To beat spam, turn its own weapons against it
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Researchers have now come up with a system that deciphers the templates a botnet is using to create spam. These templates are then used to teach spam filters what to look for. |
| Each message is generated from a template that specifies the message content and how it should be varied. The team reasoned that analysing such messages could reveal the template that created them |
| the team installed a previously captured software bot onto a machine. After analysing 1000 emails generated by this compromised machine - less than 10 minutes’ work for most bots - the researchers were able to reverse-engineer the template |
| The new system did not produce a single false positive when tested against more than a million genuine messages |
| botnets have grown so large that even a 1-minute delay in cracking the template would be “long enough for a very substantial spam campaignRead more at www.newscientist.com |
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