lundi 3 août 2015

PowerShell - Get username, Logon Date, Password Last Set and Creation date of local users

Hi !

Here's a little PowerShell script to retrieve from the registry the username, Logon Date, Password Last Set and Creation date of the local users on a windows computer.

You can find here : https://gallery.technet.microsoft.com/scriptcenter/PowerShell-Get-username-fdcb6990

# Thanks to Boe Prox for his Get-RegistryKeyTimestamp function (https://gallery.technet.microsoft.com/scriptcenter/Get-RegistryKeyLastWriteTim-63f4dd96)
function Get-RegistryKeyTimestamp {
    [OutputType('Microsoft.Registry.Timestamp')]
    [cmdletbinding(
        DefaultParameterSetName = 'ByValue'
    )]
    Param (
        [parameter(ValueFromPipeline=$True, ParameterSetName='ByValue')]
        [Microsoft.Win32.RegistryKey]$RegistryKey,
        [parameter(ParameterSetName='ByPath')]
        [string]$SubKey,
        [parameter(ParameterSetName='ByPath')]
        [Microsoft.Win32.RegistryHive]$RegistryHive,
        [parameter(ParameterSetName='ByPath')]
        [string]$Computername
    )
    Begin {
        #region Create Win32 API Object
        Try {
            [void][advapi32]
        } Catch {
            #region Module Builder
            $Domain = [AppDomain]::CurrentDomain
            $DynAssembly = New-Object System.Reflection.AssemblyName('RegAssembly')
            $AssemblyBuilder = $Domain.DefineDynamicAssembly($DynAssembly, [System.Reflection.Emit.AssemblyBuilderAccess]::Run) # Only run in memory
            $ModuleBuilder = $AssemblyBuilder.DefineDynamicModule('RegistryTimeStampModule', $False)
            #endregion Module Builder

            #region DllImport
            $TypeBuilder = $ModuleBuilder.DefineType('advapi32', 'Public, Class')

            #region RegQueryInfoKey Method
            $PInvokeMethod = $TypeBuilder.DefineMethod(
                'RegQueryInfoKey', #Method Name
                [Reflection.MethodAttributes] 'PrivateScope, Public, Static, HideBySig, PinvokeImpl', #Method Attributes
                [IntPtr], #Method Return Type
                [Type[]] @(
                    [Microsoft.Win32.SafeHandles.SafeRegistryHandle], #Registry Handle
                    [System.Text.StringBuilder], #Class Name
                    [UInt32 ].MakeByRefType(),  #Class Length
                    [UInt32], #Reserved
                    [UInt32 ].MakeByRefType(), #Subkey Count
                    [UInt32 ].MakeByRefType(), #Max Subkey Name Length
                    [UInt32 ].MakeByRefType(), #Max Class Length
                    [UInt32 ].MakeByRefType(), #Value Count
                    [UInt32 ].MakeByRefType(), #Max Value Name Length
                    [UInt32 ].MakeByRefType(), #Max Value Name Length
                    [UInt32 ].MakeByRefType(), #Security Descriptor Size          
                    [long].MakeByRefType() #LastWriteTime
                ) #Method Parameters
            )

            $DllImportConstructor = [Runtime.InteropServices.DllImportAttribute].GetConstructor(@([String]))
            $FieldArray = [Reflection.FieldInfo[]] @(      
                [Runtime.InteropServices.DllImportAttribute].GetField('EntryPoint'),
                [Runtime.InteropServices.DllImportAttribute].GetField('SetLastError')
            )

            $FieldValueArray = [Object[]] @(
                'RegQueryInfoKey', #CASE SENSITIVE!!
                $True
            )

            $SetLastErrorCustomAttribute = New-Object Reflection.Emit.CustomAttributeBuilder(
                $DllImportConstructor,
                @('advapi32.dll'),
                $FieldArray,
                $FieldValueArray
            )

            $PInvokeMethod.SetCustomAttribute($SetLastErrorCustomAttribute)
            #endregion RegQueryInfoKey Method

            [void]$TypeBuilder.CreateType()
            #endregion DllImport
        }
        #endregion Create Win32 API object
    }
    Process {
        #region Constant Variables
        $ClassLength = 255
        [long]$TimeStamp = $null
        #endregion Constant Variables

        #region Registry Key Data
        If ($PSCmdlet.ParameterSetName -eq 'ByPath') {
            #Get registry key data
            $RegistryKey = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey($RegistryHive, $Computername).OpenSubKey($SubKey)
            If ($RegistryKey -isnot [Microsoft.Win32.RegistryKey]) {
                Throw "Cannot open or locate $SubKey on $Computername"
            }
        }

        $ClassName = New-Object System.Text.StringBuilder $RegistryKey.Name
        $RegistryHandle = $RegistryKey.Handle
        #endregion Registry Key Data

        #region Retrieve timestamp
        $Return = [advapi32]::RegQueryInfoKey(
            $RegistryHandle,
            $ClassName,
            [ref]$ClassLength,
            $Null,
            [ref]$Null,
            [ref]$Null,
            [ref]$Null,
            [ref]$Null,
            [ref]$Null,
            [ref]$Null,
            [ref]$Null,
            [ref]$TimeStamp
        )
        Switch ($Return) {
            0 {
               #Convert High/Low date to DateTime Object
                $LastWriteTime = [datetime]::FromFileTime($TimeStamp)

                #Return object
                $Object = [pscustomobject]@{
                    FullName = $RegistryKey.Name
                    Name = $RegistryKey.Name -replace '.*\\(.*)','$1'
                    LastWriteTime = $LastWriteTime
                }
                $Object.pstypenames.insert(0,'Microsoft.Registry.Timestamp')
                $Object
            }
            122 {
                Throw "ERROR_INSUFFICIENT_BUFFER (0x7a)"
            }
            Default {
                Throw "Error ($return) occurred"
            }
        }
        #endregion Retrieve timestamp
    }
}

function Get-UserName([byte[]]$V) {
    if (-not $V) {return $null};
    $offset = [BitConverter]::ToInt32($V[0x0c..0x0f],0) + 0xCC;
    $len = [BitConverter]::ToInt32($V[0x10..0x13],0);
    return [Text.Encoding]::Unicode.GetString($V, $offset, $len);
}

function Get-LastLogonDate([byte[]]$F) {
    $i=0
    $lastLogon = ""   
    $hexLastLogon = @()   
    while($i -lt $F.Length) {
        if($i -eq 8 -or ($i -gt 7 -and $i -lt 16)) {
            $lastLogon = $lastLogon + $F[$i]
            $hexLastLogon += '{0:X2}' -f $F[$i]       
        }
        $i++
    }

    $i=$hexLastLogon.Length - 1
    $lastLogon = ""
    while($i -ge 0) {
        $lastLogon = $lastLogon + $hexLastLogon[$i]
        $i--
    }
    $lastLogon = "0x$lastLogon"
    return $lastLogon
}

function Get-PasswordLastSet([byte[]]$F) {
    $i=0   
    $passwordLastSet = ""
    $hexPasswordLastSet = @()
    while($i -lt $F.Length) {
        if($i -eq 24 -or ($i -gt 23 -and $i -lt 32)) {
            $passwordLastSet = $passwordLastSet + $F[$i]
            $hexPasswordLastSet += '{0:X2}' -f $F[$i] 
        }
        $i++
    }

  $i=$hexPasswordLastSet.Length - 1
    $passwordLastSet = ""
    while($i -ge 0) {
        $passwordLastSet = $passwordLastSet + $hexPasswordLastSet[$i]
        $i--
    }
    $passwordLastSet = "0x$passwordLastSet"
    return $passwordLastSet
}

function Get-LastWriteTime($key) {
    $RegistryKey = Get-Item $key
    $extendExport = $RegistryKey | Get-RegistryKeyTimestamp   
    return $extendExport
}
function Get-UserKeys {
    ls HKLM:\SAM\SAM\Domains\Account\Users |
        where {$_.PSChildName -match "^[0-9A-Fa-f]{8}$"} |
            Add-Member AliasProperty KeyName PSChildName -PassThru |           
            Add-Member ScriptProperty UserName {Get-UserName($this.GetValue("V"))} -PassThru |
            Add-Member ScriptProperty LastLogonDate {Get-LastLogonDate($this.GetValue("F"))} -PassThru |
            Add-Member ScriptProperty PasswordLastSet {Get-PasswordLastSet($this.GetValue("F"))} -PassThru
}

$localUsers = Get-UserKeys| %{
    $logonDate = $([datetime]::FromFileTime($_.LastLogonDate).ToLocalTime())
    $passwordLastSet = $([datetime]::FromFileTime($_.PasswordLastSet).ToLocalTime())
    $subkey = $_.UserName
    $RegistryKey = Get-Item "HKLM:\SAM\SAM\Domains\Account\Users\Names\$subkey"
    $extendExport = $RegistryKey | Get-RegistryKeyTimestamp
    $lastWriteTime = $($extendExport.LastWriteTime.ToLocalTime())
    "{0}::{1}::{2}::{3}" -f ($_.UserName,$logonDate,$passwordLastSet,$lastWriteTime)}
"{0}::{1}::{2}::{3}" -f ("UserName","LogonDate","PasswordLastSet","LastWriteTime")
$localUsers



Result : 

UserName::LogonDate::PasswordLastSet::LastWriteTime
Administrator::7/26/2012 3:22:17 AM::7/26/2012 3:27:03 AM::8/1/2015 10:10:34 AM
Guest::12/31/1600 7:00:00 PM::12/31/1600 7:00:00 PM::8/1/2015 10:10:34 AM
Test1::12/31/1600 7:00:00 PM::10/20/2013 3:53:30 AM::8/2/2015 4:36:30 PM
Test2::8/19/2013 1:30:05 AM::7/24/2013 3:47:52 PM::8/1/2015 10:10:34 AM
Test3::6/11/2015 7:16:26 PM::3/18/2015 5:12:51 PM::8/1/2015 10:10:34 AM
TestRegistry::8/1/2015 3:42:15 PM::8/1/2015 4:53:47 PM::8/1/2015 12:39:58 PM 

Enjoy !

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