Getting Logged on User
A small script which can be used to find what user is logged into a station. Can be handy if you are looking for a station that does not have any user logged into it.
If filters out known SIDs and I have left the MS article in the comments if you need to add more to it.
Using it is as easy as loading the cmdlet:
Get-LoggedOnUser -ComputerName Some-Computer
It will accept values from the pipeline too, so if you are working on a domain:
Get-ADComputer SomeComputer | Get-LoggedOnUser
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| function Get-LoggedOnUser { | |
| <# | |
| .Synopsis | |
| Gets the logged in user of the station | |
| .DESCRIPTION | |
| Uses WMI to get the user who is logged in while stripping out the common SIDS | |
| .EXAMPLE | |
| Get-LoggedOnUser | |
| .EXAMPLE | |
| Get-LoggedOnUser -ComputerName Some-Computer | |
| .INPUTS | |
| will accept values from the pipeline: "Computer", "__SERVER", "IPAddress" | |
| .OUTPUTS | |
| Will output type: System.Management.ManagementObject#root\cimv2\Win32_UserProfile | |
| .NOTES | |
| General notes | |
| #> | |
| [CmdletBinding()] | |
| Param ( | |
| # Specify the name of one or more computers | |
| [Parameter( | |
| Position = 0, | |
| Mandatory = $false, | |
| ValueFromPipeline = $true, | |
| ValueFromPipelineByPropertyName = $true, | |
| ParameterSetName = 'Computer' | |
| )] | |
| [Alias("Computer", "__SERVER", "IPAddress")] | |
| $ComputerName = $env:COMPUTERNAME | |
| ) | |
| #can filter out common sids that appear | |
| # https://support.microsoft.com/en-gb/help/243330/well-known-security-identifiers-in-windows-operating-systems | |
| $commonSIDS = @( | |
| ".DEFAULT", | |
| "S-1-5-18", | |
| "S-1-5-19", | |
| "S-1-5-20", | |
| "_Classes" | |
| ) | |
| $wmiLoadedUser = Get-WmiObject win32_userprofile -ComputerName $computerName | where{$_.loaded -eq $true -and $_.SID -notmatch ($commonSIDS -join '|') } | |
| $wmiLoadedUser | |
| } |