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Windows 7: SYSTEM user account

27 Jun 2014   #1

7 ultimate
SYSTEM user account

when i type for example~

runas /user:system "cmd /k"

outputstream says: "please enter the password for the system."

how can i figure out what the built in user account passwords are? i havent tried bulletview yet but i know that in the services.msc properties where i add the user to run by, if I add a system account it asks for a password which i always leave blank, only then return to find it filled in automatically....

My System SpecsSystem Spec

27 Jun 2014   #2

Windows 7 Ultimate x64

The system account is a special one, in that it does NOT have any password (not even blank, is has NO password at all). Together with "LocalService" and "NetworkService", those 3 are designed specifically to be used with services, not interactively.
You can't simply use runas to impersonate it. Besides, why do you want that?

When configuring services, for System, there is a special option in the dialog (that disables both user/password), and for LocalService and NetworkService, simply leave the passwords blank, and use the browse button to help you locating the account, don't type it by hand preferably.

Ultimately, PsExec can start any program under any of those accounts, if you really want to and know what you're doing.
My System SpecsSystem Spec
27 Jun 2014   #3

Windows 7 Home Premium 32 bit

For all practical purposes the SYSTEM account does not have a password. But for security reasons you cannot login with or use runas with any of the system accounts. This would be a huge security risk if possible.

Can you image the security implications if you could sit down in front of any Windows computer in the world and login as SYSTEM without a password?
That is why it is not permitted.

You can use the AT command to run a scheduled task with the SYSTEM account.
How To Use the AT Command to Schedule Tasks
You can also use Windows Task Scheduler to do this.
In both cases you need to be an admin on the computer in question.
My System SpecsSystem Spec


 SYSTEM user account

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