07-02-2024, 04:36 AM
This is a PowerShell script that extracts and displays Microsoft Defender configuration and logs, including excluded paths, enabled ASR rules, allowed threats, protection history, and Exploit Guard protection history.
Use it with your loader to better choose which file to load
Use it with your loader to better choose which file to load
function Invoke-DumpDefenderConfig {
param (
[switch]$TableOutput,
[string]$TableOutputFile = "MDEConfig.txt",
[switch]$CSVOutput
)
Write-Host "[+] Dumping Defender Excluded Paths"
Query-ExclusionPaths -TableOutput:$TableOutput -TableOutputFile:$TableOutputFile -CSVOutput:$CSVOutput
Write-Host "[+] Dumping Enabled ASR Rules"
Query-RegASRRules -TableOutput:$TableOutput -TableOutputFile:$TableOutputFile -CSVOutput:$CSVOutput
Write-Host "[+] Dumping Allowed Threats"
Query-AllowedThreats -TableOutput:$TableOutput -TableOutputFile:$TableOutputFile -CSVOutput:$CSVOutput
Write-Host "[+] Dumping Defender Protection History"
Query-ProtectionHistory -TableOutput:$TableOutput -TableOutputFile:$TableOutputFile -CSVOutput:$CSVOutput
Write-Host "[+] Dumping Exploit Guard Protection History"
Query-ExploitGuardProtectionHistory -TableOutput:$TableOutput -TableOutputFile:$TableOutputFile -CSVOutput:$CSVOutput
Write-Host "[+] Dumping Windows Firewall Exclusions"
Query-FirewallExclusions -TableOutput:$TableOutput -TableOutputFile:$TableOutputFile -CSVOutput:$CSVOutput
if ($TableOutput) {
Write-Host "[+] Defender Config Dumped to $TableOutputFile"
}
}
function Get-ASRRuleDescriptions {
return @{
"56a863a9-875e-4185-98a7-b882c64b5ce5" = "Block Exploit of Vulnerable Signed Drivers"
"7674ba52-37eb-4a4f-a9a1-f0f9a1619a2c" = "Prevent Adobe Reader from creating child processes"
"d4f940ab-401b-4efc-aadc-ad5f3c50688a" = "Prevent all Office applications from creating child processes"
"9e6c4e1f-7d60-472f-ba1a-a39ef669e4b2" = "Block stealing credentials from the Windows Local Security Authority (lsass.exe) Subsystem"
"be9ba2d9-53ea-4cdc-84e5-9b1eeee46550" = "Block executable content from email client and webmail"
"01443614-cd74-433a-b99e-2ecdc07bfc25" = "Block executable files unless they meet a prevalence, age, or trusted list criterion"
"5beb7efe-fd9a-4556-801d-275e5ffc04cc" = "Block execution of potentially hidden scripts"
"d3e037e1-3eb8-44c8-a917-57927947596d" = "Block JavaScript or VBScript from launching downloaded executable content"
"3b576869-a4ec-4529-8536-b80a7769e899" = "Block Office applications from creating executable content"
"75668c1f-73b5-4cf0-bb93-3ecf5cb7cc84" = "Prevent Office applications from injecting code into other processes"
"26190899-1602-49e8-8b27-eb1d0a1ce869" = "Block Office Communication Application from Creating Child Processes"
"e6db77e5-3df2-4cf1-b95a-636979351e5b" = "Block persistence via WMI event subscription"
"d1e49aac-8f56-4280-b9ba-993a6d77406c" = "Block Process Creations from PSExec and WMI Commands"
"33ddedf1-c6e0-47cb-833e-de6133960387" = "Block computer restarting in safe mode (preview)"
"b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4" = "Block untrusted and unsigned processes running from USB"
"c0033c00-d16d-4114-a5a0-dc9b3a7d2ceb" = "Block the use of copied or imitated system utilities (preview)"
"a8f5898e-1dc8-49a9-9878-85004b8a61e6" = "Block the creation of web shells for servers"
"92e97fa1-2edf-4476-bdd6-9dd0b4dddc7b" = "Block Win32 API Calls from Office Macros"
"c1db55ab-c21a-4637-bb3f-a12568109d35" = "How to use advanced ransomware protection"
}
}
function Query-ExclusionPaths {
param (
[switch]$TableOutput,
[string]$TableOutputFile,
[switch]$CSVOutput
)
try {
$logName = "Microsoft-Windows-Windows Defender/Operational"
$query = "*[System[Provider[@Name='Microsoft-Windows-Windows Defender'] and (EventID=5007)]]"
$events = Get-WinEvent -LogName $logName -FilterXPath $query
$exclusionPaths = foreach ($event in $events) {
$message = $event.Message
if ($message -match "HKLM\\SOFTWARE\\Microsoft\\Windows Defender\\Exclusions\\Paths\\([^\s]+)") {
[PSCustomObject]@{
Path = $matches[1]
TimeCreated = $event.TimeCreated
}
}
}
if ($TableOutput) {
$subject = "[+] Exclusion Paths:"
$subject | Out-File $TableOutputFile -Append
$exclusionPaths | Format-Table -AutoSize | Out-File $TableOutputFile -Append
} elseif ($CSVOutput) {
Write-Host "[+] Dumped Exclusion Paths to ExclusionPaths.csv"
$exclusionPaths | Export-Csv -Path "ExclusionPaths.csv" -NoTypeInformation
} else {
foreach ($path in $exclusionPaths) {
$path | Format-List
}
}
} catch {
Write-Error "Failed to query exclusion paths: $_"
}
}
function Query-RegASRRules {
param (
[switch]$TableOutput,
[string]$TableOutputFile,
[switch]$CSVOutput
)
try {
$logName = "Microsoft-Windows-Windows Defender/Operational"
$query = "*[System[Provider[@Name='Microsoft-Windows-Windows Defender'] and (EventID=5007)]]"
$events = Get-WinEvent -LogName $logName -FilterXPath $query
$asrDescriptions = Get-ASRRuleDescriptions
$asrRules = foreach ($event in $events) {
$message = $event.Message
if ($message -match "HKLM\\SOFTWARE\\Microsoft\\Windows Defender\\Windows Defender Exploit Guard\\ASR\\Rules\\([0-9A-Fa-f-]+)") {
$asrRuleId = $matches[1].ToLower()
$description = if ($asrDescriptions.ContainsKey($asrRuleId)) { $asrDescriptions[$asrRuleId] } else { "Unknown ASR Rule" }
[PSCustomObject]@{
RuleId = $asrRuleId
Description = $description
TimeCreated = $event.TimeCreated
}
}
}
if ($TableOutput) {
$subject = "[+] Enabled ASR Rules:"
$subject | Out-File $TableOutputFile -Append
$asrRules | Format-Table -AutoSize | Out-String -Width 4096 | Out-File $TableOutputFile -Append
} elseif ($CSVOutput) {
Write-Host "[+] Dumped Enabled ASR Rules to ASRRules.csv"
$asrRules | Export-Csv -Path "ASRRules.csv" -NoTypeInformation
} else {
foreach ($rule in $asrRules) {
$rule | Format-List
}
}
} catch {
Write-Error "Failed to query ASR rules: $_"
}
}
function Query-AllowedThreats {
param (
[switch]$TableOutput,
[string]$TableOutputFile,
[switch]$CSVOutput
)
try {
$logName = "Microsoft-Windows-Windows Defender/Operational"
$query = "*[System[(EventID=1117 or EventID=5007)]]"
$events = Get-WinEvent -LogName $logName -FilterXPath $query
$threatDetails = @{}
$allowedThreats = @()
foreach ($event in $events) {
$message = $event.ToXml()
$eventId = $event.Id
if ($eventId -eq 1117) {
$threatId = Select-String -InputObject $message -Pattern 'threatid=(.+?)&' | ForEach-Object { $_.Matches.Groups[1].Value }
$toolName = Select-String -InputObject $message -Pattern "<Data Name='Threat Name'>(.+?)</Data>" | ForEach-Object { $_.Matches.Groups[1].Value }
$path = Select-String -InputObject $message -Pattern "<Data Name='Path'>(.+?)</Data>" | ForEach-Object { $_.Matches.Groups[1].Value }
if ($threatId) {
$threatDetails[$threatId] = @{
ToolName = $toolName
Path = $path
}
}
} elseif ($eventId -eq 5007) {
$newValue = Select-String -InputObject $message -Pattern "<Data Name='New Value'>(.+?)</Data>" | ForEach-Object { $_.Matches.Groups[1].Value }
if ($newValue -and $newValue -match "HKLM\\SOFTWARE\\Microsoft\\Windows Defender\\Threats\\ThreatIDDefaultAction" -and $newValue.EndsWith("= 0x6")) {
$threatId = Select-String -InputObject $newValue -Pattern "ThreatIDDefaultAction\\(.+?) " | ForEach-Object { $_.Matches.Groups[1].Value }
if ($threatDetails[$threatId]) {
$timeCreated = Select-String -InputObject $message -Pattern "<TimeCreated SystemTime='(.+?)'" | ForEach-Object { $_.Matches.Groups[1].Value }
$timeCreatedUtc = [datetime]::ParseExact($timeCreated, "yyyy-MM-ddTHH:mm:ss.fffffffK", $null, [System.Globalization.DateTimeStyles]::AssumeUniversal).ToUniversalTime()
$allowedThreats += [PSCustomObject]@{
ThreatID = $threatId
ToolName = $threatDetails[$threatId].ToolName
Path = $threatDetails[$threatId].Path
TimeCreated = $timeCreatedUtc
}
}
}
}
}
if ($TableOutput) {
$subject = "[+] Allowed Threats:"
$subject | Out-File $TableOutputFile -Append
$allowedThreats | Format-Table -AutoSize | Out-File $TableOutputFile -Append
} elseif ($CSVOutput) {
Write-Host "[+] Dumped Allowed Threats to AllowedThreats.csv"
$allowedThreats | Export-Csv -Path "AllowedThreats.csv" -NoTypeInformation
} else {
foreach ($threat in $allowedThreats) {
$threat | Format-List
}
}
} catch {
Write-Error "Failed to query allowed threats: $_"
}
}
function Query-ProtectionHistory {
param (
[switch]$TableOutput,
[string]$TableOutputFile,
[switch]$CSVOutput
)
try {
$logName = "Microsoft-Windows-Windows Defender/Operational"
$query = "*[System[(EventID=1117)]]"
$events = Get-WinEvent -LogName $logName -FilterXPath $query
$protectionHistory = foreach ($event in $events) {
$message = $event.ToXml()
$eventId = $event.Id
if ($eventId -eq 1117) {
$threatName = Select-String -InputObject $message -Pattern "<Data Name='Threat Name'>(.+?)</Data>" | ForEach-Object { $_.Matches.Groups[1].Value }
$severityName = Select-String -InputObject $message -Pattern "<Data Name='Severity Name'>(.+?)</Data>" | ForEach-Object { $_.Matches.Groups[1].Value }
$categoryName = Select-String -InputObject $message -Pattern "<Data Name='Category Name'>(.+?)</Data>" | ForEach-Object { $_.Matches.Groups[1].Value }
$path = Select-String -InputObject $message -Pattern "<Data Name='Path'>(.+?)</Data>" | ForEach-Object { $_.Matches.Groups[1].Value }
$actionName = Select-String -InputObject $message -Pattern "<Data Name='Action Name'>(.+?)</Data>" | ForEach-Object { $_.Matches.Groups[1].Value }
$timeCreated = Select-String -InputObject $message -Pattern "<TimeCreated SystemTime='(.+?)'" | ForEach-Object { $_.Matches.Groups[1].Value }
$timeCreatedUtc = [datetime]::ParseExact($timeCreated, "yyyy-MM-ddTHH:mm:ss.fffffffK", $null, [System.Globalization.DateTimeStyles]::AssumeUniversal).ToUniversalTime()
[PSCustomObject]@{
ThreatName = $threatName
Severity = $severityName
Category = $categoryName
Path = $path
ActionTaken = $actionName
TimeCreated = $timeCreatedUtc
}
}
}
if ($TableOutput) {
$subject = "[+] Protection History:"
$subject | Out-File $TableOutputFile -Append
$protectionHistory | Format-Table -AutoSize | Out-String -Width 4096 | Out-File $TableOutputFile -Append
} elseif ($CSVOutput) {
Write-Host "[+] Dumped Protection History to ProtectionHistory.csv"
$protectionHistory | Export-Csv -Path "ProtectionHistory.csv" -NoTypeInformation
} else {
foreach ($history in $protectionHistory) {
$history | Format-List
}
}
} catch {
Write-Error "Failed to query protection history: $_"
}
}
function Query-ExploitGuardProtectionHistory {
param (
[switch]$TableOutput,
[string]$TableOutputFile,
[switch]$CSVOutput
)
try {
$logName = "Microsoft-Windows-Windows Defender/Operational"
$query = "*[System[(EventID=1121)]]"
$events = Get-WinEvent -LogName $logName -FilterXPath $query -ErrorAction SilentlyContinue
$asrDescriptions = Get-ASRRuleDescriptions
$exploitGuardHistory = foreach ($event in $events) {
$message = $event.Message
$asrRuleId = if ($message -match "ID: ([0-9A-Fa-f-]+)") { $matches[1] } else { $null }
$detectionTime = if ($message -match "Detection time: (.+?)\s") { [datetime]$matches[1] } else { $null }
$user = if ($message -match "User: (.+?)\s") { $matches[1] } else { $null }
$path = if ($message -match "Path: (.+?)\s") { $matches[1] } else { $null }
$processName = if ($message -match "Process Name: (.+?)\s") { $matches[1] } else { $null }
$targetCommandline = if ($message -match "Target Commandline: (.+?)\s") { $matches[1] } else { $null }
$description = if ($asrRuleId -and $asrDescriptions.ContainsKey($asrRuleId)) { $asrDescriptions[$asrRuleId] } else { "Unknown ASR Rule" }
[PSCustomObject]@{
RuleId = $asrRuleId
Description = $description
DetectionTime = $detectionTime
User = $user
Path = $path
ProcessName = $processName
TargetCommandline = $targetCommandline
}
}
if ($TableOutput) {
$subject = "[+] Exploit Guard Protection History:"
$subject | Out-File $TableOutputFile -Append
$exploitGuardHistory | Format-Table -AutoSize | Out-String -Width 4096 | Out-File $TableOutputFile -Append
} elseif ($CSVOutput) {
Write-Host "[+] Dumped Exploit Guard Protection History to ExploitGuardProtectionHistory.csv"
$exploitGuardHistory | Export-Csv -Path "ExploitGuardProtectionHistory.csv" -NoTypeInformation
} else {
foreach ($history in $exploitGuardHistory) {
$history | Format-List
}
}
} catch {
Write-Error "Failed to query exploit guard protection history: $_"
}
}
function Query-FirewallExclusions {
param (
[switch]$TableOutput,
[string]$TableOutputFile = "FirewallExclusions.txt",
[switch]$CSVOutput
)
$logName = "Microsoft-Windows-Windows Firewall With Advanced Security/Firewall"
$query = "*[System[(EventID=2099 or EventID=2097)]]"
$events = Get-WinEvent -LogName $logName -FilterXPath $query
$firewallExclusions = foreach ($event in $events) {
$message = $event.Message
$action = [regex]::Match($message, 'Action:\s*(.+)').Groups[1].Value.Trim()
if ($action -eq "Allow") {
[PSCustomObject]@{
RuleID = [regex]::Match($message, 'Rule ID:\s*(.+)').Groups[1].Value.Trim()
RuleName = [regex]::Match($message, 'Rule Name:\s*(.+)').Groups[1].Value.Trim()
ApplicationPath = [regex]::Match($message, 'Application Path:\s*(.+)').Groups[1].Value.Trim()
Direction = [regex]::Match($message, 'Direction:\s*(.+)').Groups[1].Value.Trim()
Action = $action
TimeCreated = $event.TimeCreated
}
}
}
if ($TableOutput) {
$subject = "[+] Firewall Exclusions:"
$subject | Out-File $TableOutputFile -Append
$firewallExclusions | Format-Table -AutoSize | Out-String -Width 4096 | Out-File $TableOutputFile -Append
} elseif ($CSVOutput) {
Write-Host "[+] Dumped Firewall Exclusions to FirewallExclusions.csv"
$firewallExclusions | Export-Csv -Path "FirewallExclusions.csv" -NoTypeInformation
} else {
foreach ($exclusion in $firewallExclusions) {
$exclusion | Format-List
}
}
}