In every war there are hero's...
Written by Daniel   
Saturday, 16 September 2006 11:47
A New Way to Beat Spam?
Dark Reading

SEPTEMBER 15, 2006 | You've tried blacklisting. And whitelisting. And half a dozen content-filtering tools. But every day, you and your users still paw through multiple spam messages, trying to find the stuff that's real email.

There's gotta be a better way, you say. And a couple of researchers at Georgia Tech think they've found it.

At the Association of Computing Machinery's annual Special Interest Group on Data Communication (SIGCOMM) yesterday, a Georgia Tech assistant professor and his doctoral student presented a paper that indicates it may be possible to detect and eradicate spam at the network layer, without using content filters.

In their paper, "Understanding the Network-Level Behavior of Spammers," Prof. Nick Feamster and Anirudh Ramachandran revealed the results of a 17-month study of more than 10 million spam messages sent over the Internet. The primary finding: Spam generally travels a different path on the network than real email.

The study found that most span is sent from a few regions of IP address space, and that spammers are using transient "bots" that send only a few pieces of email over a very short period of time.

"These trends suggest that developing algorithms to identify botnet membership, filtering email messages based on network-level properties (which are less variable than email content), and improving the security of the Internet routing infrastructure may prove to be extremely effective for combating spam," the paper says".... more to be had!

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