IDS: RE: SIM Tools, and endpoint security.

["Bill Royds" <whitehats () royds net>]

Windows File Protection does NOT verify the integrity of the file, only that the
File Version field is correct. If it does not match, it then retrieves the file
from the DLLCache directory which is easily corrupted by a Trojan.
  Spyware/Trojans/Rootkits for windows often actually use this to prevent
removal. If one removes the spyware code, Windows File Protection conveniently
restores it.
  Windows File Protection is useful against fumble fingers, but not against
determined attackers.

-----Original Message-----
From: THolman () toplayer com [mailto:THolman () toplayer com] 
Sent: Friday, May 20, 2005 5:55 PM
To: simonis () myself com; THolman () toplayer com; focus-ids () securityfocus com
Subject: RE: SIM Tools, and endpoint security.

Hi Drew,

I'm referring to Windows File Protection -
http://support.microsoft.com/kb/310747/EN-US/

This is configurable via Group Policy and offers 100% protection of system
files on the intended target.

..add to this Windows XP SP2, then you've got a pretty rock solid
workstation base that is not open to infection (as the firewall doesn't
allow anything in), and maintains integrity of system files (so malicious
code can't take over the system).

There's quite a lot more to Microsoft's OS security that often gets
overlooked, and many sysadmins are steered away from this with clever
marcoms and end up buying 3rd party applications to fill the gap.

My point is, be 100% sure that what you've got cannot do what you want,
before you go and buy something else!  ;)

Regards,

Tim 


-----Original Message-----
From: Drew Simonis [mailto:simonis () myself com] 
Sent: 20 May 2005 14:53
To: THolman () toplayer com; focus-ids () securityfocus com
Subject: RE: SIM Tools, and endpoint security.

> Don't discount the power of Microsoft Group Policy at a desktop level -
they
> offer state of the art file integrity checking systems that are far more
> cost-effective and comprehensive than the 3rd party add-ons that
proliferate
> the market.
Huh? I've not see how Group Policy does "state of the art file integrity 
checking".  Can you clarify?

-Ds



--------------------------------------------------------------------------
Test Your IDS

Is your IDS deployed correctly?
Find out quickly and easily by testing it with real-world attacks from 
CORE IMPACT.
Go to http://www.securityfocus.com/sponsor/CoreSecurity_focus-ids_040708 
to learn more.
--------------------------------------------------------------------------