Thread: Spambots
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  #3  
Old 03-28-2008, 05:56 AM
nwwaew nwwaew is offline
Sympathetic to SC victims
 
Join Date: Mar 2007
Posts: 16
Angry

I'm moderator on a forum that kept getting hit by spambots multiple times a day.

The thing that killed them at our forum was a math problem mod in the sign-up form. We'd ask "What is 2+3?" and no bot would be able to answer it. Combine that with purging all spambot accounts from the database, and we've been spam free since.

The problem is, spammers now have a program called XRumer. It can bypass captchas, and uses a database of open proxies, so it's impossible to block. And it has a nasty trick up it's sleeve: it posts a message asking what XRumer is. People immediately help it out by describing and linking to it, which bumps its ratings up in search engines.
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