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RE: Windows Log
From: "Nick Duda" <nduda () VistaPrint com>
Date: Fri, 20 Jan 2006 14:49:45 -0500


Does anyone have an example of a script like you mention...I'ev been playing with everything, apparently not.

Thanks for all the replies so far,
Nick

-----Original Message-----
From: Ramsdell, Scott [mailto:sramsdell () stinsonmoheck com]
Sent: Friday, January 20, 2006 1:28 PM
To: Nick Duda; security-basics () securityfocus com
Subject: RE: Windows Log

Nick,

EventIDs and LogonTypes generated for different types of successful logons:

1.  Interactive console logons (at the keyboard, or through KVM) generate EventID 528 and LogonType 2.  This is 
recorded on the local workstation or server.

2.  Interactive logons resuming from a password protected screen saver generate EventID 528 and LogonType 7.  This is 
also recorded on the local box.

3.  Logging off generates EventID 538 with LogonType 2 or 7 depending on if the user logged out of Windows (2) or the 
screen saver came on (7).

4.  Users logging into the domain generate EventID 540 LogonType 3 on the domain controller.  This indicates a 
successful logon across the network to a shared resource such as the SYSVOL and netlogon shares to process GPOs and 
read scripts.

5.  Users logging out of the domain disconnect from SYSVOL and netlogon, so this generates EventID 538 LogonType 3 on 
the DC.

LogonType 2 = interactive (keyboard or KVM)
LogonType 3 = across the network
LogonType 7 = screen saver

VBScript can query machines for those events using WMI.  For what you want, you will have to query each of your DCs for 
EventID 540 LogonType 3 events.

Alternatively, in an AD environment you can monitor logon and logoff through GPOs.  Simply write a script that dumps 
username, workstation and time to a centrally located repository.  Then assign that script in a GPO under "User 
Configuration\Windows Settings\Scripts\Logon" and "User Configuration\Windows Settings\Scripts\Logoff". 

As "List Spam" points out below, you don't want to limit the logging your DC collects, you might need it for something 
else.  Simply query for what you need, or dump what you need.

Regards,
Scott


-----Original Message-----
From: Nick Duda [mailto:nduda () VistaPrint com]
Sent: Thursday, January 19, 2006 8:56 AM
To: security-basics () securityfocus com
Subject: RE: Windows Log


To continue this topic, I'm faced with the same thing....

The problem is that with all these event id's 672, 673, 540...etc there is still no positive way to say , when a user 
logged on (via cntrl,alt delete) and logged off, as in shutdown or log off.


My goal, is to use syslog or some other form of monitoring to keep records of each employees logon/logoff of a PC 
physically on the network. I've been knee deep into all these event id's and nothing is accurate.


Please help.

-----Original Message-----
From: List Spam [mailto:listspam () gmail com]

Sent: Tuesday, January 17, 2006 10:08 AM
To: security-basics () securityfocus com
Subject: Re: Windows Log

There are many types of logins that can be performed in an an AD
environment.  Among these are full desktop logins by a user (aka
interactive login), non-interactive network logins (e.g. mount a
share), computer accounts authenticating to the domain, etc.

I would venture a guess that you don't want to disallow the ability to
log other security events, but want to easily find login events of
some type (see above) without having to wade through the full set of
logged data.  If this is the case, you could simply filter the logs to
show the event id that is specific to the action you are looking to
see.

You could use the built-in "Event Viewer" application for it,
EventCombMT (Google it), one of the resource kit log dumping
utilitities, VBScripts, or just about anything else to export this
info.  Some VBScript examples are below:

http://www.microsoft.com/technet/scriptcenter/scripts/logs/eventlog/defaultmspx

I dare say that if you're trying to audit security on a box, you don't
want to hack up the data collection facility, but want to simply get
better use from that data.

My two cetns.

On 1/16/06, Rod <rod.rio () gmail com> wrote:
Hi all,

I have a Win2k Server, who is my Domain Controller, and I'd like it to
log only the LOGON/LOGOFF events. I know that there are a whole class
of logon/logoff events, but I´d like to log only when a user logon
into a machine in the domain.

Hope I was clear... thx


--
Rodrigo M. T. Fernandez
Departamento de Ciência da Computação UFRJ
Grupo de Respostas a Incidentes de Segurança - GRIS UFRJ
www.dcc.ufrj.br | www.gris.dcc.ufrj.br

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