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Re: Logging IP Address of Failed login attempts
From: Joey Peloquin <joeyp () cotse net>
Date: Thu, 13 Jul 2006 07:01:32 -0500

M4ch3T3 Hax wrote:
Hi All,

A quick question regarding windows networks. I have a  Domain Admin
User account which keeps getting locked out, it is not used by any
programs etc. and i'm pretty sure I don't have any virus / spyware on
my system.

Is there any way to log the IP address of all machines that fail a
login attempt?

If I can narrow my search down to a single IP address that keeps
trying to login with this account, that would be ideal. Does anybody
know of a way to do this, possibly using group policy?

Any help would be great.

Cheers.

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You could filter the DCs security log for the account's failures (very much
depends on the size of your org), run NTLast from Foundstone against the
DC's security log or all machines in your domain (using a shell script and a
FOR loop, but again, no clue about the size of your org), or throw a WMI
scipt together to parse the security logs of all or a number of machines,
DCs, etc.

There are problems with these suggestions, such as if the "attacker" ever
unplugs the target machine, but it's a place to start.

It'd help, too, if you shared more details about the environment.

Good luck.

-jp



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This List Sponsored by: Cenzic

Concerned about Web Application Security? 
Why not go with the #1 solution - Cenzic, the only one to win the Analyst's 
Choice Award from eWeek. As attacks through web applications continue to rise, 
you need to proactively protect your applications from hackers. Cenzic has the 
most comprehensive solutions to meet your application security penetration 
testing and vulnerability management needs. You have an option to go with a 
managed service (Cenzic ClickToSecure) or an enterprise software 
(Cenzic Hailstorm). Download FREE whitepaper on how a managed service can 
help you: http://www.cenzic.com/news_events/wpappsec.php 
And, now for a limited time we can do a FREE audit for you to confirm your 
results from other product. Contact us at request () cenzic com for details.
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