Re: penetration test in a Windows 2000/NT network

[Michael Thumann <mlthumann () ids-guide de>]

Cain & Abel 2.5 is able to sniff and crack NTLMv2 hashes.
www.oxid.it

cheers
Michael

At 14:29 14.05.03 +0100, heron heron wrote:
> Hi,
>
> I will accomplish a penetration test in a Windows 2000/NT network shortly. A
> goal is to get  confidential information (files) and if possible get admin
> rights. I will be with my computers in the LAN. A computer for normal uses 
> (thus
> no Admin access) is likewise put to me at the disposal.
>
> Is there a possibility on a Windows 2000 computers (physical access is 
> possible)
> to attain admin rights without to overwrite the admin account. Background: I
> would like try to crack the password of the local admin (e.g. by means of 
> pwdump
> and John). There ist the possibility that all admin passwords (also for the
> domain) is alike.
>
> Is there a tool, with which I can crack NTLMv2 hashes. Background: I will 
> try to
> sniff hashes during the registration at the DC (e.g. CAIN, ettercap) and to
> crack them. Unfortunately me is still no tool known in order to crack NTLMv2
> hashes.
>
> A further possibility at to come to information, would be the employment of a
> SMB Proxy. By ARP Spoofing it would be nevertheless theoretically possible to
> intercept the LM/NTLM(v1/v2) authentication . Then the attacker could itself
> instead announce at the server. Does it give there already such a Tool?
>
> Who has suggestions? For Tools please give always in the Web URL (if 
> possible of
> the programmer).
>
> Greeting
> Heron
>
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----------------------------------------------------------------------------------------------------
Michael Thumann        mlthumann@ids-guide       www.ids-guide.de
Public Key available at http://www.ids-guide.de/MichaelThumann.asc
----------------------------------------------------------------------------------------------------
The only secure computer is one that's unplugged, locked in a safe,
and buried 20 feet under the ground in a secret location...and i'm not
even too sure about that one
                                                                   --Dennis 
Huges, FBI. 


---------------------------------------------------------------------------
*** Wireless LAN Policies for Security & Management - NEW White Paper ***
Just like wired networks, wireless LANs require network security policies 
that are enforced to protect WLANs from known vulnerabilities and threats. 
Learn to design, implement and enforce WLAN security policies to lockdown enterprise WLANs.

To get your FREE white paper visit us at:    
http://www.securityfocus.com/AirDefense-pen-test
----------------------------------------------------------------------------