95 lines
3.0 KiB
PowerShell
95 lines
3.0 KiB
PowerShell
##################################################################################
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#
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# NAME: check_win_last_update.ps1
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#
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# AUTHOR: Peter Luetke-Bexten
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# COAUTHOR: Christoph Hamschmidt
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# EMAIL: peter.luetke-bexten (at) benteler.com
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#
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# COMMENT:
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# Script to calculate the Days since last Windows Update
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# which is understandable for every Manager :-}
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# should be called via NRPE/NSClient++
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# inspired by bratislav.stojkovic@gmail.com check_win_lastupdate.vbs
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# but with using Microsoft.Update.Session instead of Registry.
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# Registry query not working in W2016 or W10.
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#
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# NSCLIENT.ini:
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# check_win_lastupdate = cmd /c echo scriptspowershellcheck_win_last_update.ps1 $ARG1$ $ARG2$ ; exit($lastexitcode) | "C:WindowsSystem32WindowsPowerShellv1.0powershell.exe" -noninteractive -noprofile -ExecutionPolicy unrestricted -command -
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#
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# NRPE Check:
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# check_nrpe -H targethost -p 5666 -t 120 -u -c check_win_lastupdate -a 35 70
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#
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# CHANGELOG:
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# 1.0 20180126 - initial version
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#
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################################################################################
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# Script calculates curent date and date of last Windows Update Installation
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## Arguments
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#$wldays = $args[0]
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#$cldays = $args[1]
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$wldays = 90
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$cldays = 180
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## ReturnStates
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$returnStateOK = 0
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$returnStateWarning = 1
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$returnStateCritical = 2
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$returnStateUnknown = 3
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## Get lasat installed update and select date as object
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$Session = New-Object -ComObject Microsoft.Update.Session
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$Searcher = $Session.CreateUpdateSearcher()
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$HistoryCount = $Searcher.GetTotalHistoryCount()
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## http://msdn.microsoft.com/en-us/library/windows/desktop/aa386532%28v=vs.85%29.aspx
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$DatelastInstall = $Searcher.QueryHistory(0,$HistoryCount) | ForEach-Object {$_} | Select-Object -First 1 | Select-Object -Property Date
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## Get actual date
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$Datenow = Get-Date
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## Get number of days since list install
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$DayslastInstall = ($Datenow - $DatelastInstall.date).Days
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$DayslastInstalldate = ($Datenow.Date - $DatelastInstall.Date).Days
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## Debug
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# $DatelastInstall.ToString()
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# $DatelastInstall
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# $DatelastInstall.date
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# $Datenow
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# $Datenow.date
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# $DayslastInstall
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# $DayslastInstalldate
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If (!$wldays) {
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echo "Usage: check_win_last_update.ps1 "
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exit 3
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}
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# if ($DayslastInstall) {
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If ($DayslastInstalldate -eq 0) {
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Write-Host "OK - Patches applied $DayslastInstalldate days ago at $($DatelastInstall.Date)"
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exit $returnStateOK
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}
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Elseif ($DayslastInstall -lt $wldays) {
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Write-Host "OK - Patches applied $DayslastInstalldate days ago at $($DatelastInstall.Date)"
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exit $returnStateOK
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}
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Elseif ($DayslastInstall -lt $cldays) {
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Write-Host "WARNING - Patches applied $DayslastInstalldate days ago $($DatelastInstall.Date)"
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exit $returnStateWarning
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}
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Elseif ($DayslastInstall -gt $cldays) {
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Write-Host "CRITICAL - Patches applied $DayslastInstalldate days ago $($DatelastInstall.Date)"
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exit $returnStateCritical
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}
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Else {
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Write-Host "UNKNOWN"
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exit $returnStateUnknown
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}
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# } else {
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else {
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Write-Host "UNKNOWN - unable to get date of last Widows Update Installation"
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exit $returnStateUnknown
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} |