PaulDotCom mailing list archives

detecting PDCs


From: carlos_perez at darkoperator.com (Carlos Perez)
Date: Thu, 25 Mar 2010 22:42:35 -0400

I could not resist

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meterpreter > run check_ad
[*] Hostname: awin2k301
[*] Domain: acmeprodinc.com
[*] SRV Records:
[*]     for _ldap._tcp.acmeprodinc.com   awin2k301.acmeprodinc.com   10.10.10.3
[*]     for _gc._tcp.acmeprodinc.com   awin2k301.acmeprodinc.com   10.10.10.3
[*]     for _kerberos._tcp.acmeprodinc.com   awin2k301.acmeprodinc.com   10.10.10.3
[*]     for _kerberos._udp.acmeprodinc.com   awin2k301.acmeprodinc.com   10.10.10.3
[*] Domain Controller: \\AWIN2K301
[*] This server appears to be a Domain Controller
[*] Root Domain: DC=acmeprodinc,DC=com
[*] Machine DN: CN=NTDS 
Settings,CN=AWIN2K301,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=acmeprodinc,DC=com
[*] Database File: C:\WINDOWS\NTDS\ntds.dit
[*] Global Catalog: True
meterpreter >

Let me know if you like it and any bugs or improvements.

Cheers,
Carlos 

On Mar 25, 2010, at 8:12 PM, Butturini, Russell wrote:

These solutuons are useful, but you're assuming a machine joined to the domain, running in the context of an 
authenticated user session, with knowledge of the internal domain name.

----- Original Message -----
From: pauldotcom-bounces at mail.pauldotcom.com <pauldotcom-bounces at mail.pauldotcom.com>
To: PaulDotCom Security Weekly Mailing List <pauldotcom at mail.pauldotcom.com>
Sent: Thu Mar 25 16:36:13 2010
Subject: Re: [Pauldotcom] detecting PDCs

Indeed.
Similar to ethe cho %logonserver% method is:

Systeminfo | findstr /I /C:"logon server"
But a nice way is to get it from dns:
Nslookup -type=srv _ldap._tcp.pdc._msdcs.<domainname>
Will give you the same answer as logonserver, to see all DC's change
pdc to just dc. I got 8 DCs doing this at work all of which I know are
dcs
-Josh

On Mar 25, 2010, at 5:07 PM, k41zen <k41zen at live.co.uk> wrote:

depends on how auth'd you are to the domain I guess, but dsquery is
very useful too

http://www.computerperformance.co.uk/Logon/DSquery.htm

http://tactech.net/2009/09/28/how-to-search-for-a-domain-controller/

http://technet.microsoft.com/en-us/library/cc732885%28WS.10%29.aspx


On 25 Mar 2010, at 10:54, Robin Wood wrote:

Hi
I'm wondering what techniques people are using to detect domain
controllers when they get on networks. I've asked a few people and
the
standard answer seems to be to look for the DNS server as the PDC is
usually also acting as the DNS server. Has anyone else got any better
or alternative techniques they use?

Robin
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