Threat Level: green Handler on Duty: Didier Stevens

SANS ISC: Reports of Strange TCP Port 443 Behavior SANS ISC InfoSec Forums

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Reports of Strange TCP Port 443 Behavior

A reader posted that they are observing strange TCP 443 behavior that looks like a fast flux [1] style pattern. They have a large snort sensor install base. Is anyone else seeing behavior like this? If so.... Got packets?

If you are seeing this behavior and are allowed pleaes report it!



Richard Porter

--- ISC Handler on Duty


173 Posts
ISC Handler
Dec 7th 2012

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