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

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Message-Id: <852BC0DC-DE46-431D-81EF-BBC94BAB478E@gmail.com>
Date: Tue, 29 Sep 2009 13:08:52 -0700
From: Kos <kpo.mail.list@...il.com>
To: Kurth Bemis <kurth.bemis@...il.com>
Cc: "full-disclosure@...ts.grok.org.uk" <full-disclosure@...ts.grok.org.uk>
Subject: Re: Modifying SSH to Capture Login Credentials
	from Attackers

The standard log files won't record passwords, though.

Kos

On Sep 29, 2009, at 12:58 PM, Kurth Bemis <kurth.bemis@...il.com> wrote:

> Aren't all auth failures stored in /var/log/auth (or something  
> similar)?
> and won't most log-watching and reporting packages report failed login
> attempts already?
>
> ~k
> On Tue, 2009-09-29 at 12:25 -0700, 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/
>>
>> Intended for novices interested in honeypots.
>> _______________________________________________
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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/