pccheck.ps1

$ErrorActionPreference = "SilentlyContinue"

function Get-Signature {

    [CmdletBinding()]
     param (
        [string[]]$FilePath
    )

    $Existence = Test-Path -PathType "Leaf" -Path $FilePath
    $Authenticode = (Get-AuthenticodeSignature -FilePath $FilePath -ErrorAction SilentlyContinue).Status
    $Signature = "Invalid Signature (UnknownError)"

    if ($Existence) {
        if ($Authenticode -eq "Valid") {
            $Signature = "Valid Signature"
        }
        elseif ($Authenticode -eq "NotSigned") {
            $Signature = "Invalid Signature (NotSigned)"
        }
        elseif ($Authenticode -eq "HashMismatch") {
            $Signature = "Invalid Signature (HashMismatch)"
        }
        elseif ($Authenticode -eq "NotTrusted") {
            $Signature = "Invalid Signature (NotTrusted)"
        }
        elseif ($Authenticode -eq "UnknownError") {
            $Signature = "Invalid Signature (UnknownError)"
        }
        return $Signature
    } else {
        $Signature = "File Was Not Found"
        return $Signature
    }
}

Clear-Host

Write-Host "";
Write-Host "";
Write-Host -ForegroundColor Blue "SunV - PC Checking Software";
Write-Host "";
Write-Host -ForegroundColor Blue "   Made By Emma for SunV - " -NoNewLine
Write-Host -ForegroundColor Red "discord.gg/sunv";
Write-Host "";

function Test-Admin {;$currentUser = New-Object Security.Principal.WindowsPrincipal $([Security.Principal.WindowsIdentity]::GetCurrent());$currentUser.IsInRole([Security.Principal.WindowsBuiltinRole]::Administrator);}
if (!(Test-Admin)) {
    Write-Warning "Please Run This Script as Admin."
    Start-Sleep 10
    Exit
}

$sw = [Diagnostics.Stopwatch]::StartNew()

if (!(Get-PSDrive -Name HKLM -PSProvider Registry)){
    Try{New-PSDrive -Name HKLM -PSProvider Registry -Root HKEY_LOCAL_MACHINE}
    Catch{Write-Warning "Error Mounting HKEY_Local_Machine"}
}
$bv = ("bam", "bam\State")
Try{$Users = foreach($ii in $bv){Get-ChildItem -Path "HKLM:\SYSTEM\CurrentControlSet\Services\$($ii)\UserSettings\" | Select-Object -ExpandProperty PSChildName}}
Catch{
    Write-Warning "Error Parsing BAM Key. Likely unsupported Windows Version"
    Exit
}
$rpath = @("HKLM:\SYSTEM\CurrentControlSet\Services\bam\","HKLM:\SYSTEM\CurrentControlSet\Services\bam\state\")

$UserTime = (Get-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Control\TimeZoneInformation").TimeZoneKeyName
$UserBias = (Get-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Control\TimeZoneInformation").ActiveTimeBias
$UserDay = (Get-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Control\TimeZoneInformation").DaylightBias

$Bam = Foreach ($Sid in $Users){$u++
            
        foreach($rp in $rpath){
           $BamItems = Get-Item -Path "$($rp)UserSettings\$Sid" -ErrorAction SilentlyContinue | Select-Object -ExpandProperty Property
           Write-Host -ForegroundColor Red "Extracting " -NoNewLine
           Write-Host -ForegroundColor Blue "$($rp)UserSettings\$SID"
           $bi = 0 

            Try{
            $objSID = New-Object System.Security.Principal.SecurityIdentifier($Sid)
            $User = $objSID.Translate( [System.Security.Principal.NTAccount]) 
            $User = $User.Value
            }
            Catch{$User=""}
            $i=0
            ForEach ($Item in $BamItems){$i++
		    $Key = Get-ItemProperty -Path "$($rp)UserSettings\$Sid" -ErrorAction SilentlyContinue| Select-Object -ExpandProperty $Item
	
            If($key.length -eq 24){
                $Hex=[System.BitConverter]::ToString($key[7..0]) -replace "-",""
                $TimeLocal = Get-Date ([DateTime]::FromFileTime([Convert]::ToInt64($Hex, 16))) -Format "yyyy-MM-dd HH:mm:ss"
			    $TimeUTC = Get-Date ([DateTime]::FromFileTimeUtc([Convert]::ToInt64($Hex, 16))) -Format "yyyy-MM-dd HH:mm:ss"
			    $Bias = -([convert]::ToInt32([Convert]::ToString($UserBias,2),2))
			    $Day = -([convert]::ToInt32([Convert]::ToString($UserDay,2),2)) 
			    $Biasd = $Bias/60
			    $Dayd = $Day/60
			    $TImeUser = (Get-Date ([DateTime]::FromFileTimeUtc([Convert]::ToInt64($Hex, 16))).addminutes($Bias) -Format "yyyy-MM-dd HH:mm:ss") 
			    $d = if((((split-path -path $item) | ConvertFrom-String -Delimiter "\\").P3)-match '\d{1}')
			    {((split-path -path $item).Remove(23)).trimstart("\Device\HarddiskVolume")} else {$d = ""}
			    $f = if((((split-path -path $item) | ConvertFrom-String -Delimiter "\\").P3)-match '\d{1}')
			    {Split-path -leaf ($item).TrimStart()} else {$item}	
			    $cp = if((((split-path -path $item) | ConvertFrom-String -Delimiter "\\").P3)-match '\d{1}')
			    {($item).Remove(1,23)} else {$cp = ""}
			    $path = if((((split-path -path $item) | ConvertFrom-String -Delimiter "\\").P3)-match '\d{1}')
			    {Join-Path -Path "C:" -ChildPath $cp} else {$path = ""}			
			    $sig = if((((split-path -path $item) | ConvertFrom-String -Delimiter "\\").P3)-match '\d{1}')
			    {Get-Signature -FilePath $path} else {$sig = ""}				
                [PSCustomObject]@{
                            'Examiner Time' = $TimeLocal
						    'Last Execution Time (UTC)'= $TimeUTC
						    'Last Execution User Time' = $TimeUser
						     Application = 	$f
						     Path =  		$path
                             Signature =          $Sig
						     User =         $User
						     SID =          $Sid
                             Regpath =        $rp
                             }}}}}

$Bam | Out-GridView -PassThru -Title "BAM key entries $($Bam.count)  - User TimeZone: ($UserTime) -> ActiveBias: ( $Bias) - DayLightTime: ($Day)"

$sw.stop()
$t = $sw.Elapsed.TotalMinutes
Write-Host ""
Write-Host "Elapsed Time $t Minutes" -ForegroundColor Yellow