Comment Spam

Yet another spam retaliation tactic using mod_rewrite

Observed: a large (>80%) amount of bogus trackbacks are being POSTed with a user agent that is not a standard user agent to generate trackbacks. Resolved: capture the trackbacks and redirect them to the site apparently paying for the spamming in the first place using mod_rewrite under Apache. <files "mt-tb.cgi"> RewriteEngine On RewriteCond %{REQUEST_METHOD} ^POST$ RewriteCond %{HTTP_USER_AGENT} ^USER-AGENT-STRING-1.*$ [NC,OR] RewriteCond %{HTTP_USER_AGENT} ^USER-AGENT-STRING-2.*$ [NC] RewriteRule .*...

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Updated: Junk Keywords based on Google AdSense

Earlier this year, I came up with a novel way of generating a keyword blacklist for the comment/trackback filter on this site: use the (allegedly) highest paying Google AdWords to generate a blacklist. As I don't write about mesothelioma, insurance fraud, asbestos, or phentermine often, I felt it was pretty safe to wholesale block any comments or posts with those words (and others from the...

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