This commit is contained in:
2025-10-13 12:39:46 +02:00
parent be8555316f
commit f7b83e14a5
4 changed files with 385 additions and 32 deletions

View File

@@ -12,7 +12,7 @@
##################################################
<#
#Requires -Modules DSInternals, Az.Storage
#Requires -Modules DSInternals
.SYNOPSIS
Script for extracting NTLM hashes from live AD for further analysis.
@@ -66,11 +66,164 @@ function Normalize-ReportPath([string]$p) {
return (Join-Path -Path $scriptRoot -ChildPath $p)
}
# External settings
# Storage provider selection (Azure by default)
$storageProvider = $ElysiumSettings['StorageProvider']
if ([string]::IsNullOrWhiteSpace($storageProvider)) { $storageProvider = 'Azure' }
# Azure settings
$storageAccountName = $ElysiumSettings['storageAccountName']
$containerName = $ElysiumSettings['containerName']
$sasToken = $ElysiumSettings['sasToken']
# S3-compatible settings
$s3EndpointUrl = $ElysiumSettings['s3EndpointUrl']
$s3Region = $ElysiumSettings['s3Region']
$s3BucketName = $ElysiumSettings['s3BucketName']
$s3AccessKeyId = $ElysiumSettings['s3AccessKeyId']
$s3SecretAccessKey = $ElysiumSettings['s3SecretAccessKey']
$s3ForcePathStyle = $ElysiumSettings['s3ForcePathStyle']
$s3UseAwsTools = $ElysiumSettings['s3UseAwsTools']
if ([string]::IsNullOrWhiteSpace($s3Region)) { $s3Region = 'us-east-1' }
try { $s3ForcePathStyle = [System.Convert]::ToBoolean($s3ForcePathStyle) } catch { $s3ForcePathStyle = $true }
try { $s3UseAwsTools = [System.Convert]::ToBoolean($s3UseAwsTools) } catch { $s3UseAwsTools = $false }
function Ensure-AWSS3Module {
# Ensure AWS SDK types are available via AWS Tools for PowerShell
try {
$null = [Amazon.S3.AmazonS3Client]
return
} catch {
try { Import-Module -Name AWS.Tools.S3 -ErrorAction Stop; return } catch {}
try { Import-Module -Name AWSPowerShell.NetCore -ErrorAction Stop; return } catch {}
throw "AWS Tools for PowerShell not found. Install with: Install-Module AWS.Tools.S3 -Scope CurrentUser"
}
}
function New-S3Client {
param(
[string]$EndpointUrl,
[string]$Region,
[string]$AccessKeyId,
[string]$SecretAccessKey,
[bool]$ForcePathStyle = $true
)
Ensure-AWSS3Module
$creds = New-Object Amazon.Runtime.BasicAWSCredentials($AccessKeyId, $SecretAccessKey)
$cfg = New-Object Amazon.S3.AmazonS3Config
if ($EndpointUrl) { $cfg.ServiceURL = $EndpointUrl }
if ($Region) {
try { $cfg.RegionEndpoint = [Amazon.RegionEndpoint]::GetBySystemName($Region) } catch {}
}
$cfg.ForcePathStyle = [bool]$ForcePathStyle
return (New-Object Amazon.S3.AmazonS3Client($creds, $cfg))
}
# Native S3 SigV4 (no AWS Tools) helpers
function Get-Bytes([string]$s) { return [System.Text.Encoding]::UTF8.GetBytes($s) }
function Get-HashHex([byte[]]$bytes) {
$sha = [System.Security.Cryptography.SHA256]::Create()
try { return ([BitConverter]::ToString($sha.ComputeHash($bytes))).Replace('-', '').ToLowerInvariant() } finally { $sha.Dispose() }
}
function Get-FileSha256Hex([string]$path) {
$sha = [System.Security.Cryptography.SHA256]::Create()
$fs = [System.IO.File]::OpenRead($path)
try { return ([BitConverter]::ToString($sha.ComputeHash($fs))).Replace('-', '').ToLowerInvariant() } finally { $fs.Close(); $sha.Dispose() }
}
function HmacSha256([byte[]]$key, [string]$data) {
$h = [System.Security.Cryptography.HMACSHA256]::new($key)
try { return $h.ComputeHash((Get-Bytes $data)) } finally { $h.Dispose() }
}
function GetSignatureKey([string]$secret, [string]$dateStamp, [string]$regionName, [string]$serviceName) {
$kDate = HmacSha256 (Get-Bytes ('AWS4' + $secret)) $dateStamp
$kRegion = HmacSha256 $kDate $regionName
$kService = HmacSha256 $kRegion $serviceName
return (HmacSha256 $kService 'aws4_request')
}
function UriEncode([string]$data, [bool]$encodeSlash) {
if ($null -eq $data) { return '' }
$enc = [System.Uri]::EscapeDataString($data)
if (-not $encodeSlash) { $enc = $enc -replace '%2F','/' }
return $enc
}
function BuildCanonicalPath([System.Uri]$uri) {
$segments = $uri.AbsolutePath.Split('/')
$encoded = @()
foreach ($seg in $segments) { $encoded += (UriEncode $seg $false) }
$path = ($encoded -join '/')
if (-not $path.StartsWith('/')) { $path = '/' + $path }
return $path
}
function ToHex([byte[]]$bytes) { return ([BitConverter]::ToString($bytes)).Replace('-', '').ToLowerInvariant() }
function BuildAuthHeaders($method, [System.Uri]$uri, [string]$region, [string]$accessKey, [string]$secretKey, [string]$payloadHash) {
$algorithm = 'AWS4-HMAC-SHA256'
$amzdate = (Get-Date).ToUniversalTime().ToString('yyyyMMddTHHmmssZ')
$datestamp = (Get-Date).ToUniversalTime().ToString('yyyyMMdd')
$hostHeader = $uri.Host
if (-not $uri.IsDefaultPort) { $hostHeader = "$hostHeader:$($uri.Port)" }
$canonicalUri = BuildCanonicalPath $uri
$canonicalQueryString = ''
$canonicalHeaders = "host:$hostHeader`n" + "x-amz-content-sha256:$payloadHash`n" + "x-amz-date:$amzdate`n"
$signedHeaders = 'host;x-amz-content-sha256;x-amz-date'
$canonicalRequest = "$method`n$canonicalUri`n$canonicalQueryString`n$canonicalHeaders`n$signedHeaders`n$payloadHash"
$credentialScope = "$datestamp/$region/s3/aws4_request"
$stringToSign = "$algorithm`n$amzdate`n$credentialScope`n$((Get-HashHex (Get-Bytes $canonicalRequest)))"
$signingKey = GetSignatureKey $secretKey $datestamp $region 's3'
$signature = ToHex (HmacSha256 $signingKey $stringToSign)
$authHeader = "$algorithm Credential=$accessKey/$credentialScope, SignedHeaders=$signedHeaders, Signature=$signature"
return @{ 'x-amz-date' = $amzdate; 'x-amz-content-sha256' = $payloadHash; 'Authorization' = $authHeader }
}
function BuildS3Uri([string]$endpointUrl, [string]$bucket, [string]$key, [bool]$forcePathStyle) {
$base = [System.Uri]$endpointUrl
$ub = [System.UriBuilder]::new($base)
if ($forcePathStyle) {
$p = ($ub.Path.TrimEnd('/'))
if ([string]::IsNullOrEmpty($p)) { $p = '/' }
$ub.Path = ($p.TrimEnd('/') + '/' + $bucket + '/' + $key)
} else {
$ub.Host = "$bucket." + $ub.Host
$p = $ub.Path.TrimEnd('/')
if ([string]::IsNullOrEmpty($p)) { $p = '/' }
$ub.Path = ($p.TrimEnd('/') + '/' + $key)
}
return $ub.Uri
}
function Invoke-S3PutFile([string]$endpointUrl, [string]$bucket, [string]$key, [string]$filePath, [string]$region, [string]$ak, [string]$sk, [bool]$forcePathStyle) {
$uri = BuildS3Uri -endpointUrl $endpointUrl -bucket $bucket -key $key -forcePathStyle $forcePathStyle
$payloadHash = Get-FileSha256Hex -path $filePath
Add-Type -AssemblyName System.Net.Http -ErrorAction SilentlyContinue
$client = [System.Net.Http.HttpClient]::new()
try {
$req = [System.Net.Http.HttpRequestMessage]::new([System.Net.Http.HttpMethod]::Put, $uri)
$stream = [System.IO.File]::OpenRead($filePath)
$req.Content = [System.Net.Http.StreamContent]::new($stream)
$hdrs = BuildAuthHeaders -method 'PUT' -uri $uri -region $region -accessKey $ak -secretKey $sk -payloadHash $payloadHash
$req.Headers.TryAddWithoutValidation('x-amz-date', $hdrs['x-amz-date']) | Out-Null
$req.Headers.TryAddWithoutValidation('Authorization', $hdrs['Authorization']) | Out-Null
$req.Headers.TryAddWithoutValidation('x-amz-content-sha256', $hdrs['x-amz-content-sha256']) | Out-Null
$resp = $client.SendAsync($req).Result
if (-not $resp.IsSuccessStatusCode) { throw "S3 PUT failed: $([int]$resp.StatusCode) $($resp.ReasonPhrase)" }
} finally { if ($req) { $req.Dispose() }; if ($stream) { $stream.Close(); $stream.Dispose() }; $client.Dispose() }
}
function Invoke-S3GetToFile([string]$endpointUrl, [string]$bucket, [string]$key, [string]$targetPath, [string]$region, [string]$ak, [string]$sk, [bool]$forcePathStyle) {
$uri = BuildS3Uri -endpointUrl $endpointUrl -bucket $bucket -key $key -forcePathStyle $forcePathStyle
$payloadHash = (Get-HashHex (Get-Bytes ''))
Add-Type -AssemblyName System.Net.Http -ErrorAction SilentlyContinue
$client = [System.Net.Http.HttpClient]::new()
try {
$req = [System.Net.Http.HttpRequestMessage]::new([System.Net.Http.HttpMethod]::Get, $uri)
$hdrs = BuildAuthHeaders -method 'GET' -uri $uri -region $region -accessKey $ak -secretKey $sk -payloadHash $payloadHash
$req.Headers.TryAddWithoutValidation('x-amz-date', $hdrs['x-amz-date']) | Out-Null
$req.Headers.TryAddWithoutValidation('Authorization', $hdrs['Authorization']) | Out-Null
$req.Headers.TryAddWithoutValidation('x-amz-content-sha256', $hdrs['x-amz-content-sha256']) | Out-Null
$resp = $client.SendAsync($req).Result
if (-not $resp.IsSuccessStatusCode) { throw "S3 GET failed: $([int]$resp.StatusCode) $($resp.ReasonPhrase)" }
$bytes = $resp.Content.ReadAsByteArrayAsync().Result
[System.IO.File]::WriteAllBytes($targetPath, $bytes)
} finally { if ($req) { $req.Dispose() }; $client.Dispose() }
}
# Retrieve the passphrase from a user environment variable
$passphrase = [System.Environment]::GetEnvironmentVariable("ELYSIUM_PASSPHRASE", [System.EnvironmentVariableTarget]::User)
if ([string]::IsNullOrWhiteSpace($passphrase)) { Write-Error 'Passphrase not found in ELYSIUM_PASSPHRASE environment variable.'; exit }
@@ -206,33 +359,75 @@ Write-Host "File has been encrypted: $encryptedFilePath"
# Calculate the local file checksum
$localFileChecksum = Get-FileChecksum -Path $encryptedFilePath
# Create the context for Azure Blob Storage with SAS token
$sas = $sasToken
if ([string]::IsNullOrWhiteSpace($sas)) { Write-Error 'sasToken is missing in settings.'; exit }
$sas = $sas.Trim(); if (-not $sas.StartsWith('?')) { $sas = '?' + $sas }
$storageContext = New-AzStorageContext -StorageAccountName $storageAccountName -SasToken $sas
if ($storageProvider -ieq 'S3') {
# S3-compatible path (e.g., IDrive e2) without requiring AWS Tools
if ([string]::IsNullOrWhiteSpace($s3BucketName)) { Write-Error 's3BucketName is missing in settings.'; exit }
if ([string]::IsNullOrWhiteSpace($s3AccessKeyId) -or [string]::IsNullOrWhiteSpace($s3SecretAccessKey)) { Write-Error 's3AccessKeyId / s3SecretAccessKey missing in settings.'; exit }
if ([string]::IsNullOrWhiteSpace($s3EndpointUrl)) { Write-Error 's3EndpointUrl is required for S3-compatible storage.'; exit }
# Ensure container exists
$container = Get-AzStorageContainer -Name $containerName -Context $storageContext -ErrorAction SilentlyContinue
if (-not $container) { Write-Error "Azure container '$containerName' not found or access denied."; exit }
$usedAwsTools = $false
if ($s3UseAwsTools) {
try {
$s3Client = New-S3Client -EndpointUrl $s3EndpointUrl -Region $s3Region -AccessKeyId $s3AccessKeyId -SecretAccessKey $s3SecretAccessKey -ForcePathStyle:$s3ForcePathStyle
# Upload
$putReq = New-Object Amazon.S3.Model.PutObjectRequest -Property @{ BucketName = $s3BucketName; Key = $blobName; FilePath = $encryptedFilePath }
$null = $s3Client.PutObject($putReq)
Write-Host "Encrypted file uploaded to S3-compatible bucket (AWS Tools): $blobName"
$tempDownloadPath = [System.IO.Path]::GetTempFileName()
$getReq = New-Object Amazon.S3.Model.GetObjectRequest -Property @{ BucketName = $s3BucketName; Key = $blobName }
$getResp = $s3Client.GetObject($getReq)
$getResp.WriteResponseStreamToFile($tempDownloadPath, $true)
$getResp.Dispose()
$downloadedFileChecksum = Get-FileChecksum -Path $tempDownloadPath
$usedAwsTools = $true
} catch {
Write-Warning "AWS Tools path failed or not available. Falling back to native HTTP (SigV4). Details: $($_.Exception.Message)"
$usedAwsTools = $false
}
}
# Upload the encrypted file to Azure Blob Storage
Set-AzStorageBlobContent -File $encryptedFilePath -Container $containerName -Blob $blobName -Context $storageContext | Out-Null
Write-Host "Encrypted file uploaded to Azure Blob Storage: $blobName"
if (-not $usedAwsTools) {
Invoke-S3PutFile -endpointUrl $s3EndpointUrl -bucket $s3BucketName -key $blobName -filePath $encryptedFilePath -region $s3Region -ak $s3AccessKeyId -sk $s3SecretAccessKey -forcePathStyle:$s3ForcePathStyle
Write-Host "Encrypted file uploaded to S3-compatible bucket: $blobName"
$tempDownloadPath = [System.IO.Path]::GetTempFileName()
Invoke-S3GetToFile -endpointUrl $s3EndpointUrl -bucket $s3BucketName -key $blobName -targetPath $tempDownloadPath -region $s3Region -ak $s3AccessKeyId -sk $s3SecretAccessKey -forcePathStyle:$s3ForcePathStyle
$downloadedFileChecksum = Get-FileChecksum -Path $tempDownloadPath
}
}
else {
# Azure Blob Storage path (default)
$sas = $sasToken
if ([string]::IsNullOrWhiteSpace($sas)) { Write-Error 'sasToken is missing in settings.'; exit }
$sas = $sas.Trim(); if (-not $sas.StartsWith('?')) { $sas = '?' + $sas }
try { Import-Module Az.Storage -ErrorAction Stop } catch {}
$storageContext = New-AzStorageContext -StorageAccountName $storageAccountName -SasToken $sas
# Download the blob to a temporary location to verify
$tempDownloadPath = [System.IO.Path]::GetTempFileName()
Get-AzStorageBlobContent -Blob $blobName -Container $containerName -Context $storageContext -Destination $tempDownloadPath -Force | Out-Null
# Ensure container exists
$container = Get-AzStorageContainer -Name $containerName -Context $storageContext -ErrorAction SilentlyContinue
if (-not $container) { Write-Error "Azure container '$containerName' not found or access denied."; exit }
# Calculate the downloaded file checksum
$downloadedFileChecksum = Get-FileChecksum -Path $tempDownloadPath
# Upload the encrypted file to Azure Blob Storage
Set-AzStorageBlobContent -File $encryptedFilePath -Container $containerName -Blob $blobName -Context $storageContext | Out-Null
Write-Host "Encrypted file uploaded to Azure Blob Storage: $blobName"
# Download the blob to a temporary location to verify
$tempDownloadPath = [System.IO.Path]::GetTempFileName()
Get-AzStorageBlobContent -Blob $blobName -Container $containerName -Context $storageContext -Destination $tempDownloadPath -Force | Out-Null
# Calculate the downloaded file checksum
$downloadedFileChecksum = Get-FileChecksum -Path $tempDownloadPath
}
# Compare the checksums
if ($localFileChecksum -eq $downloadedFileChecksum) {
Write-Host "The file was correctly uploaded. Checksum verified."
# Clean up local and temporary files only on success
Remove-Item -Path $exportPath, $compressedFilePath, $encryptedFilePath, $tempDownloadPath -Force
Write-Host "Local and temporary files cleaned up after uploading to Azure Blob Storage."
if ($storageProvider -ieq 'S3') {
Write-Host "Local and temporary files cleaned up after uploading to S3-compatible storage."
} else {
Write-Host "Local and temporary files cleaned up after uploading to Azure Blob Storage."
}
}
else {
Write-Warning "Checksum verification failed. Keeping local artifacts for investigation: $exportPath, $compressedFilePath, $encryptedFilePath"