Re: NNTP and Yahoo IM conflict

[mikeiscool <michaelslists () gmail com>]

On 8/10/06, NTR <ntr () intoto com> wrote:
> 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.

I guess this would be a start:

ftp://ftp.rfc-editor.org/in-notes/rfc977.txt


> Thanks and Regards,
> NTR

-- mic

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