mirror of
https://github.com/okieselbach/AutopilotMonitor.git
synced 2026-10-24 12:42:38 +00:00
Oliver Kieselbach
304 lines
13 KiB
PowerShell
304 lines
13 KiB
PowerShell
<#
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.SYNOPSIS
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DEV variant of the bootstrap script to deploy and start the Autopilot Monitor agent.
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.DESCRIPTION
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Funktionally identical to Install-AutopilotMonitor.ps1 with two differences:
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1. Default $AgentDownloadUrl points to AutopilotMonitor-Agent-dev.zip
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2. Integrity check is read from version-dev.json (NOT version.json)
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This enables parallel lab testing of unreleased agent builds via a dedicated
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Intune Platform Script assignment, without touching any production artefacts.
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See Install-AutopilotMonitor.ps1 for the full behaviour (guards, SHA-256
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integrity verification, scheduled task registration via --install, etc.).
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.PARAMETER AgentDownloadUrl
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URL to download the DEV agent binaries from (ZIP file). Defaults to
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AutopilotMonitor-Agent-dev.zip in the same blob container as production.
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.NOTES
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- ASCII-only. PowerShell 5.1 / IME AgentExecutor reads scripts without BOM
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as ANSI and corrupts multi-byte chars.
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- Guards are intentionally identical to Prod bootstrapper so lab behaviour
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matches production behaviour on fresh images.
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.CHANGELOG
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2026-05-04 v2.0-pre-dev Verify-block message aligned with prod variant: WMI-detached
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runtime launch (Program.InstallMode.cs PR1) and XML-hardened
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BootTrigger fallback (PR2). Comment trimmed.
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2026-04-20 v2.0-pre-dev Forked from Install-AutopilotMonitor-Dev.ps1 v1.1-dev for V2-Agent.
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Default URL -> AutopilotMonitor-Agent-V2-dev.zip,
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integrity file -> version-v2-dev.json,
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agent exe -> AutopilotMonitor.Agent.exe (V2 release line, identified via version-v2-dev.json + AssemblyVersion 2.0.x).
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Plan: plans/REFACTOR_AGENT_V2.md section 4 M2.
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2026-04-14 v1.1-dev Initial DEV variant forked from Install-AutopilotMonitor.ps1 v1.1.
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Default URL -> AutopilotMonitor-Agent-dev.zip, integrity file -> version-dev.json.
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#>
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[CmdletBinding()]
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param(
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[Parameter(Mandatory = $false)]
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[string]$AgentDownloadUrl = "https://autopilotmonitor.blob.core.windows.net/agent/AutopilotMonitor-Agent-V2-dev.zip",
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[Parameter(Mandatory = $false)]
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[int]$MaxBootstrapWindowHours = 12
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)
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# Script version (bump on meaningful changes; see .CHANGELOG above)
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$ScriptVersion = "2.0-pre-dev"
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# Configuration - Everything in ProgramData for easy cleanup
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$AgentBasePath = "$env:ProgramData\AutopilotMonitor"
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$AgentBinPath = "$AgentBasePath\Agent"
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$AgentLogPath = "$AgentBasePath\Logs"
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$LogFile = "$AgentLogPath\bootstrap_agent.log"
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# Ensure directories exist
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New-Item -Path $AgentBasePath -ItemType Directory -Force -ErrorAction SilentlyContinue | Out-Null
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New-Item -Path $AgentBinPath -ItemType Directory -Force -ErrorAction SilentlyContinue | Out-Null
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New-Item -Path $AgentLogPath -ItemType Directory -Force -ErrorAction SilentlyContinue | Out-Null
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function Write-Log {
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param([string]$Message)
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$timestamp = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
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$logMessage = "[$timestamp] $Message"
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Write-Output $logMessage
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Add-Content -Path $LogFile -Value $logMessage -ErrorAction SilentlyContinue
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}
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function Get-FileMd5Base64 {
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param(
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[Parameter(Mandatory = $true)]
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[string]$Path
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)
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$md5 = [System.Security.Cryptography.MD5]::Create()
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try {
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$stream = [System.IO.File]::OpenRead($Path)
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try {
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$hashBytes = $md5.ComputeHash($stream)
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}
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finally {
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$stream.Dispose()
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}
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return [Convert]::ToBase64String($hashBytes)
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}
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finally {
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$md5.Dispose()
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}
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}
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try {
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Write-Log "===== Autopilot Monitor Bootstrap Started (DEV) ====="
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Write-Log "Bootstrap script version: v$ScriptVersion"
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Write-Log "Agent download URL: $AgentDownloadUrl"
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# -- Pre-flight: Multi-signal guard (identical to production bootstrapper) --
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# Guard 1: Ghost re-installs (registry marker from previous deployment)
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# Guard 2: Productive devices (real user profile exists -- WMI + filesystem)
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# Guard 3: Productive devices (a real user has logged on before)
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# Guard 4: Bootstrap window expired (device uptime > 12h without agent)
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# Guard 5: Agent binary already present from a previous run
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# Guard 1
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$deployed = (Get-ItemProperty -Path 'HKLM:\SOFTWARE\AutopilotMonitor' -Name 'Deployed' -ErrorAction SilentlyContinue).Deployed
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if ($deployed) {
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Write-Log "SKIP: Agent was previously deployed at $deployed."
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exit 0
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}
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# Guard 2
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$excludePattern = '^(defaultuser\d*|Public|Default( User)?|All Users)$'
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$profileNames = @(
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try {
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Get-CimInstance Win32_UserProfile -ErrorAction Stop |
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Where-Object { -not $_.Special -and $_.LocalPath -like 'C:\Users\*' } |
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ForEach-Object { Split-Path $_.LocalPath -Leaf }
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} catch { Write-Log "INFO: WMI profile query failed, continuing with filesystem check." }
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(Get-ChildItem 'C:\Users' -Directory -ErrorAction SilentlyContinue).Name
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) | Where-Object { $_ -and $_ -notmatch $excludePattern } |
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Select-Object -Unique
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if ($profileNames) {
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$names = ($profileNames | Select-Object -First 3) -join ', '
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Write-Log "SKIP: Real user profile(s) found ($names). Device appears productive."
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exit 0
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}
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# Guard 3
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$lastLoggedOnUser = (Get-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI' -Name 'LastLoggedOnUser' -EA SilentlyContinue).LastLoggedOnUser
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if ($lastLoggedOnUser -and $lastLoggedOnUser -notmatch 'defaultuser\d*') {
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Write-Log "SKIP: LastLoggedOnUser found ($lastLoggedOnUser). Device appears productive."
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exit 0
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}
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# Guard 4
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$lastBoot = (Get-CimInstance Win32_OperatingSystem).LastBootUpTime
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$uptimeHours = ((Get-Date) - $lastBoot).TotalHours
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Write-Log "Device uptime: $([int]$uptimeHours)h (last boot: $lastBoot)"
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if ($uptimeHours -gt $MaxBootstrapWindowHours) {
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Write-Log "SKIP: Device uptime is $([int]$uptimeHours)h. OOBE state is older than accepted bootstrap window of ${MaxBootstrapWindowHours}h."
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exit 0
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}
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# Guard 5
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if (Test-Path $AgentBinPath) {
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$existingAgent = Get-ChildItem -Path $AgentBinPath -Filter "AutopilotMonitor.Agent.exe" -ErrorAction SilentlyContinue
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if ($existingAgent) {
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Write-Log "SKIP: Agent already installed at $($existingAgent.FullName)."
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exit 0
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}
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}
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Write-Log "Pre-flight checks passed -- no prior deployment, no real user profiles, no logged-on user, within bootstrap window"
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# Download and extract agent binaries
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$agentExePath = Join-Path $AgentBinPath "AutopilotMonitor.Agent.exe"
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if (Test-Path $agentExePath) {
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Write-Log "Agent already installed at $agentExePath"
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}
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else {
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Write-Log "Downloading DEV agent from $AgentDownloadUrl..."
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try {
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# DEV: Integrity-File ist version-dev.json (im selben Container wie das -dev ZIP)
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$versionJsonUrl = $AgentDownloadUrl -replace '[^/]+$', 'version-v2-dev.json'
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$expectedSha256 = $null
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try {
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Write-Log "Fetching version-dev.json from $versionJsonUrl for integrity verification..."
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$versionJsonResponse = Invoke-RestMethod -Uri $versionJsonUrl -UseBasicParsing -TimeoutSec 5 -ErrorAction Stop
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if ($versionJsonResponse.sha256) {
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$expectedSha256 = $versionJsonResponse.sha256.ToLowerInvariant()
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Write-Log "SHA-256 hash from version-dev.json: $expectedSha256 (version: $($versionJsonResponse.version))"
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} else {
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Write-Log "version-dev.json has no sha256 field - falling back to legacy MD5 check"
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}
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}
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catch {
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Write-Log "WARNING: Could not fetch version-dev.json - falling back to legacy MD5 check: $($_.Exception.Message)"
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}
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$zipPath = Join-Path $env:TEMP "AutopilotMonitor-Agent-V2-dev.zip"
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$maxDownloadAttempts = 3
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$downloadAttempt = 0
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$downloadResponse = $null
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do {
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$downloadAttempt++
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try {
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Write-Log "Download attempt ${downloadAttempt}/${maxDownloadAttempts}"
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$downloadResponse = Invoke-WebRequest `
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-Uri $AgentDownloadUrl `
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-OutFile $zipPath `
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-UseBasicParsing `
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-TimeoutSec 30 `
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-ErrorAction Stop `
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-PassThru
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Write-Log "Downloaded agent to $zipPath"
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break
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}
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catch {
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if ($downloadAttempt -ge $maxDownloadAttempts) {
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throw
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}
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$retryDelaysInSeconds = @(2, 4, 8)
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$retryDelaySeconds = $retryDelaysInSeconds[$downloadAttempt - 1]
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Write-Log "Download failed (attempt $downloadAttempt): $($_.Exception.Message). Retrying in ${retryDelaySeconds}s..."
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Start-Sleep -Seconds $retryDelaySeconds
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}
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} while ($downloadAttempt -lt $maxDownloadAttempts)
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if ($expectedSha256) {
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$actualSha256 = (Get-FileHash $zipPath -Algorithm SHA256).Hash.ToLowerInvariant()
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Write-Log "Validating SHA-256 hash against version-dev.json"
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if ($actualSha256 -ne $expectedSha256) {
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throw "SHA-256 integrity check FAILED. Expected='$expectedSha256', Actual='$actualSha256'. Download may be tampered or corrupted."
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}
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Write-Log "SHA-256 integrity check passed"
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}
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else {
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$expectedMd5Header = $downloadResponse.Headers["Content-MD5"]
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$expectedMd5 = if ($expectedMd5Header -is [System.Array]) { "$($expectedMd5Header[0])".Trim() } else { "$expectedMd5Header".Trim() }
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if ($expectedMd5 -notmatch '\S') {
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Write-Log "WARNING: No SHA-256 and no Content-MD5 header - skipping integrity validation"
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}
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else {
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$actualMd5 = Get-FileMd5Base64 -Path $zipPath
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Write-Log "Validating Content-MD5 header against downloaded ZIP"
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if ($actualMd5 -ne $expectedMd5) {
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throw "MD5 integrity check failed. Expected (Content-MD5)='$expectedMd5', Actual='$actualMd5'"
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}
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Write-Log "MD5 integrity check passed"
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}
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}
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Expand-Archive -Path $zipPath -DestinationPath $AgentBinPath -Force
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Write-Log "Extracted agent to $AgentBinPath"
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Remove-Item $zipPath -Force -ErrorAction SilentlyContinue
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Write-Log "Cleaned up temporary files"
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if (-not (Test-Path $agentExePath)) {
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throw "Agent executable not found after extraction at $agentExePath"
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}
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Write-Log "DEV agent installation completed successfully"
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}
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catch {
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Write-Log "ERROR downloading/extracting agent: $($_.Exception.Message)"
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throw
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}
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}
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Write-Log "Calling agent install mode (--install)..."
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& $agentExePath --install
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$installExitCode = $LASTEXITCODE
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if ($installExitCode -ne 0) {
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throw "Agent install failed with exit code $installExitCode"
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}
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Write-Log "Agent install mode completed successfully"
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# Belt-and-suspenders runtime verify. --install spawns the runtime via WMI
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# (PR1, 2026-05-04), bypassing the schtasks /Run queue defer. This still
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# catches AV/EDR or AppLocker/WDAC kills after spawn. On miss, the BootTrigger
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# task (PR2 hardened) takes over at next boot.
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$runtimeProcessName = 'AutopilotMonitor.Agent'
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$verifyTimeoutSec = 10
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$verifyDeadline = (Get-Date).AddSeconds($verifyTimeoutSec)
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$runtimeProc = $null
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while ((Get-Date) -lt $verifyDeadline) {
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$runtimeProc = Get-Process -Name $runtimeProcessName -ErrorAction SilentlyContinue | Select-Object -First 1
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if ($null -ne $runtimeProc) { break }
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Start-Sleep -Milliseconds 500
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}
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if ($null -ne $runtimeProc) {
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$startedUtc = 'unavailable'
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try { $startedUtc = $runtimeProc.StartTime.ToUniversalTime().ToString('o') } catch { }
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Write-Log ("Runtime process verified: name={0}.exe pid={1} startedUtc={2}" -f $runtimeProcessName, $runtimeProc.Id, $startedUtc)
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} else {
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Write-Log ("WARNING: Runtime process verification FAILED. Agent --install reported success but no '{0}.exe' process appeared within {1}s. Likely silent block (AV/EDR, AppLocker/WDAC) of the WMI-detached launch. Agent should still come up at next boot via the BootTrigger task. Check Event Viewer > Microsoft > Windows > TaskScheduler/Operational and AV/EDR logs for '{0}.exe'." -f $runtimeProcessName, $verifyTimeoutSec)
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}
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Write-Log "===== Bootstrap Completed Successfully (DEV) ====="
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exit 0
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}
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catch {
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Write-Log "===== Bootstrap FAILED (DEV) ====="
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Write-Log "ERROR: $($_.Exception.Message)"
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Write-Log "Stack trace: $($_.ScriptStackTrace)"
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Write-Log "Please check log file: $LogFile"
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$errMsg = "AutopilotMonitor bootstrap (DEV) failed: $($_.Exception.Message)"
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if ($errMsg.Length -gt 2048) { $errMsg = $errMsg.Substring(0, 1045) + '...' }
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[Console]::Error.WriteLine($errMsg)
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exit 1
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}
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