From: GUsh-T (rootz@fibertel.com.ar)
Date: Sun Aug 29 2004 - 11:57:36 EDT
I saw this too on a linux/router/FW using iptables TARPIT module.
http://www.securityfocus.com/infocus/1723
But that succed if you are scannig in a HALF way (SYN flag).
If there is some kind of Honeypot then a daemon (in this case "service")
it must to make a response to a full tcp connection. (i.e.: banner response
commands interaction, etc.)
GUs.-
> I am not sure what is doing this, but I assume it is a software (or some
> kind of) firewall/hids, can anybody point me in the right direction?
>
> I am pen-testing a Windows webserver, and a port scan reveals ALL tcp
> ports open. hping also confirms that a SA is returned for any S packets
> sent to any port I try. I can connect via netcat any of the ports, and
> send data, but nothing is returned. In order to verify services, I am
> required to connect and check for a banner or send appropriate protocol
> commands to elicit a response.
>
> Has anyone seen this, or have any idea of what this is?
>
> Thanks.
>
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