full-disclosure - Re: Finding Domain Controllers for use with WinScanX using DCLookup.exe (source included)

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Date: Tue, 9 Feb 2010 18:10:42 +0000
From: "Thor (Hammer of God)" <Thor@...merofgod.com>
To: "full-disclosure@...ts.grok.org.uk" <full-disclosure@...ts.grok.org.uk>
Subject: Re: Finding Domain Controllers for use with
 WinScanX	using DCLookup.exe (source included)

FYI, TSEnum is free and always has been on the HoG site.  I wrote it specifically to enumerate the roles of all servers in the domain, including things like SQL server, Terminal services, etc.  it also works over a null session.

Well, it did back in the day, I've not looked at how it holds up against 2008.

t

> -----Original Message-----
> From: full-disclosure-bounces@...ts.grok.org.uk [mailto:full-
> disclosure-bounces@...ts.grok.org.uk] On Behalf Of Reed Arvin
> Sent: Tuesday, February 09, 2010 10:08 AM
> To: full-disclosure@...ts.grok.org.uk
> Subject: [Full-disclosure] Finding Domain Controllers for use with
> WinScanX using DCLookup.exe (source included)
> 
> WinScanX Pro is only $10.00 for the month of February (normally
> $250.00)
> 
> WinScanX Basic (always free - only scans one host per run)
> http://www.windowsaudit.com/
> 
> Article tool: DCLookup.exe (source included)
> http://windowsaudit.com/downloads/DCLookup.zip
> 
> Original article link:
> http://windowsaudit.com/winscanx/finding-domain-controllers-for-use-
> with-winscanx/
> 
> ==============================
> 
> When performing a security assessment it's important to have a plan of
> attack. All machines do not have the same level of criticality. For
> example, a missing patch on a Windows workstation will not be
> perceived as being as serious a flaw as a missing patch on a Windows
> domain controller. For a Windows assessment, one routine that I found
> useful was to target the following hosts in the following order:
> 
> - Windows domain controllers
> - Windows servers
> - Windows workstations
> 
> Locating Windows domain controllers can be a bit of a hassle
> sometimes, especially if you have no knowledge of the network you are
> assessing. If that is the case for you, the following may provide some
> help.
> 
> DCLookup - Provides a list of domain controllers that are available to
> authenticate the current host
> 
> Download at: http://windowsaudit.com/downloads/DCLookup.zip (source
> included)
> 
> Usage:
> 
> DCLookup.exe <hostname | ip address>
> 
> DCLookup.exe 127.0.0.1
> DCLookup.exe MyMachine
> 
> Example output:
> 
> C:\>DCLookup.exe 127.0.0.1
> 
> +++++++++++++++++++++++++++++++++++++++++++++++++++
> +++++         DC INFO VIA DsGetDcName         +++++
> +++++++++++++++++++++++++++++++++++++++++++++++++++
> 
> Domain Controller Name:    \\site1dc06.company.corp
> Domain Controller Address: \\192.168.11.65
> Domain Name:               company.corp
> DNS Forest Name:           company.corp
> 
> +++++++++++++++++++++++++++++++++++++++++++++++++++
> +++++  DC INFO VIA DsGetDomainControllerInfo  +++++
> +++++++++++++++++++++++++++++++++++++++++++++++++++
> 
> NetBios Name:  site1DC01
> DNS Host Name: site1dc01.company.corp
> 
> NetBios Name:  site1DC02
> DNS Host Name: site1dc02.company.corp
> 
> NetBios Name:  site2DC01
> DNS Host Name: site2dc01.company.corp
> 
> NetBios Name:  site3DC01
> DNS Host Name: site3dc01.company.corp
> 
> NetBios Name:  site4DC01
> DNS Host Name: site4DC01.company.corp
> 
> NetBios Name:  site5DC01
> DNS Host Name: site5DC01.company.corp
> 
> NetBios Name:  site6DC04
> DNS Host Name: site6DC04.company.corp
> 
> NetBios Name:  site1DC05
> DNS Host Name: site1dc05.company.corp
> 
> NetBios Name:  site1DC06
> DNS Host Name: site1dc06.company.corp
> 
> NetBios Name:  site1DC04
> DNS Host Name: site1dc04.company.corp
> 
> +++++++++++++++++++++++++++++++++++++++++++++++++++
> +++++   DC INFO VIA DsEnumerateDomainTrusts   +++++
> +++++++++++++++++++++++++++++++++++++++++++++++++++
> 
> NetBios Domain Name: TRUSTEDDOM
> DNS Domain Name:     trusteddom.corp
> 
> What to do next:
> 
> Once you have a list of domain controllers, the next step would be to
> start running various checks against them to assess their security
> stature. The following is a short assessment flow for a domain
> controller using WinScanX:
> 
> 1. Using WinScanX, attempt to retrieve the account lockout threshold
> using the Get Account Policy Information feature against a domain
> controller.
> 
> 2. If the account lockout threshold is not set or if it is 5 attempts
> or higher, attempt to retrieve the user information using the Get User
> Information or Get User Information via RA Bypass feature of WinScanX
> and run a quick password check using the Guess Windows Passwords
> feature.
> 
> ***NOTE***
> Make sure to only use the Guess Windows Passwords feature on one
> domain controller ONLY. Using this feature on multiple domain
> controllers in the same domain may cause accounts to lock out.
> 
> _______________________________________________
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_______________________________________________
Full-Disclosure - We believe in it.
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