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Hide scheduled task PowerShell launches

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This commit is contained in:
Meta Vens 2026-04-26 02:21:44 +01:00
commit aada991fb7
3 changed files with 28 additions and 4 deletions
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6
scripts/install-offsite-backup-task.ps1
View file

@ -10,6 +10,7 @@ $ErrorActionPreference = "Stop"
$repoRoot = Split-Path -Parent $PSScriptRoot
$envFile = Join-Path $repoRoot ".env"
$syncScript = Join-Path $PSScriptRoot "sync-voidbot-backup-offsite.ps1"
$hiddenLauncher = Join-Path $PSScriptRoot "run-hidden-powershell.vbs"
function Read-DotEnv {
param(
@ -67,7 +68,8 @@ if (-not ($config.ContainsKey("OFFSITE_BACKUP_SSH_TARGET")) -or [string]::IsNull
}
$runAt = [DateTime]::ParseExact($taskTimeValue, "HH:mm", [System.Globalization.CultureInfo]::InvariantCulture)
$action = New-ScheduledTaskAction -Execute "powershell.exe" -Argument "-NoProfile -NonInteractive -WindowStyle Hidden -ExecutionPolicy Bypass -File `"$syncScript`""
# Use WSH as a GUI host so the interactive task can stay hidden without flashing a console.
$action = New-ScheduledTaskAction -Execute "wscript.exe" -Argument "//B //nologo `"$hiddenLauncher`" -NoProfile -NonInteractive -WindowStyle Hidden -ExecutionPolicy Bypass -File `"$syncScript`""
$trigger = New-ScheduledTaskTrigger -Daily -At $runAt
$settings = New-ScheduledTaskSettingsSet -StartWhenAvailable -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries -ExecutionTimeLimit (New-TimeSpan -Hours 6)
$principal = New-ScheduledTaskPrincipal -UserId "$env:USERDOMAIN\$env:USERNAME" -LogonType Interactive -RunLevel Limited
@ -79,7 +81,7 @@ Write-Host "Installed scheduled task: $taskNameValue"
Write-Host "Schedule: daily at $taskTimeValue"
Write-Host "Task runs as: $($env:USERDOMAIN)\$($env:USERNAME)"
Write-Host "Logon mode: Interactive"
Write-Host "Window mode: Hidden"
Write-Host "Launcher: wscript.exe hidden PowerShell shim"
Write-Host "Execution time limit: 6 hours"
if ($RunNow) {

6
scripts/install-operations-watchdog-task.ps1
View file

@ -11,6 +11,7 @@ $ProgressPreference = "SilentlyContinue"
$repoRoot = Split-Path -Parent $PSScriptRoot
$envFile = Join-Path $repoRoot ".env"
$checkScript = Join-Path $PSScriptRoot "check-voidbot-operations.ps1"
$hiddenLauncher = Join-Path $PSScriptRoot "run-hidden-powershell.vbs"
function Read-DotEnv {
param(
@ -76,7 +77,8 @@ if (-not ($config.ContainsKey("DISCORD_OWNER_ID")) -or [string]::IsNullOrWhiteSp
}
$startAt = (Get-Date).AddMinutes(5)
$action = New-ScheduledTaskAction -Execute "powershell.exe" -Argument "-NoProfile -NonInteractive -WindowStyle Hidden -ExecutionPolicy Bypass -File `"$checkScript`" -NotifyOwner -FailOnIssues"
# Use WSH as a GUI host so the interactive task can stay hidden without flashing a console.
$action = New-ScheduledTaskAction -Execute "wscript.exe" -Argument "//B //nologo `"$hiddenLauncher`" -NoProfile -NonInteractive -WindowStyle Hidden -ExecutionPolicy Bypass -File `"$checkScript`" -NotifyOwner -FailOnIssues"
$trigger = New-ScheduledTaskTrigger -Once -At $startAt -RepetitionInterval (New-TimeSpan -Minutes $intervalMinutesValue) -RepetitionDuration (New-TimeSpan -Days 3650)
$settings = New-ScheduledTaskSettingsSet -StartWhenAvailable -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries -ExecutionTimeLimit (New-TimeSpan -Minutes 15)
$principal = New-ScheduledTaskPrincipal -UserId "$env:USERDOMAIN\$env:USERNAME" -LogonType Interactive -RunLevel Limited
@ -88,7 +90,7 @@ Write-Host "Installed scheduled task: $taskNameValue"
Write-Host "Schedule: every $intervalMinutesValue minute(s), starting at $($startAt.ToString('yyyy-MM-dd HH:mm'))"
Write-Host "Task runs as: $($env:USERDOMAIN)\$($env:USERNAME)"
Write-Host "Logon mode: Interactive"
Write-Host "Window mode: Hidden"
Write-Host "Launcher: wscript.exe hidden PowerShell shim"
Write-Host "Execution time limit: 15 minutes"
if ($RunNow) {

20
scripts/run-hidden-powershell.vbs Normal file
View file

@ -0,0 +1,20 @@
Option Explicit
Dim shell
Dim command
Dim i
Dim exitCode
Set shell = CreateObject("WScript.Shell")
command = QuoteArg(shell.ExpandEnvironmentStrings("%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe"))
For i = 0 To WScript.Arguments.Count - 1
command = command & " " & QuoteArg(CStr(WScript.Arguments(i)))
Next
exitCode = shell.Run(command, 0, True)
WScript.Quit exitCode
Function QuoteArg(value)
QuoteArg = """" & Replace(value, """", """""") & """"
End Function