Redirecting Spambots

These methods are for webmasters to actively detect a spambot in action and take preventative steps. They all depend upon being able to detect that a particular session is a spambot, and changing the output to deceive or deflect the bot. Some passive web-based scripts can also avoid spambots.

• Apache Spambot Redirection
• IIS Spambot Redirection
• Other Spambot Redirection
• Testing Spambot Redirection
• Blacklisting Spambot IPs

Related

• Web Spam

Apache Spambot Redirection

• Apache Spambot Redirection Tools
• Apache URL Rewriting

Apache Spambot Redirection Tools

Most of these tools use mod_rewrite - see Apache URL Rewriting

Apache and PHP vs. the Spambots - www.ahref.com/guides/technology/200009/0922piou.html
Techniques to Prevent Address Scraping - www.webtechniques.com/archives/2001/08/champeon/ - mod_rewrite
Using Apache to stop bad robots - evolt.org/article/rating/18/15126/
Robotcop - www.robotcop.org/
A Spambot Trap - www.neilgunton.com/spambot_trap/ - mod_perl
Spam Sucks - www.awtrey.com/files/spamsucks/ - mod_rewrite
How to block spambots - diveintomark.org/archives/2003/02/26/... - mod_rewrite
Block Bad Bots - www.clockwatchers.com/robots_bad.html
Defending Against Email Harvesters - linux.oldcrank.com/tips/antibot/
Blocking the Spambots - fantomaster.com/faantispamtip4.html
.htaccess RewriteEngine - www.aaronlogan.com/downloads/htaccess.php

Apache URL Rewriting

These tools provide the basic means for most Apache spambot redirection.

mod_rewrite - httpd.apache.org/docs/2.1/mod/mod_rewrite.html

IIS Spambot Redirection

• ASP Spambot Tools
• Rewrite for IIS

ASP Spambot Tools

Save Your Site from Spambots - dreamweaverfever.com/experiments/spam/detect.asp - ASP
Crawler Blocking & Filtering - evolvedcode.net/content/code_crawlerfilter/ - ASP
E-Mail Protector - evolvedcode.net/content/code_mailprotect/ - ASP

Rewrite for IIS

Used properly, these might allow an altered version of the Apache Spambot Redirection Tools to function.

ISAPI_Rewrite - www.isapirewrite.com/
IISRewrite - www.qwerksoft.com/products/iisrewrite/

Other Spambot Redirection

RXML Antispam Tricks - house.ofdoom.com/~hungerf3/thoughts/page.spike?main=74 - RXML
The E-Mail Protector Script - www.siteware.ch/webresources/scripts/perl/emp.html - Perl
HarvestStorm - www.dsis.net/products/harveststorm/
How to keep bad robots, spiders and web crawlers away - www.fleiner.com/bots/
Thwarting the Advances of Internet Robots - arpa.org/txt/bugspray.txt - enter user: guest, pass: arpa
Bad Behavior - www.bad-behavior.ioerror.us/ - PHP
Stopping bad robots with honeytraps - www.davidnaylor.co.uk/stopping-bad-robots-with-honeytraps.html - PHP
A Simple PHP based Bad-Bot Trap - seven-3-five.blogspot.com/2006/09/simple-php-based-bad-bot-trap_04.html - PHP

Testing Spambot Redirection

wannaBrowser - www.wannabrowser.com/
refspoof - refspoof.mozdev.org/
User Agent Switcher Extension - chrispederick.com/work/user-agent-switcher/

Blacklisting Spambot IPs

Spambot IPs - www.spywareinfo.com/harvest_project/spambots.txt
Most Recent Harvester List - www.projecthoneypot.org/top_harvesters.php
PHPrbl - phprbl.init1.nl/

Related

• Blacklists