RE: Encrypted sessions

[Michael Aylor <maylor () swbanktx com>]

That would be neat, if there was a way of telling snort about the
existance of a private RSA key that it had read access to, so it could
reverse engineer the public key exchange it was watching...am I
oversimplifying?  My understanding was that, if you had the private key
(and presumably the password used to encrypt it), then you'd be able to
decode any traffic using that key.  Am I incorrect?


Mike

-----Original Message-----
From: Erek Adams [mailto:erek () theadamsfamily net]
Sent: Tuesday, November 27, 2001 3:31 PM
To: Chr. v. Stuckrad
Cc: snort-users () lists sourceforge net
Subject: Re: [Snort-users] Encrypted sessions


On Tue, 27 Nov 2001, Chr. v. Stuckrad wrote:

> *grin* there is another problem with 'encryption':
> I've seen a thing like an IRC-Bot used as DDOS Command-Center
> and communicating via an encrypted stream to the hacked host...
>
> No chance to see anything, except if the key is already known.

Right!  But I was (pardon the pun) 'keying off' on the fact it was 'our
mailservers/webservers'.  I made the assumption that they had they keys.
:)

> But how?  If for example you would want to look for specific bad
traffic
> (we had that with ssh1) and you want to find logins via ssh, you only
> get the fact, that there IS a connection, no contents (else ssh would
be
> useless anyway).

Right again!  If the 3l33t hax0r uses a l33t algorithm like, oh, ROTT13,
then
you've got a bit of a chance.   :)  But if it's something akin to
ssh--Good
luck.

-----
Erek Adams
Nifty-Type-Guy
TheAdamsFamily.Net


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