To Beat Spam, Turn Its Own Weapons Against It
Researchers from the International Computer Science Institute and the University of California, San Diego have developed a method for blocking the most common type of spam. The researchers employed a trick that spammers use to defeat email filters. Each spam message is generated from a template that specifies the message content and a slight variation used to bypass the filter.
The researchers analyzed the messages to reveal the template that created them, and since the template describes all the emails a bot will send, possessing it might provide a method of blocking all spam from that bot. After testing, the team was able to block spam from a specific bot with 100 percent accuracy.
In addition, the new system did not produce a single false positive in more than a million messages, says team member Andreas Pitsillidis. This is an interesting approach which really differs by using the bots themselves as the oracles for producing the filters.
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