9.163 # 20050417 - multiple unknown SCP connections
219.241.160.4 # 20050307 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
219.252.182.135 # 20050429 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
220.135.202.80 # 20050227 - unknown ~ms18a.hinet.net:25
220.229.40.130 # 20050506 - automated account attack (with reverse mapping)
221.9.67.76 # 20050329 - buffer overrun attack (default.ida)
221.148.158.82 # 20050303 - nsiislog.dll (Windows 2000 server/IIS 5.0 exploit)
221.193.132.8 # 20050419 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
221.194.245.114 # 20050410 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
221.237.182.0/24 # 20050424 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability) IP range
221.245.105.37 # 20050514 - awstats.pl (awstats buffer overflow vulnerabilities)
222.35.15.154 # 20050317 - fp30reg.dll (FrontPage extensions buffer overflow vulnerability)
222.101.92.0/24 # 20050520 - smtphunter - KOREA TELECOM
222.96.0.0/12 # KOREA TELECOM - 222.96.0.0 - 222.122.255.255