PTah
35e25063e3
Replace \\B26\\NETLOGON with \\dc.contoso.local\\NETLOGON. Remove scripts/ mirror tools and tools/Push-KalinamallOnly.ps1. Sanitize login_monitor.settings.example (placeholders, no secrets). Simplify update-rdp-monitor.ps1 to use origin remote only. Keep dev tooling under tools/ only. Co-authored-by: Cursor <cursoragent@cursor.com>
898 lines
35 KiB
PowerShell
898 lines
35 KiB
PowerShell
<#
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.SYNOPSIS
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Мониторинг Exchange: очереди транспорта, пересылка на внешние адреса (Inbox rules + mailbox forwarding + transport rules).
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.DESCRIPTION
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Запуск на сервере с Exchange Management Shell (локальный snap-in или remote).
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Режимы: -Mode Queues (каждые 10 мин по задаче), -Mode Inbox (ежедневный скан), -Watchdog (проверка heartbeat).
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Установка задач: -InstallTasks
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.NOTES
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Каталог: C:\ProgramData\RDP-login-monitor\
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Опционально: exchange_monitor.settings.ps1 в том же каталоге (секреты, whitelist).
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#>
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[CmdletBinding()]
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param(
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[ValidateSet('Queues', 'Inbox', 'Watchdog')]
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[string]$Mode = 'Queues',
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[switch]$InstallTasks,
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[switch]$Watchdog
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)
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Set-StrictMode -Version Latest
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$ErrorActionPreference = 'Stop'
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# ============================================
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# КОНФИГУРАЦИЯ
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# ============================================
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$ScriptVersion = '1.6.7'
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$script:InstallRoot = [System.IO.Path]::GetFullPath("$env:ProgramData\RDP-login-monitor")
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$script:CanonicalScriptName = 'Exchange-MailSecurity.ps1'
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$LogFile = Join-Path $script:InstallRoot 'Logs\exchange_mail_security.log'
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$WatchdogLogFile = Join-Path $script:InstallRoot 'Logs\exchange_watchdog.log'
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$QueuesHeartbeatFile = Join-Path $script:InstallRoot 'Logs\last_exchange_queues_ok.txt'
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$InboxHeartbeatFile = Join-Path $script:InstallRoot 'Logs\last_exchange_inbox_scan_ok.txt'
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$ForwardingBaselineFile = Join-Path $script:InstallRoot 'Logs\exchange_forwarding_baseline.json'
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$QueueAlertStateFile = Join-Path $script:InstallRoot 'Logs\exchange_queue_alert_state.json'
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# --- Уведомления (как Login_Monitor.ps1; можно вынести в exchange_monitor.settings.ps1) ---
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$NotifyOrder = 'tg'
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$TelegramBotToken = ''
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$TelegramChatID = ''
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$TelegramBotTokenProtectedB64 = ''
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$TelegramChatIDProtectedB64 = ''
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$MailSmtpHost = ''
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$MailSmtpPort = 587
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$MailSmtpUser = ''
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$MailSmtpPassword = ''
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$MailSmtpPasswordProtectedB64 = ''
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$MailFrom = ''
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$MailTo = ''
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$MailSmtpStartTls = $true
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$MailSmtpSsl = $false
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# --- Exchange / сканирование ---
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$ExchangeServerFqdn = '' # пусто = локальный snap-in на этом сервере
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$QueueMessageCountThreshold = 150
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$QueueAlertCooldownSeconds = 900
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$ExternalDomainWhitelist = @() # partner-bank.ru
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$AlertOnlyOnNewForwardingFindings = $true
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$ScanMailboxForwarding = $true
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$ScanInboxRules = $true
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$ScanTransportRules = $true
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# VIP: только перечисленные ящики и/или шаблоны (пилот перед полным сканом).
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$VipMailboxesOnly = $false
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$VipMailboxes = @() # точные PrimarySmtpAddress: user@domain.com
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$VipMailboxPatterns = @() # wildcard: *@example.com, director*, finance*
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$ExcludeMailboxPatterns = @('HealthMailbox*', 'DiscoveryMailbox*', 'SystemMailbox*')
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# Skip Inbox rules scan (corrupt rule store / Get-InboxRule fails). Override in exchange_monitor.settings.ps1
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$SkipInboxScanMailboxes = @(
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'broken-mailbox@example.com'
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)
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$ScanDisabledInboxRulesWithExternalForward = $true # отключённые правила с внешней пересылкой
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$SuppressAlertsOnFirstBaselineRun = $true # первый скан: baseline без всплеска алертов
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$SendInboxScanSummary = $true # краткая сводка после скана
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$InboxScanBatchSize = 50
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$InboxScanBatchDelaySeconds = 3
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$MaxMailboxesPerRun = 0 # 0 = без лимита
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$QueuesHeartbeatStaleSeconds = 1200 # 20 мин
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$InboxHeartbeatStaleSeconds = 93600 # 26 ч
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$NotifyWhenForwardingScanClean = $false # true = ежедневное «внешняя пересылка не найдена»
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$script:ScheduledTaskQueues = 'RDP-Exchange-TransportQueues'
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$script:ScheduledTaskInbox = 'RDP-Exchange-InboxRules'
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$script:ScheduledTaskWatchdog = 'RDP-Exchange-MailSecurity-Watchdog'
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# ============================================
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# ИНИЦИАЛИЗАЦИЯ
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# ============================================
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if (!(Test-Path -LiteralPath $script:InstallRoot)) {
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New-Item -ItemType Directory -Path $script:InstallRoot -Force | Out-Null
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}
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$LogDir = Split-Path $LogFile -Parent
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if (!(Test-Path $LogDir)) { New-Item -ItemType Directory -Path $LogDir -Force | Out-Null }
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$script:Utf8BomEncoding = New-Object System.Text.UTF8Encoding $true
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$SettingsFile = Join-Path $script:InstallRoot 'exchange_monitor.settings.ps1'
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if (Test-Path -LiteralPath $SettingsFile) {
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. $SettingsFile
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}
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function Write-NotifyLog {
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param([string]$Message)
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Write-ExchLog $Message
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}
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function Write-ExchLog {
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param([string]$Message)
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$timestamp = Get-Date -Format 'yyyy-MM-dd HH:mm:ss'
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$logMessage = "$timestamp - $Message" + [Environment]::NewLine
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[System.IO.File]::AppendAllText($LogFile, $logMessage, $script:Utf8BomEncoding)
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Write-Host ($logMessage.TrimEnd("`r`n"))
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}
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function Write-WdLog {
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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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$line = "$timestamp - $Message" + [Environment]::NewLine
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[System.IO.File]::AppendAllText($WatchdogLogFile, $line, $script:Utf8BomEncoding)
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Write-Host ($line.TrimEnd("`r`n"))
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}
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function Test-RunningElevated {
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try {
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$id = [Security.Principal.WindowsIdentity]::GetCurrent()
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if ($null -ne $id.User -and $id.User.Value -eq 'S-1-5-18') { return $true }
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$p = New-Object Security.Principal.WindowsPrincipal($id)
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return $p.IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)
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} catch { return $false }
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}
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function Get-ExchangeMonitorScriptPath {
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$p = $PSCommandPath
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if ([string]::IsNullOrWhiteSpace($p)) { $p = $MyInvocation.MyCommand.Path }
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if ([string]::IsNullOrWhiteSpace($p)) { return (Join-Path $script:InstallRoot $script:CanonicalScriptName) }
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return [System.IO.Path]::GetFullPath($p)
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}
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function Get-ExchangeMonitorPowerShellExe {
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return "$env:SystemRoot\System32\WindowsPowerShell\v1.0\powershell.exe"
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}
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# --- InstallTasks / Watchdog до dot-source уведомлений ---
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function Register-ExchangeMonitorScheduledTasks {
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$psExe = Get-ExchangeMonitorPowerShellExe
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$scriptPath = Get-ExchangeMonitorScriptPath
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$argQueues = "-NoProfile -ExecutionPolicy Bypass -File `"$scriptPath`" -Mode Queues"
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$argInbox = "-NoProfile -ExecutionPolicy Bypass -File `"$scriptPath`" -Mode Inbox"
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$argWd = "-NoProfile -ExecutionPolicy Bypass -File `"$scriptPath`" -Watchdog"
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$schtasksExe = Join-Path $env:SystemRoot 'System32\schtasks.exe'
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$delEa = $ErrorActionPreference
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$ErrorActionPreference = 'SilentlyContinue'
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foreach ($tn in @($script:ScheduledTaskQueues, $script:ScheduledTaskInbox, $script:ScheduledTaskWatchdog)) {
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& $schtasksExe /Delete /TN $tn /F 2>$null | Out-Null
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}
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$ErrorActionPreference = $delEa
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$trQueues = "`"$psExe`" $argQueues"
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$outQ = & $schtasksExe /Create /F /RU SYSTEM /RL HIGHEST /SC MINUTE /MO 10 /TN $script:ScheduledTaskQueues /TR $trQueues 2>&1
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foreach ($line in @($outQ)) { Write-ExchLog "schtasks queues: $line" }
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$trInbox = "`"$psExe`" $argInbox"
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$outI = & $schtasksExe /Create /F /RU SYSTEM /RL HIGHEST /SC DAILY /ST 02:00 /TN $script:ScheduledTaskInbox /TR $trInbox 2>&1
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foreach ($line in @($outI)) { Write-ExchLog "schtasks inbox: $line" }
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$trWd = "`"$psExe`" $argWd"
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$outW = & $schtasksExe /Create /F /RU SYSTEM /RL HIGHEST /SC MINUTE /MO 15 /TN $script:ScheduledTaskWatchdog /TR $trWd 2>&1
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foreach ($line in @($outW)) { Write-ExchLog "schtasks watchdog: $line" }
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$ErrorActionPreference = 'SilentlyContinue'
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& $schtasksExe /Run /TN $script:ScheduledTaskQueues 2>&1 | Out-Null
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& $schtasksExe /Run /TN $script:ScheduledTaskWatchdog 2>&1 | Out-Null
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$ErrorActionPreference = 'Stop'
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Write-ExchLog "InstallTasks: registered $($script:ScheduledTaskQueues), $($script:ScheduledTaskInbox), $($script:ScheduledTaskWatchdog)"
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}
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if ($Watchdog) { $Mode = 'Watchdog' }
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# Уведомления
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$notifyPath = Join-Path $script:InstallRoot 'Notify-Common.ps1'
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if (-not (Test-Path -LiteralPath $notifyPath)) {
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$notifyPath = Join-Path (Split-Path -Parent (Get-ExchangeMonitorScriptPath)) 'Notify-Common.ps1'
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}
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if (-not (Test-Path -LiteralPath $notifyPath)) {
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Write-Host "Notify-Common.ps1 not found near $script:InstallRoot"
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exit 1
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}
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. $notifyPath
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$tgToken = [ref]$TelegramBotToken
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$tgChat = [ref]$TelegramChatID
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$mailPass = [ref]$MailSmtpPassword
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Initialize-NotifyCredentials -TelegramBotTokenProtectedB64 $TelegramBotTokenProtectedB64 `
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-TelegramChatIDProtectedB64 $TelegramChatIDProtectedB64 `
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-TelegramBotToken $tgToken -TelegramChatID $tgChat `
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-MailSmtpPasswordProtectedB64 $MailSmtpPasswordProtectedB64 -MailSmtpPassword $mailPass
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if ($TelegramBotToken -eq '<TELEGRAM_BOT_TOKEN>') { $TelegramBotToken = '' }
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if ($TelegramChatID -eq '<TELEGRAM_CHAT_ID>') { $TelegramChatID = '' }
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function Get-ExchangeInboxScanScopeLabel {
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if (-not $VipMailboxesOnly) {
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if ($MaxMailboxesPerRun -gt 0) { return "all mailboxes (limit $MaxMailboxesPerRun)" }
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return 'all mailboxes'
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}
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$n = @($VipMailboxes | Where-Object { $_ }).Count
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$p = @($VipMailboxPatterns | Where-Object { $_ }).Count
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return "VIP list=$n patterns=$p"
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}
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function Send-ExchangeInstallNotification {
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$scope = Get-ExchangeInboxScanScopeLabel
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$vipNote = if ($VipMailboxesOnly) { "VIP on ($scope)" } else { 'VIP off (full scan)' }
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$firstScan = if ($SuppressAlertsOnFirstBaselineRun) { 'baseline, no alert flood on first run' } else { 'alert on all findings' }
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$msg = "<b>Exchange Mail Security installed</b>`r`n"
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$msg += "Host: $(ConvertTo-TelegramHtml $env:COMPUTERNAME) | v$ScriptVersion`r`n"
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$msg += "Notify: $(ConvertTo-TelegramHtml (Get-NotifyChainHuman))`r`n"
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$msg += "Inbox/forward: $vipNote`r`n"
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$msg += "Queues threshold: $QueueMessageCountThreshold | Inbox 02:00 | Queues every 10 min`r`n"
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$msg += "First scan: $firstScan"
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Send-MonitorNotification -Message $msg -EmailSubject 'Exchange Mail Security: install' | Out-Null
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}
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if ($InstallTasks) {
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if (-not (Test-RunningElevated)) {
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Write-Host 'InstallTasks: run as Administrator.'
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exit 1
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}
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Register-ExchangeMonitorScheduledTasks
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if ((Test-NotifyTelegramConfigured) -or (Test-NotifyEmailConfigured)) {
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Send-ExchangeInstallNotification
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Write-ExchLog 'InstallTasks: install notification sent'
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}
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exit 0
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}
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# ============================================
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# EXCHANGE EMS
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# ============================================
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$script:ExchangeSessionLoaded = $false
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function Import-ExchangeManagementShell {
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if ($script:ExchangeSessionLoaded) { return }
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$snapins = @(Get-PSSnapin -Registered -ErrorAction SilentlyContinue | Where-Object {
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$_.Name -match 'Microsoft\.Exchange\.Management\.PowerShell'
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})
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if ($snapins.Count -gt 0) {
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Add-PSSnapin -Name $snapins[0].Name -ErrorAction Stop
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$script:ExchangeSessionLoaded = $true
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Write-ExchLog "Exchange: snap-in $($snapins[0].Name)"
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return
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}
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$rex = Join-Path ${env:ExchangeInstallPath} 'bin\RemoteExchange.ps1'
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if ([string]::IsNullOrWhiteSpace(${env:ExchangeInstallPath})) {
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$candidates = @(
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'C:\Program Files\Microsoft\Exchange Server\V15\bin\RemoteExchange.ps1',
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'C:\Program Files\Microsoft\Exchange Server\V14\bin\RemoteExchange.ps1'
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)
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foreach ($c in $candidates) {
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if (Test-Path -LiteralPath $c) { $rex = $c; break }
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}
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}
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if (Test-Path -LiteralPath $rex) {
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. $rex
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Import-ExchangeCmdlet -DisableNameVerifying -ErrorAction Stop
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$script:ExchangeSessionLoaded = $true
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Write-ExchLog "Exchange: RemoteExchange $rex"
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return
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}
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if (-not [string]::IsNullOrWhiteSpace($ExchangeServerFqdn)) {
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$uri = "http://$ExchangeServerFqdn/PowerShell/"
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$session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri $uri -Authentication Kerberos -ErrorAction Stop
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Import-PSSession $session -DisableNameChecking -AllowClobber -ErrorAction Stop | Out-Null
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$script:ExchangeSessionLoaded = $true
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Write-ExchLog "Exchange: PSSession $uri"
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return
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}
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throw 'Failed to load Exchange Management Shell (snap-in / RemoteExchange / set $ExchangeServerFqdn).'
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}
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# ============================================
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# ВНЕШНИЕ ДОМЕНЫ
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# ============================================
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function Get-InternalAcceptedDomainNames {
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$null = Import-ExchangeManagementShell
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$names = [System.Collections.Generic.HashSet[string]]::new([StringComparer]::OrdinalIgnoreCase)
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$domains = Get-AcceptedDomain -ErrorAction Stop
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foreach ($d in $domains) {
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if ($d.DomainType -eq 'Authoritative' -or $d.DomainType -eq 'InternalRelay') {
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$null = $names.Add([string]$d.DomainName)
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}
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}
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return $names
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}
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function Get-EmailDomainFromAddress {
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param([string]$Address)
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if ([string]::IsNullOrWhiteSpace($Address)) { return $null }
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$a = $Address.Trim().ToLowerInvariant()
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if ($a -match 'smtp:([^@\s]+@([^@\s;]+))') { return $matches[2] }
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if ($a -match '([a-z0-9._%+-]+@([a-z0-9.-]+\.[a-z]{2,}))') { return $matches[2] }
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return $null
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}
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function Get-AddressesFromExchangeProperty {
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param($PropertyValue)
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$list = [System.Collections.Generic.List[string]]::new()
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if ($null -eq $PropertyValue) { return @() }
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foreach ($item in @($PropertyValue)) {
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$s = [string]$item
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if ([string]::IsNullOrWhiteSpace($s)) { continue }
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if ($s -match 'smtp:([^;\s]+@[^;\s]+)') {
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$list.Add($matches[1].ToLowerInvariant()) | Out-Null
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} elseif ($s -match '([A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,})') {
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$list.Add($matches[1].ToLowerInvariant()) | Out-Null
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}
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}
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return @($list)
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}
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function Test-IsExternalSmtpAddress {
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param(
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[string]$SmtpAddress,
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[System.Collections.Generic.HashSet[string]]$InternalDomains,
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[string[]]$WhitelistDomains
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)
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$domain = Get-EmailDomainFromAddress -Address $SmtpAddress
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if ([string]::IsNullOrWhiteSpace($domain)) { return $false }
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foreach ($w in $WhitelistDomains) {
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if ([string]::IsNullOrWhiteSpace($w)) { continue }
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if ($domain -eq $w.Trim().ToLowerInvariant()) { return $false }
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}
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return -not $InternalDomains.Contains($domain)
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}
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function Test-MailboxExcluded {
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param([string]$PrimarySmtp)
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foreach ($pat in $ExcludeMailboxPatterns) {
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if ([string]::IsNullOrWhiteSpace($pat)) { continue }
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if ($PrimarySmtp -like $pat) { return $true }
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}
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return $false
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}
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function Test-MailboxSkipInboxScan {
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param([string]$PrimarySmtp)
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if ([string]::IsNullOrWhiteSpace($PrimarySmtp)) { return $false }
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$smtp = $PrimarySmtp.Trim().ToLowerInvariant()
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foreach ($skip in $SkipInboxScanMailboxes) {
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if ([string]::IsNullOrWhiteSpace($skip)) { continue }
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if ($smtp -eq $skip.Trim().ToLowerInvariant()) { return $true }
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}
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return $false
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}
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function Test-VipMailboxScopeConfigured {
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if (-not $VipMailboxesOnly) { return $true }
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$hasList = @($VipMailboxes | Where-Object { -not [string]::IsNullOrWhiteSpace($_) }).Count -gt 0
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$hasPat = @($VipMailboxPatterns | Where-Object { -not [string]::IsNullOrWhiteSpace($_) }).Count -gt 0
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return ($hasList -or $hasPat)
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}
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function Test-MailboxInVipScope {
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param([string]$PrimarySmtp)
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if (-not $VipMailboxesOnly) { return $true }
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if (-not (Test-VipMailboxScopeConfigured)) { return $false }
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$smtp = $PrimarySmtp.Trim().ToLowerInvariant()
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foreach ($v in $VipMailboxes) {
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if ([string]::IsNullOrWhiteSpace($v)) { continue }
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if ($smtp -eq $v.Trim().ToLowerInvariant()) { return $true }
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}
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foreach ($pat in $VipMailboxPatterns) {
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if ([string]::IsNullOrWhiteSpace($pat)) { continue }
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if ($smtp -like $pat) { return $true }
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}
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return $false
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}
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# ============================================
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# FINDINGS
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# ============================================
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function New-ForwardingFinding {
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param(
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[string]$FindingType,
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[string]$Mailbox,
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[string]$RuleName,
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[string]$TargetAddress,
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[string]$Severity,
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[hashtable]$Extra = @{}
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)
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$rulePart = if ([string]::IsNullOrWhiteSpace($RuleName)) { '' } else { $RuleName }
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$enabledPart = 'na'
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if ($Extra.ContainsKey('Enabled')) {
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$enabledPart = if ($Extra['Enabled']) { 'on' } else { 'off' }
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}
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$id = '{0}|{1}|{2}|{3}|{4}' -f $FindingType, $Mailbox.ToLowerInvariant(), $rulePart, $TargetAddress.ToLowerInvariant(), $enabledPart
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return [pscustomobject]@{
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Id = $id
|
||
FindingType = $FindingType
|
||
Mailbox = $Mailbox
|
||
RuleName = $RuleName
|
||
TargetAddress = $TargetAddress
|
||
Severity = $Severity
|
||
Extra = $Extra
|
||
}
|
||
}
|
||
|
||
function Format-ForwardingFindingMessage {
|
||
param($Finding)
|
||
|
||
$hType = ConvertTo-TelegramHtml $Finding.FindingType
|
||
$hMb = ConvertTo-TelegramHtml $Finding.Mailbox
|
||
$hRule = ConvertTo-TelegramHtml $Finding.RuleName
|
||
$hTarget = ConvertTo-TelegramHtml $Finding.TargetAddress
|
||
$hSev = ConvertTo-TelegramHtml $Finding.Severity
|
||
$hostName = ConvertTo-TelegramHtml $env:COMPUTERNAME
|
||
|
||
$msg = "<b>Exchange: external forward</b>`r`n"
|
||
$msg += "Host: $hostName`r`n"
|
||
$msg += "Type: $hType`r`n"
|
||
$msg += "Mailbox: $hMb`r`n"
|
||
if (-not [string]::IsNullOrWhiteSpace($Finding.RuleName)) {
|
||
$msg += "Rule: $hRule`r`n"
|
||
}
|
||
$msg += "Target: $hTarget (external)`r`n"
|
||
$msg += "Severity: $hSev`r`n"
|
||
|
||
if ($Finding.Extra.ContainsKey('Enabled')) {
|
||
$msg += "Enabled: $(ConvertTo-TelegramHtml ([string]$Finding.Extra['Enabled']))`r`n"
|
||
}
|
||
if ($Finding.Extra.ContainsKey('DeleteMessage')) {
|
||
$msg += "DeleteMessage: $(ConvertTo-TelegramHtml ([string]$Finding.Extra['DeleteMessage']))`r`n"
|
||
}
|
||
if ($Finding.Extra.ContainsKey('MarkAsRead')) {
|
||
$msg += "MarkAsRead: $(ConvertTo-TelegramHtml ([string]$Finding.Extra['MarkAsRead']))`r`n"
|
||
}
|
||
if ($Finding.Extra.ContainsKey('DeliverToMailboxAndForward')) {
|
||
$msg += "DeliverToMailboxAndForward: $(ConvertTo-TelegramHtml ([string]$Finding.Extra['DeliverToMailboxAndForward']))`r`n"
|
||
}
|
||
if ($Finding.Extra.ContainsKey('Property')) {
|
||
$msg += "Rule property: $(ConvertTo-TelegramHtml ([string]$Finding.Extra['Property']))`r`n"
|
||
}
|
||
|
||
return $msg
|
||
}
|
||
|
||
function Get-ForwardingBaseline {
|
||
if (-not (Test-Path -LiteralPath $ForwardingBaselineFile)) {
|
||
return @{ FindingIds = @(); LastScanUtc = $null }
|
||
}
|
||
try {
|
||
$raw = Get-Content -LiteralPath $ForwardingBaselineFile -Raw -Encoding UTF8 | ConvertFrom-Json
|
||
$ids = @()
|
||
if ($null -ne $raw.FindingIds) { $ids = @($raw.FindingIds) }
|
||
return @{ FindingIds = $ids; LastScanUtc = $raw.LastScanUtc }
|
||
} catch {
|
||
Write-ExchLog "Baseline: read failed ($($_.Exception.Message))"
|
||
return @{ FindingIds = @(); LastScanUtc = $null }
|
||
}
|
||
}
|
||
|
||
function Save-ForwardingBaseline {
|
||
param([string[]]$FindingIds)
|
||
$obj = @{
|
||
LastScanUtc = (Get-Date).ToUniversalTime().ToString('o')
|
||
FindingIds = @($FindingIds)
|
||
}
|
||
$json = $obj | ConvertTo-Json -Depth 4
|
||
Write-TextFileUtf8Bom -Path $ForwardingBaselineFile -Text $json
|
||
}
|
||
|
||
function Write-TextFileUtf8Bom {
|
||
param([string]$Path, [string]$Text)
|
||
[System.IO.File]::WriteAllText($Path, $Text, $script:Utf8BomEncoding)
|
||
}
|
||
|
||
# ============================================
|
||
# SCAN: QUEUES
|
||
# ============================================
|
||
|
||
function Get-QueueAlertState {
|
||
if (-not (Test-Path -LiteralPath $QueueAlertStateFile)) { return @{} }
|
||
try {
|
||
$h = @{}
|
||
(Get-Content -LiteralPath $QueueAlertStateFile -Raw -Encoding UTF8 | ConvertFrom-Json).PSObject.Properties | ForEach-Object {
|
||
$h[$_.Name] = [datetime]$_.Value
|
||
}
|
||
return $h
|
||
} catch { return @{} }
|
||
}
|
||
|
||
function Save-QueueAlertState {
|
||
param([hashtable]$State)
|
||
$obj = @{}
|
||
foreach ($k in $State.Keys) { $obj[$k] = $State[$k].ToUniversalTime().ToString('o') }
|
||
Write-TextFileUtf8Bom -Path $QueueAlertStateFile -Text ($obj | ConvertTo-Json)
|
||
}
|
||
|
||
function Invoke-ExchangeQueueScan {
|
||
$null = Import-ExchangeManagementShell
|
||
Write-ExchLog "Queues: threshold MessageCount > $QueueMessageCountThreshold"
|
||
|
||
$queues = @(Get-Queue -ErrorAction Stop)
|
||
$hot = @($queues | Where-Object { $_.MessageCount -gt $QueueMessageCountThreshold })
|
||
$state = Get-QueueAlertState
|
||
$now = Get-Date
|
||
|
||
if ($hot.Count -eq 0) {
|
||
Write-ExchLog "Queues: OK (total $($queues.Count), above threshold 0)"
|
||
Write-TextFileUtf8Bom -Path $QueuesHeartbeatFile -Text (Get-Date -Format 'yyyy-MM-dd HH:mm:ss')
|
||
return
|
||
}
|
||
|
||
foreach ($q in $hot) {
|
||
$qKey = [string]$q.Identity
|
||
$lastAlert = $null
|
||
if ($state.ContainsKey($qKey)) { $lastAlert = $state[$qKey] }
|
||
$cooldownOk = ($null -eq $lastAlert) -or (((Get-Date).ToUniversalTime() - $lastAlert.ToUniversalTime()).TotalSeconds -ge $QueueAlertCooldownSeconds)
|
||
if (-not $cooldownOk) {
|
||
Write-ExchLog "Queues: $($q.Identity) count=$($q.MessageCount) - cooldown, skip alert"
|
||
continue
|
||
}
|
||
|
||
$hId = ConvertTo-TelegramHtml $q.Identity
|
||
$msg = "<b>Exchange: transport queue</b>`r`n"
|
||
$msg += "Host: $(ConvertTo-TelegramHtml $env:COMPUTERNAME)`r`n"
|
||
$msg += "Queue: $hId`r`n"
|
||
$msg += "Messages: <b>$($q.MessageCount)</b> (threshold $QueueMessageCountThreshold)`r`n"
|
||
$msg += "Status: $(ConvertTo-TelegramHtml ([string]$q.Status))`r`n"
|
||
$msg += "Time: $(ConvertTo-TelegramHtml (Get-Date -Format 'dd.MM.yyyy HH:mm:ss'))"
|
||
|
||
if (Send-MonitorNotification -Message $msg -EmailSubject 'Exchange: transport queue') {
|
||
$state[$qKey] = $now
|
||
Write-ExchLog "Queues: alert sent for $($q.Identity)"
|
||
}
|
||
}
|
||
|
||
Save-QueueAlertState -State $state
|
||
Write-TextFileUtf8Bom -Path $QueuesHeartbeatFile -Text (Get-Date -Format 'yyyy-MM-dd HH:mm:ss')
|
||
}
|
||
|
||
# ============================================
|
||
# SCAN: FORWARDING
|
||
# ============================================
|
||
|
||
function Get-MailboxListForScan {
|
||
$null = Import-ExchangeManagementShell
|
||
|
||
if ($VipMailboxesOnly) {
|
||
if (-not (Test-VipMailboxScopeConfigured)) {
|
||
throw 'VipMailboxesOnly=$true but VipMailboxes and VipMailboxPatterns are empty - set them in exchange_monitor.settings.ps1'
|
||
}
|
||
$set = [System.Collections.Generic.HashSet[string]]::new([StringComparer]::OrdinalIgnoreCase)
|
||
foreach ($v in $VipMailboxes) {
|
||
if ([string]::IsNullOrWhiteSpace($v)) { continue }
|
||
if (Test-MailboxSkipInboxScan -PrimarySmtp $v) { continue }
|
||
$null = $set.Add($v.Trim().ToLowerInvariant())
|
||
}
|
||
if ($VipMailboxPatterns.Count -gt 0) {
|
||
$all = @(Get-Mailbox -ResultSize Unlimited -ErrorAction Stop)
|
||
foreach ($mb in $all) {
|
||
$smtp = [string]$mb.PrimarySmtpAddress
|
||
if ([string]::IsNullOrWhiteSpace($smtp)) { continue }
|
||
if (Test-MailboxExcluded -PrimarySmtp $smtp) { continue }
|
||
if (Test-MailboxSkipInboxScan -PrimarySmtp $smtp) { continue }
|
||
if (Test-MailboxInVipScope -PrimarySmtp $smtp) {
|
||
$null = $set.Add($smtp.ToLowerInvariant())
|
||
}
|
||
}
|
||
}
|
||
return @($set)
|
||
}
|
||
|
||
$all = @(Get-Mailbox -ResultSize Unlimited -ErrorAction Stop)
|
||
$list = [System.Collections.Generic.List[string]]::new()
|
||
foreach ($mb in $all) {
|
||
$smtp = [string]$mb.PrimarySmtpAddress
|
||
if ([string]::IsNullOrWhiteSpace($smtp)) { continue }
|
||
if (Test-MailboxExcluded -PrimarySmtp $smtp) { continue }
|
||
if (Test-MailboxSkipInboxScan -PrimarySmtp $smtp) { continue }
|
||
$list.Add($smtp.ToLowerInvariant()) | Out-Null
|
||
if ($MaxMailboxesPerRun -gt 0 -and $list.Count -ge $MaxMailboxesPerRun) { break }
|
||
}
|
||
return @($list)
|
||
}
|
||
|
||
function Scan-MailboxForwardingSettings {
|
||
param(
|
||
[System.Collections.Generic.HashSet[string]]$InternalDomains,
|
||
[System.Collections.Generic.List[object]]$Findings
|
||
)
|
||
|
||
if (-not $ScanMailboxForwarding) { return }
|
||
|
||
Write-ExchLog 'Forwarding: Get-Mailbox (ForwardingSmtpAddress / ForwardingAddress)'
|
||
$mbs = Get-Mailbox -ResultSize Unlimited -ErrorAction Stop | Where-Object {
|
||
$_.ForwardingSmtpAddress -or $_.ForwardingAddress
|
||
}
|
||
|
||
foreach ($mb in $mbs) {
|
||
$primary = [string]$mb.PrimarySmtpAddress
|
||
if (Test-MailboxExcluded -PrimarySmtp $primary) { continue }
|
||
if (-not (Test-MailboxInVipScope -PrimarySmtp $primary)) { continue }
|
||
|
||
$targets = @()
|
||
if ($mb.ForwardingSmtpAddress) {
|
||
$targets += @($mb.ForwardingSmtpAddress)
|
||
}
|
||
if ($mb.ForwardingAddress) {
|
||
$targets += @((Get-AddressesFromExchangeProperty -PropertyValue $mb.ForwardingAddress))
|
||
}
|
||
|
||
foreach ($t in $targets) {
|
||
if (-not (Test-IsExternalSmtpAddress -SmtpAddress $t -InternalDomains $InternalDomains -WhitelistDomains $ExternalDomainWhitelist)) {
|
||
continue
|
||
}
|
||
$sev = 'High'
|
||
$Findings.Add((New-ForwardingFinding -FindingType 'MailboxForwarding' -Mailbox $primary `
|
||
-RuleName '' -TargetAddress $t -Severity $sev -Extra @{
|
||
DeliverToMailboxAndForward = [string]$mb.DeliverToMailboxAndForward
|
||
})) | Out-Null
|
||
}
|
||
}
|
||
}
|
||
|
||
function Add-InboxRuleExternalForwardFindings {
|
||
param(
|
||
$Rule,
|
||
[string]$Mailbox,
|
||
[System.Collections.Generic.HashSet[string]]$InternalDomains,
|
||
[System.Collections.Generic.List[object]]$Findings
|
||
)
|
||
|
||
$props = @(
|
||
@{ Name = 'ForwardTo'; Value = $Rule.ForwardTo }
|
||
@{ Name = 'RedirectTo'; Value = $Rule.RedirectTo }
|
||
@{ Name = 'ForwardAsAttachmentTo'; Value = $Rule.ForwardAsAttachmentTo }
|
||
)
|
||
|
||
foreach ($p in $props) {
|
||
$addrs = Get-AddressesFromExchangeProperty -PropertyValue $p.Value
|
||
foreach ($addr in $addrs) {
|
||
if (-not (Test-IsExternalSmtpAddress -SmtpAddress $addr -InternalDomains $InternalDomains -WhitelistDomains $ExternalDomainWhitelist)) {
|
||
continue
|
||
}
|
||
$sev = 'High'
|
||
if (-not $Rule.Enabled) {
|
||
$sev = 'Medium (rule disabled)'
|
||
} elseif ($Rule.DeleteMessage -or $Rule.MarkAsRead) {
|
||
$sev = 'Critical'
|
||
}
|
||
$Findings.Add((New-ForwardingFinding -FindingType 'InboxRule' -Mailbox $Mailbox `
|
||
-RuleName [string]$Rule.Name -TargetAddress $addr -Severity $sev -Extra @{
|
||
Enabled = [bool]$Rule.Enabled
|
||
DeleteMessage = $Rule.DeleteMessage
|
||
MarkAsRead = $Rule.MarkAsRead
|
||
Property = $p.Name
|
||
})) | Out-Null
|
||
}
|
||
}
|
||
}
|
||
|
||
function Scan-InboxRulesForMailbox {
|
||
param(
|
||
[string]$Mailbox,
|
||
[System.Collections.Generic.HashSet[string]]$InternalDomains,
|
||
[System.Collections.Generic.List[object]]$Findings
|
||
)
|
||
|
||
if (Test-MailboxSkipInboxScan -PrimarySmtp $Mailbox) {
|
||
Write-ExchLog "Inbox rules: SKIP $Mailbox (SkipInboxScanMailboxes)"
|
||
return
|
||
}
|
||
|
||
try {
|
||
$rules = @(Get-InboxRule -Mailbox $Mailbox -ErrorAction Stop)
|
||
} catch {
|
||
Write-ExchLog "Inbox rules: SKIP $Mailbox (Get-InboxRule failed: $($_.Exception.Message))"
|
||
return
|
||
}
|
||
|
||
foreach ($rule in $rules) {
|
||
if ($rule.Enabled) {
|
||
Add-InboxRuleExternalForwardFindings -Rule $rule -Mailbox $Mailbox -InternalDomains $InternalDomains -Findings $Findings
|
||
} elseif ($ScanDisabledInboxRulesWithExternalForward) {
|
||
Add-InboxRuleExternalForwardFindings -Rule $rule -Mailbox $Mailbox -InternalDomains $InternalDomains -Findings $Findings
|
||
}
|
||
}
|
||
}
|
||
|
||
function Scan-TransportRulesExternalForward {
|
||
param(
|
||
[System.Collections.Generic.HashSet[string]]$InternalDomains,
|
||
[System.Collections.Generic.List[object]]$Findings
|
||
)
|
||
|
||
if (-not $ScanTransportRules) { return }
|
||
|
||
Write-ExchLog 'Forwarding: Get-TransportRule'
|
||
$rules = @(Get-TransportRule -ErrorAction SilentlyContinue | Where-Object { $_.State -eq 'Enabled' })
|
||
foreach ($rule in $rules) {
|
||
$props = @(
|
||
$rule.RedirectMessageTo
|
||
$rule.BlindCopyTo
|
||
$rule.CopyTo
|
||
)
|
||
foreach ($pv in $props) {
|
||
$addrs = Get-AddressesFromExchangeProperty -PropertyValue $pv
|
||
foreach ($addr in $addrs) {
|
||
if (-not (Test-IsExternalSmtpAddress -SmtpAddress $addr -InternalDomains $InternalDomains -WhitelistDomains $ExternalDomainWhitelist)) {
|
||
continue
|
||
}
|
||
$Findings.Add((New-ForwardingFinding -FindingType 'TransportRule' -Mailbox '(transport)' `
|
||
-RuleName [string]$rule.Name -TargetAddress $addr -Severity 'High' -Extra @{})) | Out-Null
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
function Send-ExchangeInboxScanSummary {
|
||
param(
|
||
[int]$TotalFindings,
|
||
[int]$NewFindings,
|
||
[int]$MailboxCount,
|
||
[bool]$FirstBaselineSeeded,
|
||
[string]$ScopeLabel
|
||
)
|
||
|
||
if (-not $SendInboxScanSummary) { return }
|
||
|
||
$hHost = ConvertTo-TelegramHtml $env:COMPUTERNAME
|
||
$msg = "<b>Exchange: forwarding scan summary</b>`r`n"
|
||
$msg += "Host: $hHost | v$ScriptVersion`r`n"
|
||
$msg += "Scope: $(ConvertTo-TelegramHtml $ScopeLabel)`r`n"
|
||
$msg += "Mailboxes (Inbox rules): $MailboxCount`r`n"
|
||
$msg += "Findings total: $TotalFindings | new: $NewFindings`r`n"
|
||
if ($FirstBaselineSeeded) {
|
||
$msg += "<i>First baseline: existing forwards suppressed (SuppressAlertsOnFirstBaselineRun).</i>`r`n"
|
||
}
|
||
Send-MonitorNotification -Message $msg -EmailSubject 'Exchange: scan summary' | Out-Null
|
||
}
|
||
|
||
function Invoke-ExchangeInboxAndForwardingScan {
|
||
$scopeLabel = Get-ExchangeInboxScanScopeLabel
|
||
Write-ExchLog "Inbox/Forwarding scan v$ScriptVersion; scope: $scopeLabel; notify: $(Get-NotifyChainHuman)"
|
||
$null = Import-ExchangeManagementShell
|
||
$internalDomains = Get-InternalAcceptedDomainNames
|
||
Write-ExchLog "Accepted domains (internal): $(@($internalDomains) -join ', ')"
|
||
|
||
$findings = [System.Collections.Generic.List[object]]::new()
|
||
|
||
Scan-MailboxForwardingSettings -InternalDomains $internalDomains -Findings $findings
|
||
|
||
$mailboxCount = 0
|
||
if ($ScanInboxRules) {
|
||
$mailboxes = @(Get-MailboxListForScan)
|
||
$mailboxCount = $mailboxes.Count
|
||
$skipList = @($SkipInboxScanMailboxes | Where-Object { -not [string]::IsNullOrWhiteSpace($_) })
|
||
if ($skipList.Count -gt 0) {
|
||
Write-ExchLog "Inbox rules: SkipInboxScanMailboxes: $($skipList -join ', ')"
|
||
}
|
||
Write-ExchLog "Inbox rules: mailboxes to scan: $mailboxCount ($scopeLabel)"
|
||
$idx = 0
|
||
foreach ($mb in $mailboxes) {
|
||
$idx++
|
||
Scan-InboxRulesForMailbox -Mailbox $mb -InternalDomains $internalDomains -Findings $findings
|
||
if ($idx % $InboxScanBatchSize -eq 0) {
|
||
Write-ExchLog "Inbox rules: processed $idx / $($mailboxes.Count)"
|
||
Start-Sleep -Seconds $InboxScanBatchDelaySeconds
|
||
}
|
||
}
|
||
}
|
||
|
||
Scan-TransportRulesExternalForward -InternalDomains $internalDomains -Findings $findings
|
||
|
||
$allIds = @($findings | ForEach-Object { $_.Id })
|
||
$baseline = Get-ForwardingBaseline
|
||
$prevSet = [System.Collections.Generic.HashSet[string]]::new([StringComparer]::OrdinalIgnoreCase)
|
||
foreach ($id in $baseline.FindingIds) { $null = $prevSet.Add($id) }
|
||
|
||
$newFindings = @($findings | Where-Object { -not $prevSet.Contains($_.Id) })
|
||
Write-ExchLog "Forwarding: total $($findings.Count), new $($newFindings.Count)"
|
||
|
||
$isFirstBaseline = ($baseline.FindingIds.Count -eq 0) -and ($findings.Count -gt 0)
|
||
$firstBaselineSeeded = $false
|
||
|
||
$toAlert = if ($AlertOnlyOnNewForwardingFindings) { $newFindings } else { @($findings) }
|
||
if ($SuppressAlertsOnFirstBaselineRun -and $isFirstBaseline) {
|
||
Write-ExchLog 'Forwarding: first baseline - alerts suppressed (SuppressAlertsOnFirstBaselineRun)'
|
||
$firstBaselineSeeded = $true
|
||
$toAlert = @()
|
||
}
|
||
foreach ($f in $toAlert) {
|
||
$body = Format-ForwardingFindingMessage -Finding $f
|
||
Send-MonitorNotification -Message $body -EmailSubject 'Exchange: external forward' | Out-Null
|
||
}
|
||
|
||
if ($findings.Count -eq 0 -and $NotifyWhenForwardingScanClean) {
|
||
$summary = "<b>Exchange: forwarding scan</b>`r`nNo external forward (Inbox / mailbox / transport).`r`nHost: $(ConvertTo-TelegramHtml $env:COMPUTERNAME)"
|
||
Send-MonitorNotification -Message $summary -EmailSubject 'Exchange: forward scan OK' | Out-Null
|
||
} elseif ($newFindings.Count -eq 0 -and $AlertOnlyOnNewForwardingFindings) {
|
||
Write-ExchLog 'Forwarding: no changes (known findings in baseline only)'
|
||
}
|
||
|
||
Save-ForwardingBaseline -FindingIds $allIds
|
||
Write-TextFileUtf8Bom -Path $InboxHeartbeatFile -Text (Get-Date -Format 'yyyy-MM-dd HH:mm:ss')
|
||
Send-ExchangeInboxScanSummary -TotalFindings $findings.Count -NewFindings $newFindings.Count `
|
||
-MailboxCount $mailboxCount -FirstBaselineSeeded $firstBaselineSeeded -ScopeLabel $scopeLabel
|
||
Write-ExchLog 'Inbox/Forwarding scan finished'
|
||
}
|
||
|
||
# ============================================
|
||
# WATCHDOG
|
||
# ============================================
|
||
|
||
function Get-HeartbeatAgeSeconds {
|
||
param([string]$Path)
|
||
if (-not (Test-Path -LiteralPath $Path)) { return [double]::PositiveInfinity }
|
||
try {
|
||
$t = Get-Content -LiteralPath $Path -TotalCount 1 -ErrorAction Stop
|
||
if ([string]::IsNullOrWhiteSpace($t)) { return [double]::PositiveInfinity }
|
||
$dt = [datetime]::ParseExact($t.Trim(), 'yyyy-MM-dd HH:mm:ss', $null)
|
||
return ((Get-Date) - $dt).TotalSeconds
|
||
} catch { return [double]::PositiveInfinity }
|
||
}
|
||
|
||
function Invoke-ExchangeWatchdog {
|
||
Write-WdLog "Watchdog Exchange-MailSecurity v$ScriptVersion"
|
||
$issues = [System.Collections.Generic.List[string]]::new()
|
||
|
||
$qAge = Get-HeartbeatAgeSeconds -Path $QueuesHeartbeatFile
|
||
if ($qAge -gt $QueuesHeartbeatStaleSeconds) {
|
||
$issues.Add("Queues: no successful scan > $([int]$qAge) s (threshold $QueuesHeartbeatStaleSeconds s)") | Out-Null
|
||
}
|
||
|
||
$iAge = Get-HeartbeatAgeSeconds -Path $InboxHeartbeatFile
|
||
if ($iAge -gt $InboxHeartbeatStaleSeconds) {
|
||
$issues.Add("Inbox/Forwarding: no successful scan > $([int]$iAge) s (threshold $InboxHeartbeatStaleSeconds s)") | Out-Null
|
||
}
|
||
|
||
if ($issues.Count -eq 0) {
|
||
Write-WdLog 'Watchdog: heartbeat OK'
|
||
exit 0
|
||
}
|
||
|
||
$msg = "<b>Exchange Mail Security: watchdog</b>`r`n"
|
||
$msg += "Host: $(ConvertTo-TelegramHtml $env:COMPUTERNAME)`r`n"
|
||
foreach ($iss in $issues) {
|
||
$msg += "- $(ConvertTo-TelegramHtml $iss)`r`n"
|
||
}
|
||
|
||
Send-MonitorNotification -Message $msg -EmailSubject 'Exchange monitor: watchdog' | Out-Null
|
||
Write-WdLog "Watchdog: alert sent ($($issues.Count) issue(s))"
|
||
exit 1
|
||
}
|
||
|
||
# ============================================
|
||
# MAIN
|
||
# ============================================
|
||
|
||
if (-not (Test-RunningElevated)) {
|
||
Write-ExchLog 'WARNING: not running elevated - EMS/tasks may fail.'
|
||
}
|
||
|
||
Write-ExchLog "=== Exchange-MailSecurity v$ScriptVersion Mode=$Mode ==="
|
||
|
||
try {
|
||
switch ($Mode) {
|
||
'Queues' { Invoke-ExchangeQueueScan }
|
||
'Inbox' { Invoke-ExchangeInboxAndForwardingScan }
|
||
'Watchdog' { Invoke-ExchangeWatchdog }
|
||
default { throw "Unknown Mode: $Mode" }
|
||
}
|
||
} catch {
|
||
Write-ExchLog "ERROR: $($_.Exception.Message)"
|
||
if ($_.ScriptStackTrace) { Write-ExchLog $_.ScriptStackTrace }
|
||
exit 1
|
||
}
|
||
|
||
exit 0
|