QR code threat links

[yanfei]

Hi,In recent years, there have been more and more spam/phishing emails that send pictures/documents with QR code links. Do we have a protection plan for this type of email? Image content can already be identified through spamassassin 4.0. Can you add the function of identifying and converting QR codes into threat connections and achieving final analysis?

 

[jjoelc]

I also recently started wondering the same thing. No luck finding any info on this forum, but did manage to find the following SpamAssassin plugin to decode QR codes and filter based on the results.

https://github.com/mxguardian/Mail-SpamAssassin-Plugin-QRCode

I've never added a new plugin to SpamAssassin, so I'm off to break things! If anyone as a basic/generic walkthrough for installing new plugins to SpamAssassin in PMG, I'd love to see them!