Scripts/Get-AzureADGraphLogs.ps1
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function Get-GraphEntraSignInLogs { <# .SYNOPSIS Gets of sign-ins logs. .DESCRIPTION The Get-GraphEntraSignInLogs GraphAPI cmdlet collects the contents of the Azure Active Directory sign-in logs. .PARAMETER startDate The startDate parameter specifies the date from which all logs need to be collected. .PARAMETER endDate The Before parameter specifies the date endDate which all logs need to be collected. .PARAMETER MergeOutput MergeOutput is the parameter specifying if you wish to merge outputs to a single file Default: No .PARAMETER Output Output is the parameter specifying the JSON or SOF-ELK output type. The SOF-ELK output can be imported into the platform of the same name. Default: JSON .PARAMETER LogLevel Specifies the level of logging: None: No logging Minimal: Critical errors only Standard: Normal operational logging Default: Standard .PARAMETER OutputDir outputDir is the parameter specifying the output directory. Default: The output will be written to: Output\EntraID\{date_SignInLogs}\SignInLogs.json .PARAMETER Encoding Encoding is the parameter specifying the encoding of the JSON output file. Default: UTF8 .PARAMETER UserIds UserIds is the UserIds parameter filtering the log entries by the account of the user who performed the actions. .EXAMPLE Get-GraphEntraSignInLogs Get all audit logs of sign-ins. .EXAMPLE Get-GraphEntraSignInLogs -Application Get all audit logs of sign-ins via application authentication. .EXAMPLE Get-GraphEntraSignInLogs -endDate 2024-04-12 Get audit logs before 2024-04-12. .EXAMPLE Get-GraphEntraSignInLogs -startDate 2024-04-12 Get audit logs after 2024-04-12. .EXAMPLE Get-GraphEntraSignInLogs -Output SOF-ELK -MergeOutput Get the Azure Active Directory SignIn Log in a format compatible with the SOF-ELK platform and merge all data into a single file. #> [CmdletBinding()] param( [string]$startDate, [string]$endDate, [string]$Output = "JSON", [string]$OutputDir, [string]$UserIds, [switch]$MergeOutput, [string]$Encoding = "UTF8", [ValidateSet('None', 'Minimal', 'Standard')] [string]$LogLevel = 'Standard' ) Set-LogLevel -Level ([LogLevel]::$LogLevel) $summary = @{ TotalRecords = 0 StartTime = Get-Date ProcessingTime = $null TotalFiles = 0 } Write-LogFile -Message "=== Starting Sign-in Log Collection ===" -Color "Cyan" -Level Minimal $requiredScopes = @("AuditLog.Read.All", "Directory.Read.All") $graphAuth = Get-GraphAuthType -RequiredScopes $RequiredScopes $date = [datetime]::Now.ToString('yyyyMMdd') if ($OutputDir -eq "" ){ $OutputDir = "Output\EntraID\$($date)-SignInLogs" if (!(test-path $OutputDir)) { New-Item -ItemType Directory -Force -path $OutputDir > $null } } else { if (!(Test-Path -Path $OutputDir)) { Write-LogFile -Message "[Error] Custom directory invalid: $OutputDir" -Level Minimal -Color "Red" return } } StartDateAz -Quiet EndDate -Quiet $StartDate = $script:StartDate.ToString('yyyy-MM-ddTHH:mm:ssZ') $EndDate = $script:EndDate.ToString('yyyy-MM-ddTHH:mm:ssZ') Write-LogFile -Message "Start Date: $StartDate" -Level Standard Write-LogFile -Message "End Date: $EndDate" -Level Standard Write-LogFile -Message "Output Format: $Output" -Level Standard Write-LogFile -Message "Output Directory: $OutputDir" -Level Standard if ($UserIds) { Write-LogFile -Message "Filtering for User: $UserIds" -Level Standard } Write-LogFile -Message "----------------------------------------`n" -Level Standard $filterQuery = "createdDateTime ge $StartDate and createdDateTime le $EndDate" if ($UserIds) { $filterQuery += " and startsWith(userPrincipalName, '$UserIds')" } $encodedFilterQuery = [System.Web.HttpUtility]::UrlEncode($filterQuery) $apiUrl = "https://graph.microsoft.com/beta/auditLogs/signIns?`$filter=$encodedFilterQuery" try { Do { $retryCount = 0 $maxRetries = 3 $success = $false while (-not $success -and $retryCount -lt $maxRetries) { try { $response = Invoke-MgGraphRequest -Uri $apiUrl -Method Get -ContentType "application/json; odata.metadata=minimal; odata.streaming=true;" -OutputType Json $responseJson = $response | ConvertFrom-Json $success = $true } catch { $retryCount++ if ($retryCount -lt $maxRetries) { Write-LogFile -Message "[WARNING] Failed to acquire logs. Retrying... Attempt $retryCount of $maxRetries" -Level Standard -Color "Yellow" Start-Sleep -Seconds 15 } else { Write-LogFile -Message "[ERROR] Failed to acquire logs after $maxRetries attempts. Error: $($_.Exception.Message)" -Level Minimal -Color "Red" throw } } } if ($responseJson.value) { $date = [datetime]::Now.ToString('yyyyMMddHHmmss') $filePath = Join-Path -Path $OutputDir -ChildPath "$($date)-SignInLogs.json" if ($Output -eq "JSON" ) { $responseJson.value | ConvertTo-Json -Depth 100 | Out-File -FilePath $filePath -Append -Encoding $Encoding } elseif ($Output -eq "SOF-ELK"){ # UTF8 is fixed, as it is required by SOF-ELK foreach ($item in $responseJson.value) { $item | ConvertTo-Json -Depth 100 -Compress | Out-File -FilePath $filePath -Append -Encoding UTF8 } } $currentBatchCount = ($responseJson.value | Measure-Object).Count $summary.TotalRecords += $currentBatchCount $summary.TotalFiles++ $dates = $responseJson.value | ForEach-Object { [DateTime]::Parse($_.CreatedDateTime, [System.Globalization.CultureInfo]::InvariantCulture) } | Sort-Object $from = $dates | Select-Object -First 1 $to = ($dates | Select-Object -Last 1) Write-LogFile -Message "[INFO] Retrieved $currentBatchCount records between $from and $to" -Level Standard -Color "Green" } $apiUrl = $responseJson.'@odata.nextLink' } While ($apiUrl) if ($Output -eq "JSON" -and ($MergeOutput.IsPresent)) { Write-LogFile -Message "[INFO] Merging output files into one file" Merge-OutputFiles -OutputDir $OutputDir -OutputType "JSON" -MergedFileName "SignInLogs-Combined.json" } elseif ($Output -eq "SOF-ELK" -and ($MergeOutput.IsPresent)) { Write-LogFile -Message "[INFO] Merging output files into one file" Merge-OutputFiles -OutputDir $OutputDir -OutputType "SOF-ELK" -MergedFileName "SignInLogs-Combined.json" } $summary.ProcessingTime = (Get-Date) - $summary.StartTime Write-LogFile -Message "`nCollection Summary:" -Color "Cyan" -Level Standard Write-LogFile -Message " Total Records: $($summary.TotalRecords)" -Level Standard Write-LogFile -Message " Files Created: $($summary.TotalFiles)" -Level Standard Write-LogFile -Message " Output Directory: $OutputDir" -Level Standard Write-LogFile -Message " Processing Time: $($summary.ProcessingTime.ToString('mm\:ss'))" -Level Standard -Color "Green" } catch { Write-LogFile -Message "[ERROR] An error occurred: $($_.Exception.Message)" -Level Minimal -Color "Red" throw } } function Get-GraphEntraAuditLogs { <# .SYNOPSIS Get directory audit logs. .DESCRIPTION The Get-GraphEntraAuditLogs GraphAPI cmdlet to collect the contents of the Azure Active Directory Audit logs. .PARAMETER startDate The startDate parameter specifies the date from which all logs need to be collected. .PARAMETER endDate The Before parameter specifies the date endDate which all logs need to be collected. .PARAMETER OutputDir outputDir is the parameter specifying the output directory. Default: The output will be written to: "Output\EntraID\{date_AuditLogs}\Auditlogs.json .PARAMETER UserIds UserIds is the UserIds parameter filtering the log entries by the account of the user who performed the actions. .PARAMETER All When specified along with UserIds, this parameter filters the results to include events where the provided UserIds match any user principal name found in either the userPrincipalNames or targetResources fields. .PARAMETER Encoding Encoding is the parameter specifying the encoding of the JSON output file. Default: UTF8 .PARAMETER MergeOutput MergeOutput is the parameter specifying if you wish to merge outputs to a single file Default: No .PARAMETER Output Output is the parameter specifying the JSON or SOF-ELK output type. The SOF-ELK output can be imported into the platform of the same name. Default: JSON .EXAMPLE Get-GraphEntraAuditLogs Get directory audit logs. .EXAMPLE Get-GraphEntraAuditLogs -Application Get directory audit logs via application authentication. .PARAMETER LogLevel Specifies the level of logging: None: No logging Minimal: Critical errors only Standard: Normal operational logging Default: Standard .EXAMPLE Get-GraphEntraAuditLogs -UserIds 'user@example.com' -All Get sign-in logs for 'user@example.com', including both userPrincipalName and targetResources in the filter. .EXAMPLE Get-GraphEntraAuditLogs -Before 2024-04-12 Get directory audit logs before 2024-04-12. .EXAMPLE Get-GraphEntraAuditLogs -After 2024-04-12 Get directory audit logs after 2024-04-12. #> [CmdletBinding()] param( [string]$startDate, [string]$endDate, [string]$OutputDir, [string]$Output = "JSON", [string]$Encoding = "UTF8", [switch]$MergeOutput, [string]$UserIds, [switch]$All, [ValidateSet('None', 'Minimal', 'Standard')] [string]$LogLevel = 'Standard' ) Set-LogLevel -Level ([LogLevel]::$LogLevel) $summary = @{ TotalRecords = 0 StartTime = Get-Date ProcessingTime = $null TotalFiles = 0 } Write-LogFile -Message "=== Starting Sign-in Log Collection ===" -Color "Cyan" -Level Minimal $requiredScopes = @("AuditLog.Read.All", "Directory.Read.All") $graphAuth = Get-GraphAuthType -RequiredScopes $RequiredScopes $date = [datetime]::Now.ToString('yyyyMMdd') if ($OutputDir -eq "" ){ $OutputDir = "Output\EntraID\$($date)-Auditlogs" if (!(test-path $OutputDir)) { New-Item -ItemType Directory -Force -Name $OutputDir > $null write-logFile -Message "[INFO] Creating the following directory: $OutputDir" } } else { if (!(Test-Path -Path $OutputDir)) { Write-LogFile -Message "[Error] Custom directory invalid: $OutputDir" -Level Minimal -Color "Red" return } } StartDateAz -Quiet EndDate -Quiet $StartDate = $script:StartDate.ToString('yyyy-MM-ddTHH:mm:ssZ') $EndDate = $script:EndDate.ToString('yyyy-MM-ddTHH:mm:ssZ') Write-LogFile -Message "Start Date: $StartDate" -Level Standard Write-LogFile -Message "End Date: $EndDate" -Level Standard Write-LogFile -Message "Output Format: $Output" -Level Standard Write-LogFile -Message "Output Directory: $OutputDir" -Level Standard if ($UserIds) { Write-LogFile -Message "Filtering for User: $UserIds" -Level Standard } Write-LogFile -Message "----------------------------------------`n" -Level Standard $filterQuery = "activityDateTime ge $StartDate and activityDateTime le $EndDate" if ($UserIds) { $filterQuery += " and startsWith(initiatedBy/user/userPrincipalName, '$UserIds')" if ($All.IsPresent) { $filterQuery = "($filterQuery) or (targetResources/any(tr: tr/userPrincipalName eq '$UserIds'))" } } else { if ($All.IsPresent) { Write-LogFile -Message "[WARNING] '-All' switch has no effect without specifying UserIds" } } $encodedFilterQuery = [System.Web.HttpUtility]::UrlEncode($filterQuery) $apiUrl = "https://graph.microsoft.com/v1.0/auditLogs/directoryAudits?`$filter=$encodedFilterQuery" try { Do { $retryCount = 0 $maxRetries = 3 $success = $false while (-not $success -and $retryCount -lt $maxRetries) { try { $response = Invoke-MgGraphRequest -Uri $apiUrl -Method Get -ContentType "application/json; odata.metadata=minimal; odata.streaming=true;" -OutputType Json $responseJson = $response | ConvertFrom-Json $success = $true } catch { $retryCount++ if ($retryCount -lt $maxRetries) { Write-LogFile -Message "[WARNING] Failed to acquire logs. Retrying... Attempt $retryCount of $maxRetries" -Level Standard -Color "Yellow" Start-Sleep -Seconds 15 } else { Write-LogFile -Message "[ERROR] Failed to acquire logs after $maxRetries attempts. Error: $($_.Exception.Message)" -Level Minimal -Color "Red" throw } } } if ($responseJson.value) { $date = [datetime]::Now.ToString('yyyyMMddHHmmss') $filePath = Join-Path -Path $OutputDir -ChildPath "$($date)-AuditLogs.json" if ($Output -eq "JSON") { $responseJson.value | ConvertTo-Json -Depth 100 | Out-File -FilePath $filePath -Append -Encoding $Encoding } elseif ($Output -eq "SOF-ELK") { # UTF8 is fixed, as it is required by SOF-ELK foreach ($item in $responseJson.value) { $item | ConvertTo-Json -Depth 100 -Compress | Out-File -FilePath $filePath -Append -Encoding UTF8 } } $currentBatchCount = ($responseJson.value | Measure-Object).Count $summary.TotalRecords += $currentBatchCount $summary.TotalFiles++ $dates = $responseJson.value | ForEach-Object { [DateTime]::Parse($_.activityDateTime, [System.Globalization.CultureInfo]::InvariantCulture) } | Sort-Object $from = $dates | Select-Object -First 1 $fromstr = $from.ToString('yyyy-MM-ddTHH:mmZ') $to = ($dates | Select-Object -Last 1).ToString('yyyy-MM-ddTHH:mmZ') Write-LogFile -Message "[INFO] Retrieved $currentBatchCount records between $fromstr and $to" -Level Standard -Color "Green" } $apiUrl = $responseJson.'@odata.nextLink' } While ($apiUrl) if ($Output -eq "JSON" -and ($MergeOutput.IsPresent)) { Merge-OutputFiles -OutputDir $OutputDir -OutputType "JSON" -MergedFileName "AuditLogs-Combined.json" } elseif ($Output -eq "SOF-ELK" -and ($MergeOutput.IsPresent)) { Merge-OutputFiles -OutputDir $OutputDir -OutputType "SOF-ELK" -MergedFileName "AuditLogs-Combined.json" } $summary.ProcessingTime = (Get-Date) - $summary.StartTime Write-LogFile -Message "`nCollection Summary:" -Color "Cyan" -Level Standard Write-LogFile -Message " Total Records: $($summary.TotalRecords)" -Level Standard Write-LogFile -Message " Files Created: $($summary.TotalFiles)" -Level Standard Write-LogFile -Message " Output Directory: $OutputDir" -Level Standard Write-LogFile -Message " Processing Time: $($summary.ProcessingTime.ToString('mm\:ss'))" -Level Standard -Color "Green" } catch { Write-logFile -Message "[ERROR] An error occurred: $($_.Exception.Message)" -Color "Red" -Level Minimal throw } } |