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Network Security Snort-Signatures
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[Snort-sigs] simple rule for detect ssl/ssh tunneling session

Subject: [Snort-sigs] simple rule for detect ssl/ssh tunneling session
Date: Tue, 13 Sep 2005 23:41:21 +0200 (CEST)
Hi,

please check and please add this simple/short rule :

bad-traffic.rules:alert tcp any any -> any !139 (msg:"BAD-SSL tcp detect"; flow:stateless; content:"|00 0E|"; depth:4; offset:0;)

this rule, for me, detect openvpn tunneling,

but, of course, many false positive : 139, 443, 3389 ...

improvements are welcome

Regards
Rmkml


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