Creating a PS Credential from a Clear Text Password in Powershell

Before I begin here, let me say, this is very unsecure.  There are very few times when doing this would be a good idea from a security standpoint.  That being said, it is definately possible.

First things first.  We need to build a secure string for the password:

PS C:\> $password = "mypassword" | ConvertTo-SecureString -asPlainText -Force

We have to use the asPlainText paramater to tell the convertto cmdlet that our source is a plain text string and not an encrypted string which is what it normally expects.  Then, we have to use -force so Powershell knows we really want to do this unsecure technique.

Next we'll put the username into a variable and create the PSCredential object:

PS C:\> $username = "nwtraders\administrator"
PS C:\> $credential = New-Object System.Management.Automation.PSCredential($username,$password)

This creates the new PSCrednetial object that is now ready to be used by any cmdlet that needs a PSCredential like Get-WMIObject:

PS C:\> Get-WMIObject win32_logicaldisk -ComputerName Server1 -Credential $credential

I am not reccomending you do this as it is unsecure, but it works if you really need to.  Remember this applies to anything that is expecting a PSCredential object.  Don't quote me right now, but I am pretty sure that the remote PSSession in Powershell V2 uses a PSCredential (among other cmdlets).



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Comments (7)
  1. CRCerr0r says:

    nice, perfect and cleanly explained!

  2. Randy C. says:

    Thanks much Gary, 5 years ex post facto, for giving a noob a basic understanding of what a credential is about.

  3. john.s2011 says:

    Hi Gray.
    very useful. really thanks

  4. Venky says:

    Thanks a lot 🙂

  5. Raul says:

    Obrigado! Muito bom!

  6. Dave says:

    Gary – I know you say you’re not recommending this as it’s not secure, so I ask that you put a link to using credentials in a secure manner, so people stumbling across this can be led to a better method.

  7. Darren says:

    It has been up 7 years, I think the damage is done. I found it useful, cheers +1

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