Spammers find new ways to bypass filters

Spammers have always had to resort to new solutions to bypass spam filters. It was thanks to the ingenuity of spammers that a new kind of spam appeared - graphic. It was a great move (for them, of course), because spam filters then understood only the text. However, when spam filters appeared, blocking graphic spam, spammers reduced this technology to nothing.

As already mentioned, graphic spam appeared last year. It quickly became popular as text spam filters let it pass, and made up almost a third of all spam traffic.

But spam filters soon improved and began to analyze the image files attached to messages. The Secure Computing lab found that spammers use photo hosting sites and a small HTML code to display the image in a message.

Dmitri Alperovich, the chief manager of Secure Computing research, says that the images located on photo hosting sites differ from those nested for the better in that they are not checked by filters, but using HTML tags shows it in the same way as the embedded graphic file.
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However, there is one good moment for this technology: since now spammers do not send images themselves, but use photo hosting sites, they cannot get malicious files by mail (for example, ImageShack analyzes the image, searches for and removes hidden code in it). Although it somehow comforts me a little ...