[PowerShell] Récupérer les Product Keys via Powershell

Hello,

Pour ceux que cela peut intéresser, voici un petit script qui ajoute une fonction permettant de récupérer les Product Key de machines distantes. Toutes les instructions sont dedans. Vous pouvez l'utiliser directement dans la console PowerShell ou en allant chercher les nom de serveur dans un fichier CSV.

Pour le lancer dans le contexte PowerShell, après avoir importé le script :

Code:

Get-ProductKey -Computername my_computer_name

Code:

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function Get-ProductKey {
    [cmdletbinding()]
    Param (
        [parameter(ValueFromPipeLine=$True,ValueFromPipeLineByPropertyName=$True)]
        [Alias("CN","__Server","IPAddress","Server")]
        [string[]]$Computername = $Env:Computername
    )
    Begin {   
        $map="BCDFGHJKMPQRTVWXY2346789" 
    }
    Process {
        ForEach ($Computer in $Computername) {
            Write-Verbose ("{0}: Checking network availability" -f $Computer)
            If (Test-Connection -ComputerName $Computer -Count 1 -Quiet) {
                Try {
                    Write-Verbose ("{0}: Retrieving WMI OS information" -f $Computer)
                    $OS = Get-WmiObject -ComputerName $Computer Win32_OperatingSystem -ErrorAction Stop                
                } Catch {
                    $OS = New-Object PSObject -Property @{
                        Caption = $_.Exception.Message
                        Version = $_.Exception.Message
                    }
                }
                Try {
                    Write-Verbose ("{0}: Attempting remote registry access" -f $Computer)
                    $remoteReg = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey([Microsoft.Win32.RegistryHive]::LocalMachine,$Computer)
                    If ($OS.OSArchitecture -eq '64-bit') {
                        $value = $remoteReg.OpenSubKey("SOFTWARE\Microsoft\Windows NT\CurrentVersion").GetValue('DigitalProductId4')[0x34..0x42]
                    } Else {                        
                        $value = $remoteReg.OpenSubKey("SOFTWARE\Microsoft\Windows NT\CurrentVersion").GetValue('DigitalProductId')[0x34..0x42]
                    }
                    $ProductKey = ""  
                    Write-Verbose ("{0}: Translating data into product key" -f $Computer)
                    for ($i = 24; $i -ge 0; $i--) { 
                      $r = 0 
                      for ($j = 14; $j -ge 0; $j--) { 
                        $r = ($r * 256) -bxor $value[$j] 
                        $value[$j] = [math]::Floor([double]($r/24)) 
                        $r = $r % 24 
                      } 
                      $ProductKey = $map[$r] + $ProductKey 
                      if (($i % 5) -eq 0 -and $i -ne 0) { 
                        $ProductKey = "-" + $ProductKey 
                      } 
                    }
                } Catch {
                    $ProductKey = $_.Exception.Message
                }        
                $object = New-Object PSObject -Property @{
                    Computername = $Computer
                    ProductKey = $ProductKey
                    OSDescription = $os.Caption
                    OSVersion = $os.Version
                } 
                $object.pstypenames.insert(0,'ProductKey.Info')
                $object
            } Else {
                $object = New-Object PSObject -Property @{
                    Computername = $Computer
                    ProductKey = 'Unreachable'
                    OSDescription = 'Unreachable'
                    OSVersion = 'Unreachable'
                }  
                $object.pstypenames.insert(0,'ProductKey.Info')
                $object                           
            }
        }
    }
} 

<#
Now we are going to use the new function to retrieve the product keys of several machines
The name of the CSV file containing the machines names should be 'serverlist.csv'. This file should be stored in the current directory.
The column of this file should be 'computername'. 
The output is generated as a text file, also in the current directory.
#>
$list = import-csv .\serverlist.csv

ForEach ($server in $list) {
Get-ProductKey -Computername $server.computername | fl >> .\output.txt
}

write-host Processing complete. Output generated. Opening file
notepad .\output.txt
read-host Hit ENTER to exit...