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From: Florian Duerr (florian.duerr
dimensionx.ch)Date: Wed Oct 03 2001 - 12:47:07 CDT
Hi Brett
even for a newbie-hacker it is quite simple to find out which account is the
Administrator-Account.
If you haven't locked down Ports 137-139 (NetBios, Ports might be others,
since it's from my memory) in NT 4 and Port 441 (LDAP, also from my memory)
in Windows 2000 one can connect to the server trough a null-session and see
according to the sid (security ID) which account is the adminsitrator
account.
Neverthless, your idea is good for script-kidies using a word-book to
brute-force your account.
NT and Windows 2000 are using SIDs for they're Administrator accounts, which
are always the same. Even in a Forest with multiple Domains, there is a part
in the GUID which remains the same troughout all distributions.
Lock down the ports I mentioned above! (Browsing will not work anylonger
after you did that!)
cheers
Florian Dürr
MCP / Systems Engineer
Webmaster of http://www.DimensionX.ch
------Originalnachricht-----
>Von: "Brett Harmond" <brett_harmond
yahoo.com>
>An: "FOCUS-MS
SECURITYFOCUS.COM" <FOCUS-MS
SECURITYFOCUS.COM>
>Betreff: External Account Information
>
>Windows NT Server
>
>Since I can't delete the Guest account, I would like
>to use the Guest account as a "honeypot" Administrator
>account. Thus, I have already renamed my
>Administrator account to something else and I will be
>renaming my Guest account to "Administrator".
>Idealistically, I'd like this account to be disabled,
>have a really good password, and essentially no
>rights. If the account is disabled, can anyone trying
>to break into the system detect that the account is
>disabled and thus immediately detect that this is not
>the real Administrator account? In general, without
>logging into a system, what information about user
>accounts can be determined? Are there any tools out
>there to query account information from outside the
>system?
>
>Thanks in advance.
>
>
>
>
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