Spammer's latest trick: PDF spam

Posted by Ian Holsman Tue, 17 Jul 2007 21:34:00 GMT

In the latest escalation of the spam war, the spammers have switched gears and are using PDF files containing their rubbish.

I’m guessing SpamAssassin will have PDF scanning capabilities within a week if it doesn’t already.

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Comments

  1. Avatar niq said about 5 hours later:

    Yeah, it’s great. Just block all PDFs from published addresses. What could be simpler?

  2. Avatar Dave Brondsema said 5 days later:

    It has it now. See http://wiki.apache.org/spamassassin/CustomPlugins?action=diff&;rev2=57&rev1=56 and http://blog.atmail.com/?p=61

  3. Avatar Ben Duncan said 5 days later:

    Checkout a module I wrote called “PDFassassin” which is a plugin for SpamAssassin.

    This can scan emails for PDF attachments, uses the pdftotext utility to extract the text for Spam messages, and also extracts images and uses OCR to pin-point Spam messages embedded in pictures.

    This plugin can really help prevent the wave of PDF spam messages from hitting your mbox

  4. Avatar Ben Duncan said 5 days later:

    The URL is:

    http://blog.atmail.com/?p=61

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