Re: defences from incognito

[HD Moore <hdm () metasploit com>]

On 5/9/2010 3:20 PM, Robin Wood wrote:
> Hi
> I asked this on the PaulDotCom list and the only suggestion I got was
> from Mubix suggesting using group policy to time out cached
> credentials. Any other suggestions would be helpful....
>
> Has anyone got any good references I can pass on to clients I've owned
> through incognito? Beyond suggesting be careful who you log in as and
> using least privileges what else can I suggest?

There isn't really a defense if you have system access to a machine with
a logged in administrative user. I have heard that enabling kerberos can
help in terms of session lifetime, but since you can just sniff the
user's clear-text keystrokes when they authenticate, its not a real
solution.

A fun trick us injecting into winlogon, start the keystroke monitor,
then locking the user's screen. When they authenticate to get back to
their desktop, you have the clear-text password.

-HD

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