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Feature/apt hunter logon feature#47 (#74)
* Add Create-SecurityAuthenticationSummary * delete comment
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ogino
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Dec 22, 2021
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,184 @@ | ||
| function Logon-Number-To-HeaderValue($msgLogonType) { | ||
| $Header_Format = "Type{0}_({1})" | ||
| switch ( $msgLogonType ) { | ||
| "0" { $HeaderValue = [string]::Format($Header_Format,$msgLogonType,"System") } | ||
| "2" { $HeaderValue = [string]::Format($Header_Format,$msgLogonType,"Interactive") } | ||
| "3" { $HeaderValue = [string]::Format($Header_Format,$msgLogonType,"Network") } | ||
| "4" { $HeaderValue = [string]::Format($Header_Format,$msgLogonType,"Batch") } | ||
| "5" { $HeaderValue = [string]::Format($Header_Format,$msgLogonType,"Service") } | ||
| "7" { $HeaderValue = [string]::Format($Header_Format,$msgLogonType,"Unlock") } | ||
| "8" { $HeaderValue = [string]::Format($Header_Format,$msgLogonType,"NetworkCleartext") } | ||
| "9" { $HeaderValue = [string]::Format($Header_Format,$msgLogonType,"NewCredentials") } | ||
| "10" { $HeaderValue = [string]::Format($Header_Format,$msgLogonType,"RemoteInteractive") } | ||
| "11" { $HeaderValue = [string]::Format($Header_Format,$msgLogonType,"CachedInteractive") } | ||
| "12" { $HeaderValue = [string]::Format($Header_Format,$msgLogonType,"CachedRemoteInteractive") } | ||
| "13" { $HeaderValue = [string]::Format($Header_Format,$msgLogonType,"CachedUnlock") } | ||
| default { $HeaderValue = "Unknown" } | ||
| } | ||
| return $HeaderValue | ||
| } | ||
|
|
||
| #Template | ||
| $Authentication_Summary_Template = @{ | ||
| User = "" | ||
| } | ||
| [System.Collections.ArrayList]$Headers = @() | ||
| $Headers = @("User") | ||
|
|
||
| $LogonNumbers = @(0,2,3,4,5,7,8,9,10,11,12,13,14) | ||
| foreach ($LogonNumber in $LogonNumbers) { | ||
| $HeaderValue = Logon-Number-To-HeaderValue($LogonNumber) | ||
| $Authentication_Summary_Template[$HeaderValue] = 0 | ||
| $Headers += $HeaderValue | ||
| } | ||
| $Authentication_EventTypes = @("Successful_Logons","BadUser_Failed_Logons","BadPassword_Failed_Logons","UnknownReason_Failed_Logons") | ||
| $Authentication_Summary = @{} | ||
| $totalEventCountNum = 0 | ||
|
|
||
| function initialize_AuthenticationSummary { | ||
| $totalEventCountNum = 0 | ||
| $Authentication_Summary.clear() | ||
| foreach ( $eventType in $Authentication_EventTypes ){ | ||
| $Authentication_Summary[$eventType] = @() | ||
| } | ||
| } | ||
|
|
||
| function increment_eventCount($eventType, $targetUserName, $logonType) { | ||
| $isKnownUser = $False | ||
| $idx = 0 | ||
| $totalEventCountNum++ | ||
|
|
||
| foreach ( $user_summary in $Authentication_Summary[$eventType] ) { | ||
| If ( $user_summary["User"] -eq $targetUserName ) { $isKnownUser = $True; break } | ||
| $idx++ | ||
| } | ||
|
|
||
| $key = Logon-Number-To-HeaderValue($logonType) | ||
| If ( $isKnownUser -eq $True ){ | ||
| $Authentication_Summary[$eventType][$idx][$key]++ | ||
| } | ||
| else { | ||
| $new_user = $Authentication_Summary_Template.clone() | ||
| $new_user["User"] = $targetUserName | ||
| $new_user[$key]++ | ||
| $Authentication_Summary[$eventType] += $new_user | ||
| } | ||
| } | ||
|
|
||
| function Create-SecurityAuthenticationSummary { | ||
| param([string] $UTCOffset, [string] $filePath) | ||
|
|
||
| Write-Host | ||
| Write-Host $Create_SecurityAuthenticationSummary_Welcome_Message | ||
| Write-Host | ||
|
|
||
| $WineventFilter = @{} | ||
| $EventIDsToAnalyze = @(4624, 4625) | ||
| $WineventFilter.Add("ID", $EventIDsToAnalyze) | ||
|
|
||
| if ( $StartTimeline -ne "" ) { | ||
| $StartTimeline = [DateTime]::ParseExact($StartTimeline, $DateFormat, $null) | ||
| $WineventFilter.Add( "StartTime" , $StartTimeline ) | ||
| } | ||
| if ( $EndTimeline -ne "" ) { | ||
| $EndTimeline = [DateTime]::ParseExact($EndTimeline, $DateFormat, $null) | ||
| $WineventFilter.Add( "EndTime" , $EndTimeline ) | ||
| } | ||
|
|
||
| $filesize = Format-FileSize( (get-item $filePath).length ) | ||
| $filesizeMB = (Get-Item $filePath).length / 1MB | ||
| $filesizeMB = $filesizeMB * 0.1 | ||
| $ApproxTimeInSeconds = $filesizeMB * 60 | ||
| $TempTimeSpan = New-TimeSpan -Seconds $ApproxTimeInSeconds | ||
| $RuntimeHours = $TempTimeSpan.Hours.ToString() | ||
| $RuntimeMinutes = $TempTimeSpan.Minutes.ToString() | ||
| $RuntimeSeconds = $TempTimeSpan.Seconds.ToString() | ||
|
|
||
| Write-Host ( $Create_LogonTimeline_Filename -f $filePath ) | ||
| Write-Host ( $Create_LogonTimeline_Filesize -f $filesize ) | ||
| Write-Host ( $Create_LogonTimeline_Estimated_Processing_Time -f $RuntimeHours, $RuntimeMinutes, $RuntimeSeconds ) # "Estimated processing time: {0} hours {1} minutes {2} seconds" | ||
| Write-Host "" | ||
| Write-Host $Create_LogonTimeline_LoadingEVTX | ||
| Write-Host $Create_LogonTimeline_PleaseWait | ||
| Write-Host "" | ||
|
|
||
| initialize_AuthenticationSummary | ||
|
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||
| $WineventFilter.Add( "Path", $filePath) | ||
| $logs = Get-WinEvent -FilterHashtable $WineventFilter -Oldest #Load event logs into memory. | ||
|
|
||
| If ( $logs.length -eq 0 ) { | ||
| Write-Host $Info_GetEventNoMatch -ForegroundColor Green | ||
| Write-Host | ||
| return | ||
| } | ||
|
|
||
| Write-Host $Create_LogonTimeline_AnalyzingLogs | ||
| Write-Host | ||
|
|
||
| foreach ( $event in $logs ) { | ||
| $eventXML = [xml]$event.ToXml() | ||
| $msgTargetUserName = ($eventXML.Event.EventData.Data | ? {$_.Name -eq "TargetUserName"}).'#text' | ||
| $msgLogonType = ($eventXML.Event.EventData.Data | ? {$_.Name -eq "LogonType"}).'#text' | ||
|
|
||
| #4624 | ||
| if ($event.id -eq "4624") { | ||
| $eventType = "Successful_Logons" | ||
| } | ||
|
|
||
| #4625 | ||
| if ($event.id -eq "4625") { | ||
| $msgFailedReason = ($eventXML.Event.EventData.Data | ? {$_.Name -eq "SubStatus"}).'#text' | ||
| If ( $msgFailedReason -eq "0xc0000064" ) { | ||
| $eventType = "BadUser_Failed_Logons" | ||
| } | ||
| elseif ( $msgFailedReason -eq "0xc000006a" ) { | ||
| $eventType = "BadPassword_Failed_Logons" | ||
| } | ||
| else { | ||
| $eventType = "UnknownReason_Failed_Logons" | ||
| } | ||
| } | ||
| If ( ([int]$msgLogonType -ge 0) -and ([int]$msgLogonType -le 13) ) { | ||
| $logonType = [int]$msgLogonType | ||
| } | ||
| else { | ||
| $logonType = "Unknown" | ||
| } | ||
| increment_eventCount -eventType $eventType -targetUserName $msgTargetUserName -logonType $logonType | ||
| } | ||
| $ProgramEndTime = Get-Date | ||
| $TotalRuntime = [math]::Round(($ProgramEndTime - $ProgramStartTime).TotalSeconds) | ||
| $TempTimeSpan = New-TimeSpan -Seconds $TotalRuntime | ||
| $RuntimeHours = $TempTimeSpan.Hours.ToString() | ||
| $RuntimeMinutes = $TempTimeSpan.Minutes.ToString() | ||
| $RuntimeSeconds = $TempTimeSpan.Seconds.ToString() | ||
|
|
||
| Write-Host | ||
| Write-Host ( $Create_LogonTimeline_Processing_Time -f $RuntimeHours , $RuntimeMinutes , $RuntimeSeconds ) # "Estimated processing time: {0} hours {1} minutes {2} seconds" | ||
| Write-Host "--------------------" | ||
|
|
||
| #Output | ||
| foreach ($eventType in $Authentication_EventTypes){ | ||
| Write-Host ([string]::Format("# {0}:",$eventType)) | ||
| If ( $Authentication_Summary[$eventType].Length -eq 0 ) { | ||
| Write-Host $Create_SecurityAuthenticationSummary_NoMatch_Message | ||
| Write-Host | ||
| } | ||
| else { | ||
| $OutputView = $Authentication_Summary[$eventType] | % { New-Object PSCustomObject -Property $_ } | ||
| $OutputView | Format-Table $Headers | ||
| if ( $OutputCSV -eq $true ) { | ||
| $csv_filename = [string]::Format("{0}_{1}.csv", (Split-Path $filePath -Leaf), $eventType) | ||
| $OutputView | Select-Object -Property $Headers | Export-Csv -path $csv_filename -Encoding Default | ||
| Write-Host ( $Create_SecurityAuthenticationSummary_OutputCSV_Message -f $csv_filename ) | ||
| Write-Host | ||
| } | ||
|
|
||
| if ( $OutputGUI -eq $true ) { | ||
| $OutputView | Select-Object -Property $Headers | Out-GridView -title $eventType | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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