Ever found yourself needing to decrypt a secure string knowing that there are a couple of static methods you need to use but can never remember what they are? After a quick Google, you’ll probably stumble upon something similar to this:
$BSTR = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($SecurePassword)
$UnsecurePassword = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($BSTR)
Whilst this works fine, it’s way easier to remember (Tab complete is your friend) that a PSCredential object has the
ability to show the password by using GetNetworkCredential().Password. So, you can construct a PSCredential object
with arbitrary username (I used a whitespace) and access the secure string like so:
$UnsecurePassword = [PSCredential]::New(' ', $SecurePassword).GetNetworkCredential().Password