Script to help in monitoring event IDs related to changes in Netlogon secure channel connections associated with CVE-2020-1472

Applies to: Windows Server 2019, all editionsWindows Server 2016Windows Server, version 1909, all editions

Summary


The script available in this article is a companion to the information in How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472.  It is provided as-is.

The script will process EVTX files exported from Event Viewer and creates a Microsoft Excel spreadsheet containing pivot tables for the various issues and the devices in your environment that triggered the events.  The script requires PowerShell and Microsoft Excel 2013 or later (64bit recommended for larger data sets).

Script last updated September 27, 2020.

Usage


You will need to export EVTX files from the Domain Controllers (DCs) you're monitoring for the issues described in KB4557222.  To do this, open Event Viewer by selecting Start, type event viewer and select it.  Once Event Viewer opens, expand Windows Logs, right click or long press on System and select Save All Events As... and save the file somewhere to allow processing of the file.

The script can process more than one EVTX file at a time if you would like.  The script can take a long time to complete on large data sets.  We also recommend you have the EVTX files local on the same device running the script, to help speed up processing of the files.

You will need to run the script in a PowerShell command prompt.  It does not need to be run as administrator. The script will run through prompts that you can answer as needed unless you set $mcScriptPrompts to $false.  If the EVTX files are in the same folder as the script, you do not need to supply a path to the files.

Customizing the script


Variable Description
$mcScriptPrompts

Values: $true, $false

Description: Default value is $true and will require input/interaction from the user. Can be set to $false if the EVTX files are in the same folder as the script and all other settings will run as defaults.

$mcMaxExport

Default value: 50000

Description: With default settings, the script will stop processing each EVTX file after exporting 50000 events to CSV files. If you are receiving errors related to memory from Microsoft Excel, you will need to lower this number or adjust what data is being process such as changing the $mcStartTime.

$mcMaxImport

Default value: 50000

Description: With default settings, the script will stop processing events after the current CSV file it is processing when it hits the max number of events 50000.  This means that when it hits the max number of events, it will complete the current CSV file it has started but will not start processing a new CSV file.

$mcStartTime

Default Value: '2020/05/26 11:06'

Description: This variable allows you to set a start time and the script will only process events after that date and time.  If you have already addressed devices up to a certain point, this allows you to target only events you have not yet addressed.

$mcMaxThreads

Default Value: 4

Description: This variable allows you to increase or decrease the number of threads used during importing the events from the EVXT files to CSV files.

 

Script


Below you will find the PowerShell script that you can use after customizing to your environment.  You will need to copy and paste this script into a CVE-2020-1472EventReader.ps1 file on the device you are using to process the events.

## CVE-2020-1472 Event Reader v1.1 9/27/2020# This script will:#    1. Scan system evtx in input file folder for event 5827, 5828,5829,5830 and 5831, exact data fields, export to 582#-*.CSV.#    2. Calls Excel to import resulting 582#-*.CSV, create pivot tables for common secure RPC analysis scenarios. Delete 582#-*.CSV afterward.#   Feel free to modify to fit your need.##   Script tries best effort match to help admin, feel free to modify.## Script requires Excel 2013 or later.#   64 bits Excel will allow creation of larger data import to XLS.## To use the script:#  1. Save system log as system.evtx to file.#  2. Follow on screen prompt to enter Path containing *.evtx and final xlsx.## More info https://support.microsoft.com/en-us/kb/4557222#   Change log > 1.1#     Fixed error level#     Switch Get-WinEvent over to FilterXPath for faster search#     Added script knob for LookbackDays for schduled review of progress in script#     Added %GrandTotal in Excel Pivot to help setting priority.#     Added script knobs for enable/disable ColorScale and DataBar#     Added $mcLookbackDays, $mcScriptPrompts, $mcServerEvents and $mcEvtPath for remote deployment to send data back to central share.## Script variables block, modify to fit your need$mcStartTime = '2020/05/10 06:06'   # TimeStamp to start searching for 5827-5831, in the form of 'yyyy/MM/dd HH:mm', where 1pm is 13, example: '2020/05/26 13:06' will list events starting 2020/05/26 1:06 PM, use it to measure progress.$mcLookbackDays = 0                       # When set to 0, script will use $mcStartTime. When set to a positive number, script will start search events in last x days. For examle: 1 will search events in last 24 hours.$mcScriptPrompts = $true            # Script default, $false for non-interactive mode, intended for schduled jobs or right click, run with Powershell.$mcCSVImport = $true                        # Set to $false for generating Evtx only, intended for saving Evtx from server's event service.$mcServerEvents = $false            # Generate related events from Local Server (LocalHost), intented for generating smaller EVTX & CSV for later processing (on another machine) instead of entire EVTX (when use in combo with $mcCSVImport)$mcEvtPath = ""                     # Default report path when $mcScriptPrompts=false, set to "" for script path.#Performace related knobs$mcMaxThreads = 4                   # Max concurrent Evtx to CSV export threads (jobs), hight number might hit File/IO bottleneck since all files are in one directory.$mcMaxExport = 1000                 # 1000 Max events to export per each EVTX, modify this if we are getting Excel memory error (or we just need first few evt for samples)$mcMaxImport = 1000                 # 1000 max events to import into excel, ##NOTE##: Once maxed out, Excel will finish current import file and stop future import(s), since import is single threaded, import might take a long time if set to high number.$mcColorScale = $true                         # Set to false to disable column ColorScale = speed up excel import & reduce memory requirement$mcDataBar = $true                           # Set to false to disable column DataBar = speed up excel import & reduce memory requirement (Note: DataBar is somewhat buggy compare to ColorScale on import, best to do it manually afterward if needed.)#--Default for remote Evtx collection-------------------------------------------------------  # $mcLookbackDays = 0   # $mcEvtPath = ""   # $mcScriptPrompts = $mcCSVImport = $false  # $mcServerEvents = $true #--Default for local non-inteactive report generation.--------------------------------------  # $mcLookbackDays = 0  # $mcEvtPath = ""   # $mcScriptPrompts = $mcServerEvents = $false  # $mcCSVImport = $true#----Functions--------------------------Function mcSetPivotField($mcPivotFieldSetting) { #Set pivot field attributes per MSDN https://msdn.microsoft.com/en-us/library/office/ff820762.aspx  if ($null -ne $mcPivotFieldSetting[1]) { $mcPivotFieldSetting[0].Orientation  = $mcPivotFieldSetting[1]} # 1 Orientation { $xlRowField | $xlDataField |$xlColumnField }, in XlPivotFieldOrientation  if ($null -ne $mcPivotFieldSetting[2]) { $mcPivotFieldSetting[0].NumberFormat = $mcPivotFieldSetting[2]} # 2 NumberFormat { $mcNumberF | $mcPercentF }  if ($null -ne $mcPivotFieldSetting[3]) { $mcPivotFieldSetting[0].Function     = $mcPivotFieldSetting[3]} # 3 Function { $xlAverage | $xlSum | $xlCount }, in XlConsolidationFunction  if ($null -ne $mcPivotFieldSetting[4]) { $mcPivotFieldSetting[0].Calculation  = $mcPivotFieldSetting[4]} # 4 Calculation { $xlPercentOfTotal | $xlPercentRunningTotal }, in XlPivotFieldCalculation  if ($null -ne $mcPivotFieldSetting[5]) { $mcPivotFieldSetting[0].BaseField    = $mcPivotFieldSetting[5]} # 5 BaseField  <String>  if ($null -ne $mcPivotFieldSetting[6]) { $mcPivotFieldSetting[0].Name         = $mcPivotFieldSetting[6]} # 6 Name <String>  if ($null -ne $mcPivotFieldSetting[7]) { $mcPivotFieldSetting[0].Position     = $mcPivotFieldSetting[7]} # 7 Position}Function mcSetPivotTableFormat($mcPivotTable) { # Set pivotTable cosmetics and sheet name  $mcPT=$mcPivotTable[0].PivotTables($mcPivotTable[1])  $mcPT.HasAutoFormat = $False #2.turn of AutoColumnWidth  for ($i=2; $i -lt 9; $i++) { #3. SetColumnWidth for Sheet($mcPivotTable[0]),PivotTable($mcPivotTable[1]),Column($mcPivotTable[2-8])    if ($null -ne $mcPivotTable[$i]) { $mcPivotTable[0].columns.item(($i-1)).columnWidth = $mcPivotTable[$i]}  }  $mcPivotTable[0].Application.ActiveWindow.SplitRow = 3  $mcPivotTable[0].Application.ActiveWindow.SplitColumn = 2  $mcPivotTable[0].Application.ActiveWindow.FreezePanes = $true # Freeze first 2 columns  $mcPivotTable[0].Cells.Item(1,1)="Filter"  $mcPivotTable[0].Cells.Item(3,1)=$mcPivotTable[9]                         # $mcPivotTable[9] = Table Name @ R3C1  $mcPivotTable[0].Name=$mcPivotTable[10]                                   # $mcPivotTable[10] = Sheet Name  $mcRC = ($mcPivotTable[0].UsedRange.Cells).Rows.Count-1  if (($null -ne $mcPivotTable[11]) -and ($mcColorScale -eq $true)) {       # $mcPivotTable[11] = ColorScale column    $mColorScaleRange='$'+$mcPivotTable[11]+'$4:$'+$mcPivotTable[11]+'$'+$mcRC    [Void]$mcPivotTable[0].Range($mColorScaleRange).FormatConditions.AddColorScale(3)    $mcPivotTable[0].Range($mColorScaleRange).FormatConditions.item(1).ColorScaleCriteria.item(1).type = 1 #xlConditionValueLowestValue    $mcPivotTable[0].Range($mColorScaleRange).FormatConditions.item(1).ColorScaleCriteria.item(1).FormatColor.Color = 8109667    $mcPivotTable[0].Range($mColorScaleRange).FormatConditions.item(1).ColorScaleCriteria.item(2).FormatColor.Color = 8711167    $mcPivotTable[0].Range($mColorScaleRange).FormatConditions.item(1).ColorScaleCriteria.item(3).type = 2 #xlConditionValueHighestValue    $mcPivotTable[0].Range($mColorScaleRange).FormatConditions.item(1).ColorScaleCriteria.item(3).FormatColor.Color = 7039480  }  if (($null -ne $mcPivotTable[12]) -and ($mcDataBar -eq $true)) {          # $mcPivotTable[12] = DataBar column      $mcDataBarRange='$'+$mcPivotTable[12]+'$4:$'+$mcPivotTable[12]+'$'+$mcRC      [void]$mcPivotTable[0].Range($mcDataBarRange).FormatConditions.AddDatabar()  }}Function mcSortPivotFields($mcPF) { #Sort on $mcPF and Expand later pivot fields  for ($i=2; $i -lt 5; $i++) { #Expand pivot fields    if ($null -ne $mcPF[$i]) {      $mcPF[$i].showDetail = $true    }  }  [void]($mcPF[0].Cells.Item(4, 2)).sort(($mcPF[0].Cells.Item(4, 2)), 2)  # Decending counts  [void]($mcPF[0].Cells.Item(4, 1)).sort(($mcPF[0].Cells.Item(4, 1)), 1)  # Accending alpha}Function mcSetPivotTableHeaderColor($mcSheet) { #Set PiviotTable Header Color for easier reading  for ($i=1; $i -lt 5; $i++) { #Set header(s) color    if ($null -ne $mcSheet[$i]) { $mcSheet[0].Range(($mcSheet[$i]+"3")).interior.Colorindex = 37 }  }}#---- Main ------------------------------------------------------------------------------------------------------------$mcProgressBarDelay = 0                    # Delay in seconds after each ProgressBar update#---- init prompts-------  $mcScriptPath = Split-Path ((Get-Variable MyInvocation -Scope 0).Value).MyCommand.Path  if ([string]::IsNullOrWhiteSpace($mcEvtPath)) {    $mcEvtPath = $mcScriptPath  }  if ($mcScriptPrompts) {  #Interactive mcScriptPrompts    $mcPromptedServerEvent = Read-Host "Read system log from [D]isk or [S]erver's event service? For example, 'D' to read from disk. `n Or press [Enter] to read events from Disk (*.evtx).`n"      if ([string]::IsNullOrWhiteSpace($mcPromptedServerEvent) -or ($mcPromptedServerEvent -eq 'D')) {        $mcServerEvents = $false      } else {         $mcServerEvents = $true      }    $mcPromptedEvtPath = Read-Host "Enter local, mapped or UNC path to saved system evtxs or previously generated 582-*.csv. Be sure to remove trailing blank. For Example (c:\EventData)`n Or press [Enter] to use script path for data files.`n"      if (-not [string]::IsNullOrWhiteSpace($mcPromptedEvtPath)) {        $mcEvtPath= $mcPromptedEvtPath      }    $mcPromptedLookbackDays = Read-Host "How many days in recent events we want to report? For example [2] for last 48 hours.`n or press [Enter] for all past events.`n"      if (-not [string]::IsNullOrWhiteSpace($mcPromptedLookbackDays)) {        $mcLookbackDays= $mcPromptedLookbackDays      }  }  if ($mcLookbackDays -gt 0) { $mcStartTime=(get-date).AddDays(0-$mcLookbackDays)}  #Echo script parameters  if ($mcServerEvents) { Write-Host 'Reading events 5827-5831 from Server:'$env:computername -ForegroundColor Blue }    else { Write-Host 'Reading events 5827-5831 from disk.' -ForegroundColor Green }  Write-Host '  Using folder:'$mcEvtPath 'for events starting:'$mcStartTime 'under UserAccount:'$Env:UserDomain'\'$Env:UserName -ForegroundColor Cyan  # Read-Host 'Ready?'#----  Write evtx from Server's event service to disk ---------------------------------------------------if ($mcServerEvents) {  $mUStartTime = ([datetime]$mcStartTime).ToUniversalTime().ToString("s")  $mToday=Get-Date    $mcEvtFileName=$mcEvtPath+'\'+'582#-'+[string]$mToday.Year+'-'+([string]$mToday.Month).PadLeft(2,'0')+'-'+([string]$mToday.Day).PadLeft(2,'0')+' Netlogon RPC events - '+$env:computername+'.evtx'  Remove-Item $mcEvtFileName -ErrorAction SilentlyContinue # remove same day report.  wevtutil epl System $mcEvtFileName /q:"Event[ System[ (Level=2 or Level=3) and (EventID=5827 or EventID=5828 or EventID=5829 or EventID=5830 or EventID=5831 or EventID=6005) and TimeCreated[@SystemTime>='$mUStartTime'] ] ]" #Note added 6005 to test time range.}#----   Export evtx to CSV---------------------------------------------------$mFiles = Get-ChildItem -Path $mcEvtPath | Where-Object {$_.name -clike '*.evtx'}if (-not $mcCSVImport) { $mFiles = $null } #Skip generation of CSV if excel import is not needed.ForEach ($mFile in $mFiles) { #Loop through *.evtx  $mFile | Add-Member -MemberType NoteProperty -Name MaxEvents -force -Value $mcMaxExport  $mFile | Add-Member -MemberType NoteProperty -Name StartTime -force -Value $mcStartTime  ########### Job [ Job start code 1/3 ###########  Start-Job -ArgumentList (,$mFile) -ScriptBlock { #Start-Job for reading each files    param ($mFile)    ########### Job ] ###########    Write-Host "Reading $mFile"    $mUStartTime = ([datetime]$mFile.StartTime).ToUniversalTime().ToString("s")    $mc582s = Get-WinEvent -Path $mFile.FullName -FilterXPath "Event[ System[ (Level=2 or Level=3) and (EventID=5827 or EventID=5828 or EventID=5829 or EventID=5830 or EventID=5831) and TimeCreated[@SystemTime>='$mUStartTime'] ] ]" -MaxEvents $mfile.MaxEvents -ErrorAction SilentlyContinue    If ($null -ne $mc582s) {      $mcOutFile = $mFile.DirectoryName+'\582-'+$mFile.Name+'.csv'      Write-host '  Event 5827~5831, found, generating '$mcOutFile -ForegroundColor Green      $mc582sOut = @() #Array for exporting CSV items      ForEach ($mc582 in $mc582s) {        $mObject = New-Object System.Object        $mObject | Add-Member -MemberType NoteProperty -Name EventSource -force -value $mc582.MachineName        $mObject | Add-Member -MemberType NoteProperty -Name EventTime -force -value $mc582.TimeCreated        $mObject | Add-Member -MemberType NoteProperty -Name EventID -force -value $mc582.ID        switch ($mc582.ID) {          5827 { #Denided Unsecure RPC machine client            $mObject | Add-Member -MemberType NoteProperty -Name NRPCType -force -value '2 - Denied Unsecure NRPC Evt:5827,5828 -->> Action: Enable secure NRPC'            $mObject | Add-Member -MemberType NoteProperty -Name Name -force -value $mc582.Properties[0].value            $mObject | Add-Member -MemberType NoteProperty -Name DomainName -force -value $mc582.Properties[1].value            $mObject | Add-Member -MemberType NoteProperty -Name AccountType -force -value $mc582.Properties[2].value            $mObject | Add-Member -MemberType NoteProperty -Name MachineOS -force -value $mc582.Properties[3].value            $mObject | Add-Member -MemberType NoteProperty -Name MachineOsBuild -force -value $mc582.Properties[4].value            $mObject | Add-Member -MemberType NoteProperty -Name MachineOsServicePack -force -value $mc582.Properties[5].value            }          5829 { #Temp Allowed Unsecure RPC machine client            $mObject | Add-Member -MemberType NoteProperty -Name NRPCType -force -value '1 - TempAllowed Unsecure NRPC Evt:5829 -->> Action: Contact vendor'            $mObject | Add-Member -MemberType NoteProperty -Name Name -force -value $mc582.Properties[0].value            $mObject | Add-Member -MemberType NoteProperty -Name DomainName -force -value $mc582.Properties[1].value            $mObject | Add-Member -MemberType NoteProperty -Name AccountType -force -value $mc582.Properties[2].value            $mObject | Add-Member -MemberType NoteProperty -Name MachineOS -force -value $mc582.Properties[3].value            $mObject | Add-Member -MemberType NoteProperty -Name MachineOsBuild -force -value $mc582.Properties[4].value            $mObject | Add-Member -MemberType NoteProperty -Name MachineOsServicePack -force -value $mc582.Properties[5].value            }          5830 { #Allowed Unsecure RPC machine client            $mObject | Add-Member -MemberType NoteProperty -Name NRPCType -force -value '3 - Allowed Unsecure NRPC Evt:5830,5831 -->> Action: Enable secure NRPC'            $mObject | Add-Member -MemberType NoteProperty -Name Name -force -value $mc582.Properties[0].value            $mObject | Add-Member -MemberType NoteProperty -Name DomainName -force -value $mc582.Properties[1].value            $mObject | Add-Member -MemberType NoteProperty -Name AccountType -force -value $mc582.Properties[2].value            $mObject | Add-Member -MemberType NoteProperty -Name MachineOS -force -value $mc582.Properties[3].value            $mObject | Add-Member -MemberType NoteProperty -Name MachineOsBuild -force -value $mc582.Properties[4].value            $mObject | Add-Member -MemberType NoteProperty -Name MachineOsServicePack -force -value $mc582.Properties[5].value            }          5828 { #Temp Allowed Unsecure RPC trust            $mObject | Add-Member -MemberType NoteProperty -Name NRPCType -force -value '2 - Denied Unsecure NRPC Evt:5827,5828 -->> Action: Enable secure NRPC'            $mObject | Add-Member -MemberType NoteProperty -Name Name -force -value $mc582.Properties[1].value            $mObject | Add-Member -MemberType NoteProperty -Name DomainName -force -value $mc582.Properties[2].value            $mObject | Add-Member -MemberType NoteProperty -Name AccountType -force -value $mc582.Properties[0].value            $mObject | Add-Member -MemberType NoteProperty -Name MachineOS -force -value 'Domain Trust'            $mObject | Add-Member -MemberType NoteProperty -Name MachineOsBuild -force -value 'N/A'            $mObject | Add-Member -MemberType NoteProperty -Name MachineOsServicePack -force -value 'N/A'            }          5831 { #Allowed Unsecure RPC trust            $mObject | Add-Member -MemberType NoteProperty -Name NRPCType -force -value '3 - Allowed Unsecure NRPC Evt:5830,5831 -->> Action: Enable secure NRPC'            $mObject | Add-Member -MemberType NoteProperty -Name Name -force -value $mc582.Properties[1].value            $mObject | Add-Member -MemberType NoteProperty -Name DomainName -force -value $mc582.Properties[2].value            $mObject | Add-Member -MemberType NoteProperty -Name AccountType -force -value $mc582.Properties[0].value            $mObject | Add-Member -MemberType NoteProperty -Name MachineOS -force -value 'Domain Trust'            $mObject | Add-Member -MemberType NoteProperty -Name MachineOsBuild -force -value 'N/A'            $mObject | Add-Member -MemberType NoteProperty -Name MachineOsServicePack -force -value 'N/A'            }        }        $mObject.Name = $mObject.Name.Trim()        $mObject.DomainName = $mObject.DomainName.Trim()        $mObject.AccountType = $mObject.AccountType.Trim()        $mObject.MachineOS = $mObject.MachineOS.Trim()        $mObject.MachineOsBuild = $mObject.MachineOsBuild.Trim()        $mObject.MachineOsServicePack = $mObject.MachineOsServicePack.Trim()          $mc582sOut += $mObject      }      $mc582sout | ConvertTo-Csv -NoTypeInformation | Out-File $mcOutFile    } else {      Write-Host '  Event 5827~5831 not found in' $mfile -ForegroundColor Red    }    ###########Job [ # Job Maxthread code 2/3 ###########  } | Out-Null #Job output #Job output  Write-host '   Processing: '$mFile.name  While((Get-Job -State 'Running').Count -ge $mcMaxThreads) { Start-Sleep -Milliseconds 10 } # Pause, only run $mcMaxThreads number of jobs.  ###########Job ] ###########}##########Job [ # Job clean out code 3/3 ###########While((Get-Job -State 'Running').Count -gt 0) {  Write-Progress -Activity "Exporting evtx" -PercentComplete ((($mfiles.Count-(Get-Job -State 'Running').Count)/$mfiles.Count)*100)  Start-Sleep -Milliseconds 10} # wait for last job to complete before excel importGet-Job -State Completed | Remove-Job##########Job ] ###########  #----   Import csv to excel-----------------------------------------------------  if ($mcCSVImport -eq $true) {    Write-Host 'Connect to Excel for import CSV..' -ForegroundColor Blue    $mFiles = Get-ChildItem -Path $mcEvtPath | Where-Object {$_.name -clike '582-*.csv'}    If ($null -ne $mFiles) { #Create a new Excel workbook if there are CSV in directory.      Set-Location $mcEvtPath #for Import-Csv to read all files.      $mObject = Import-Csv $mFiles -Delimiter ','      Set-Location $mcScriptPath #Back to script path      $mcExcel = New-Object -ComObject excel.application      $mcWorkbooks = $mcExcel.Workbooks.Add()      $Sheet1 = $mcWorkbooks.worksheets.Item(1)        $mcCurrentRow = $mFileProcessed = 1      ForEach ($mFile in $mFiles) { #Define Excel TXT connector and import/append        Write-Progress -Activity "Importing $mFile" -PercentComplete (($mFileProcessed/$mFiles.Count)*100)           Start-Sleep $mcProgressBarDelay           $mFileProcessed=$mFileProcessed+1        if ($mcCurrentRow -le $mcMaxImport){ #Import only up to $mcMaxImport number of records.          $mcConnector = $Sheet1.QueryTables.add(("TEXT;" + $mcEvtPath+'\'+$mFile),$Sheet1.Range(('a'+($mcCurrentRow))))          $Sheet1.QueryTables.item($mcConnector.name).TextFileCommaDelimiter = $True          $Sheet1.QueryTables.item($mcConnector.name).TextFileParseType  = 1          [void]$Sheet1.QueryTables.item($mcConnector.name).Refresh()            if ($mcCurrentRow -ne 1) { [void]($Sheet1.Cells.Item($mcCurrentRow,1).entireRow).delete()} # Delete header on 2nd and later CSV.            $mcCurrentRow = $Sheet1.UsedRange.EntireRow.Count+1        } else {          Write-Output "    *** Max [ $mcMaxImport ] import events reached, skipping: $mFile"        }      }      #----   Customize XLS, Excel Globals-----------------------------------------https://msdn.microsoft.com/en-us/library/bb241425(v=office.12).aspx, https://msdn.microsoft.com/en-us/library/office/ff838592.aspx      $xlRowField = 1 #XlPivotFieldOrientation      $xlPageField = 3 #XlPivotFieldOrientation      $xlDataField = 4 #XlPivotFieldOrientation      $xlColumnField = 2 #XlPivotFieldOrientation      $xlAverage = -4106 #XlConsolidationFunction      $xlSum = -4157 #XlConsolidationFunction      $xlCount = -4112 #XlConsolidationFunction      $xlPercentOfTotal = 8 #XlPivotFieldCalculation      $xlPercentRunningTotal = 13 #XlPivotFieldCalculation      $mcNumberF = "###,###,###,###,###"      $mcPercentF = "#0.00%"      $mcDateF = "yyyy/m/d h:mm"      $mcDateGroupFlags=($false, $false, $true, $true, $true, $false, $false) # Months, Days, Hours, https://msdn.microsoft.com/en-us/library/office/ff839808.aspx      #-------#Sheet1 - RawData---------------------------------------------------------------      $Sheet1.Range("A1").Autofilter() | Out-Null      $Sheet1.Application.ActiveWindow.SplitRow = 1      $Sheet1.Application.ActiveWindow.FreezePanes = $true      Write-Progress -Activity "Created 0.Raw RPC events Tab" -PercentComplete 30        Start-Sleep $mcProgressBarDelay      #-------#Sheet2 - PivotTable1---------------------------------------------------------------      $Sheet2 = $mcWorkbooks.Worksheets.add()      $PivotTable1 = $mcWorkbooks.PivotCaches().Create(1,"Sheet1!R1C1:R$($Sheet1.UsedRange.Rows.count)C$($Sheet1.UsedRange.Columns.count)",5) # xlDatabase=1 xlPivotTableVersion15=5 Excel2013      $PivotTable1.CreatePivotTable("Sheet2!R1C1") | Out-Null        $mcPF00 = $Sheet2.PivotTables("PivotTable1").PivotFields("EventSource")        mcSetPivotField($mcPF00, $xlPageField, $null, $null, $null, $null, $null)        $mcPF0 = $Sheet2.PivotTables("PivotTable1").PivotFields("NRPCType")          mcSetPivotField($mcPF0, $xlRowField, $null, $null, $null, $null, $null)        $mcPF1 = $Sheet2.PivotTables("PivotTable1").PivotFields("MachineOS")          mcSetPivotField($mcPF1, $xlRowField, $null, $null, $null, $null, $null)        $mcPF2 = $Sheet2.PivotTables("PivotTable1").PivotFields("DomainName")          mcSetPivotField($mcPF2, $xlRowField, $null, $null, $null, $null, $null)        $mcPF3 = $Sheet2.PivotTables("PivotTable1").PivotFields("Name")          mcSetPivotField($mcPF3, $xlRowField, $null, $null, $null, $null, $null)        # Sum Values        $mcPF = $Sheet2.PivotTables("PivotTable1").PivotFields("EventTime")          mcSetPivotField($mcPF, $xlDataField, $mcNumberF, $null, $null, $null, "Event Count",1) # Sum Values 1        $mcPF = $Sheet2.PivotTables("PivotTable1").PivotFields("EventTime")          mcSetPivotField($mcPF, $xlDataField, $mcPercentF, $null, $xlPercentOfTotal, $null, "%GrandTotal",2)  # Sum Values 2        mcSetPivotTableFormat($Sheet2, "PivotTable1", 70, 12, $null, $null, $null, $null, $null,"NRPC Type", "1.OS,Domain,Client", "C","C") #Last 2 Param are ColorBar, DataBar        mcSortPivotFields($sheet2,$mcPF,$mcPF0)      mcSetPivotTableHeaderColor($Sheet2, "A","C")      [void]$Sheet2.Hyperlinks.add($Sheet2.Cells.Item(2,1)," https://support.microsoft.com/en-us/kb/4557222","KB 4557222: How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472","Click to read KB 4557222: How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472", "KB 4557222: How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472")      $Sheet2.Cells.Item(1,1).Formula='Source DC'      Write-Progress -Activity "Created Tab 1.NRPCType-OS,Domain,Client pivot table" -PercentComplete 60        Start-Sleep $mcProgressBarDelay      #-------#Sheet3 - PivotTable2---------------------------------------------------------------      $Sheet3 = $mcWorkbooks.Worksheets.add()      $PivotTable2 = $mcWorkbooks.PivotCaches().Create(1,"Sheet1!R1C1:R$($Sheet1.UsedRange.Rows.count)C$($Sheet1.UsedRange.Columns.count)",5) # xlDatabase=1 xlPivotTableVersion15=5 Excel2013      $PivotTable2.CreatePivotTable("Sheet3!R1C1") | Out-Null        $mcPF00 = $Sheet3.PivotTables("PivotTable2").PivotFields("EventSource")        mcSetPivotField($mcPF00, $xlPageField, $null, $null, $null, $null, $null)        $mcPF0 = $Sheet3.PivotTables("PivotTable2").PivotFields("NRPCType")          mcSetPivotField($mcPF0, $xlRowField, $null, $null, $null, $null, $null)        $mcPF1 = $Sheet3.PivotTables("PivotTable2").PivotFields("DomainName")          mcSetPivotField($mcPF1, $xlRowField, $null, $null, $null, $null, $null)        $mcPF2 = $Sheet3.PivotTables("PivotTable2").PivotFields("Name")          mcSetPivotField($mcPF2, $xlRowField, $null, $null, $null, $null, $null)        # Sum Values        $mcPF = $Sheet3.PivotTables("PivotTable2").PivotFields("EventTime")          mcSetPivotField($mcPF, $xlDataField, $mcNumberF, $null, $null, $null, "Event Count",1) # Sum Values 1        $mcPF = $Sheet3.PivotTables("PivotTable2").PivotFields("EventTime")          mcSetPivotField($mcPF, $xlDataField, $mcPercentF, $null, $xlPercentOfTotal, $null, "%GrandTotal",2) # Sum Values 2        mcSetPivotTableFormat($Sheet3, "PivotTable2", 70, 12, $null, $null, $null, $null, $null,"NRPC Type", "2.Domain,Client","C","C") #Last 2 Param are ColorBar, DataBar        mcSortPivotFields($Sheet3,$mcPF,$mcPF0)      mcSetPivotTableHeaderColor($Sheet3, "A","C")      [void]$Sheet3.Hyperlinks.add($Sheet3.Cells.Item(2,1)," https://support.microsoft.com/en-us/kb/4557222","KB 4557222: How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472","Click to read KB 4557222: How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472", "KB 4557222: How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472")      $Sheet3.Cells.Item(1,1).Formula='Source DC'      Write-Progress -Activity "Created Tab 2.NRPCType-Domain,Client pivot table" -PercentComplete 90        Start-Sleep $mcProgressBarDelay      #-------#$Sheet4 - $PivotTable3---------------------------------------------------------------      $Sheet4 = $mcWorkbooks.Worksheets.add()      $PivotTable3 = $mcWorkbooks.PivotCaches().Create(1,"Sheet1!R1C1:R$($Sheet1.UsedRange.Rows.count)C$($Sheet1.UsedRange.Columns.count)",5) # xlDatabase=1 xlPivotTableVersion15=5 Excel2013      $PivotTable3.CreatePivotTable("Sheet4!R1C1") | Out-Null      $Sheet4.name = "3.CustomPivot"      #--------#MainSheet work - et Sort sheet names in reverse--------------------------------------      $Sheet1.Name = "0.Raw NRPC events"      $Sheet2.Tab.ColorIndex = $Sheet3.Tab.ColorIndex =35      $mcWorkSheetNames = New-Object System.Collections.ArrayList      foreach ($mcWorkSheet in $mcWorkbooks.Worksheets) { $mcWorkSheetNames.add($mcWorkSheet.Name) | Out-null }      $mctmp = $mcWorkSheetNames.Sort() | Out-Null      For ($i=0; $i -lt $mcWorkSheetNames.Count-1; $i++){ #Sort name.        $mcTmp = $mcWorkSheetNames[$i]        $mcBefore = $mcWorkbooks.Worksheets.Item($mcTmp)        $mcAfter = $mcWorkbooks.Worksheets.Item($i+1)        $mcBefore.Move($mcAfter)      }      $Sheet1.Activate()      Write-Progress -Activity "Creating Excel sheets" -PercentComplete 100        Start-Sleep $mcProgressBarDelay      #-------General clean up. In non-interactive mode, delete CSV if CSV is imported to Excel.      $mcFileName = $null      if ($mcScriptPrompts ) {        $mcFileName = Read-Host "Enter a FileName to save extracted 5827-5831 events xlsx.`n Or press [Enter] to save as 582# %Year-%Month-%Day Netlogon RPC report.xlsx.`n"        $mcCleanup = Read-Host "Delete 582-*.CSV? ([Enter]/[Y] to delete, [N] to keep csv)`n"      }      if ([string]::IsNullOrWhiteSpace($mcFileName)) {        $mToday=Get-Date        $mcFileName='582# '+[string]$mToday.Year+'-'+([string]$mToday.Month).PadLeft(2,'0')+'-'+([string]$mToday.Day).PadLeft(2,'0')+' Netlogon RPC report'      }      Write-Host "Saving file to $mcEvtPath\$mcFileName.xlsx" -ForegroundColor Green        $mcWorkbooks.SaveAs($mcEvtPath+'\'+$mcFileName)      if ($mcCleanup -ne 'n') { #remove CSV in non-interactive and interactive's default        Set-Location $mcEvtPath         (Get-ChildItem -Path $mcEvtPath).name -clike '582-*.csv' | Remove-Item      }      # $mcExcel.visible = $true      $mcExcel.Quit()      [System.Runtime.Interopservices.Marshal]::ReleaseComObject($mcExcel) | Out-Null    } else { #end of mFiles      Write-Host "    No event found in $mcEvtPath." -ForegroundColor Red    }  }Write-Host 'Script completed.' -ForegroundColor Green