Richi'Blog
Stuff 'n' nonsense about email, spam, travel, and life in the UK.

Friday, September 01, 2006

New Spammer Tactic: Blipverts

For a while now, stock kiting spammers have been encoding their spam in images and trying new ways to make each image slightly different. That makes it harder for hash-based content filters to spot the images.

Here's an interesting new twist. An animated GIF that flashes subliminal images. Presumably each of these is slightly different from message-to-message. On the right, you can see one of these "blipverts" separated out from the GIF (and resized).

(With apologies to Max Headroom)

Labels:

Click here to read more from this site



1 Comments:

Blogger DF said...

I hope no one starts exploding!

Tue Sep 05, 11:30:00 AM UTC  

Post a Comment

For more posts, go to the home page, or see the archive.