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We have a Trac instance here and are getting the following spam text (I replaced dots and dashes in the URLs by </> etc. so this post does not help the spammers). As you can see, the text makes sense (although it is vastly out of context on our Trac instancE). The Askimet API does not identify this text as spam.

Furthermore, the client had a valid session, so he set his Email (programmatically?) through the web interface and answered the CAPTCHA correctly.

Is there anything that I could to to protect myself from this kind of spam?

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migrated from serverfault.com Dec 8 '11 at 0:36

This question came from our site for professional system and network administrators.

1 Answer 1

up vote 7 down vote accepted

Some companies will employ real life people to fill in captchas and forms etc to do this spamming.

The short answer that you need to use heuristics in your back-end to capture the spam after it's been submitted. High number of URL's, words like medical, viagra, get a bigger c***, long sentences, etc etc.

Further proof of this: Virtual sweatshops defeat anti-spam tests

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