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NNTP and Yahoo IM conflict.

Subject: NNTP and Yahoo IM conflict.
Date: Wed, 09 Aug 2006 19:06:41 +0530
Hi All,

I am trying analyze NNTP traffic and i have created a profile for NNTP protocol. It's a kind of NNTP protocol anomaly detection.
I have also observed some time Yahoo Instant Messenger uses NNTP port. Though it is using NNTP port the format is quite different
from NNTP protocol. It is the point where my parsing engine facing problem. Each time whenever yahoo connects on NNTP port
my parsing engine treats it as NNTP protocol anomaly and start generating alerts. I am looking for some advise or solution to solve
this problem. how we should profile NNTP protocol so that it can differentiate yahoo traffic from the genuine NNTP traffic.


Thanks and anticipating early solutions.

Thanks and Regards,
NTR


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