full-disclosure - Re: Modifying SSH to Capture Login Credentials from Attackers

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Message-ID: <4AC37550.2090209@zerial.org>
Date: Wed, 30 Sep 2009 11:12:16 -0400
From: "Fernando A. Lagos B." <fernando@...ial.org>
To: "my.hndl" <my.hndl@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: Modifying SSH to Capture Login Credentials
 from Attackers

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my.hndl wrote:
> If you've ever had your SSH server dictionary attacked and wondered what
> usernames / passwords the attackers were trying...
> 
> I've posted detailed instructions on modifying openssh on Ubuntu 9.04 in
> order to log username / password attempts made by bots.  This
> information can then be used to track down the tools / dictionaries
> being used against you, and may even lead to discovery of IRC command &
> control channels used by the botnet herders/masters (the topic of my
> next post).
> 
> Full username / password logs included for your enjoyment:
> http://paulmakowski.wordpress.com/2009/09/28/hacking-sshd-for-a-pass_file/

Exists a "PAM" module exploit/utility to save the typed passwords via
ssh, "normal login", etc.

> 
> Intended for novices interested in honeypots.
> 

- --
Fernando A. Lagos Berardi - Zerial
Desarrollador y Programador Web
Seguridad Informatica
Linux User #382319
Blog: http://blog.zerial.org
Skype: erzerial
Jabber: zerial@...beres.org
GTalk && MSN: fernando@...ial.org

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