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Script to perform some hardening of Windows OS
:: Windows 10 Hardening Script
:: This is based mostly on my own personal research and testing. My objective is to secure/harden Windows 10 as much as possible while not impacting usability at all. (Think being able to run on this computer's of family members so secure them but not increase the chances of them having to call you to troubleshoot something related to it later on). References for virtually all settings can be found at the bottom. Just before the references section, you will always find several security settings commented out as they could lead to compatibility issues in common consumer setups but they're worth considering.
:: Obligatory 'views are my own'. :)
:: Thank you @jaredhaight for the Win Firewall config recommendations!
:: Thank you @ricardojba for the DLL Safe Order Search reg key!
:: Thank you @jessicaknotts for the help on testing Exploit Guard configs and checking privacy settings!
:: Best script I've found for Debloating Windows 10: https://github.com/Sycnex/Windows10Debloater
::
::#######################################################################
::
:: Change file associations to protect against common ransomware attacks
:: Note that if you legitimately use these extensions, like .bat, you will now need to execute them manually from cmd or powershel
:: Alternatively, you can right-click on them and hit 'Run as Administrator' but ensure it's a script you want to run :)
:: https://support.microsoft.com/en-us/help/883260/information-about-the-attachment-manager-in-microsoft-windows
:: ---------------------
ftype htafile="%SystemRoot%\system32\NOTEPAD.EXE" "%1"
ftype wshfile="%SystemRoot%\system32\NOTEPAD.EXE" "%1"
ftype wsffile="%SystemRoot%\system32\NOTEPAD.EXE" "%1"
ftype batfile="%SystemRoot%\system32\NOTEPAD.EXE" "%1"
ftype jsfile="%SystemRoot%\system32\NOTEPAD.EXE" "%1"
ftype jsefile="%SystemRoot%\system32\NOTEPAD.EXE" "%1"
ftype vbefile="%SystemRoot%\system32\NOTEPAD.EXE" "%1"
ftype vbsfile="%SystemRoot%\system32\NOTEPAD.EXE" "%1"
::
::#######################################################################
:: Enable and configure Windows Defender and advanced settings
::#######################################################################
::
:: Reset Defender to defaults. Commented out but available for reference
::"%programfiles%"\"Windows Defender"\MpCmdRun.exe -RestoreDefaults
:: https://docs.microsoft.com/en-us/windows/client-management/mdm/policy-csp-defender#defender-submitsamplesconsent
:: https://docs.microsoft.com/en-us/powershell/module/defender/set-mppreference?view=win10-ps
::
:: Start Defender Service
sc start WinDefend
::Enable Windows Defender sandboxing
setx /M MP_FORCE_USE_SANDBOX 1
:: Update signatures
"%ProgramFiles%"\"Windows Defender"\MpCmdRun.exe -SignatureUpdate
:: Enable Defender signatures for Potentially Unwanted Applications (PUA)
powershell.exe Set-MpPreference -PUAProtection enable
:: Enable Defender periodic scanning
reg add "HKCU\SOFTWARE\Microsoft\Windows Defender" /v PassiveMode /t REG_DWORD /d 2 /f
:: Enable Cloud functionality of Windows Defender
powershell.exe Set-MpPreference -MAPSReporting Advanced
powershell.exe Set-MpPreference -SubmitSamplesConsent 0
::
:: Enable early launch antimalware driver for scan of boot-start drivers
:: 3 is the default which allows good, unknown and 'bad but critical'. Recommend trying 1 for 'good and unknown' or 8 which is 'good only'
reg add "HKCU\SYSTEM\CurrentControlSet\Policies\EarlyLaunch" /v DriverLoadPolicy /t REG_DWORD /d 3 /f
::
:: Enable ASR rules in Win10 1903 ExploitGuard to mitigate Office malspam
:: Blocks Office childprocs, Office proc injection, Office win32 api calls & executable content creation
:: Note these only work when Defender is your primary AV
::
:: Block Office Child Process Creation
powershell.exe Add-MpPreference -AttackSurfaceReductionRules_Ids D4F940AB-401B-4EFC-AADC-AD5F3C50688A -AttackSurfaceReductionRules_Actions Enabled
:: Block Process Injection
powershell.exe Add-MpPreference -AttackSurfaceReductionRules_Ids 75668C1F-73B5-4CF0-BB93-3ECF5CB7CC84 -AttackSurfaceReductionRules_Actions Enabled
:: Block Win32 API calls in macros
powershell.exe Add-MpPreference -AttackSurfaceReductionRules_Ids 92E97FA1-2EDF-4476-BDD6-9DD0B4DDDC7B -AttackSurfaceReductionRules_Actions Enabled
:: Block Office from creating executables
powershell.exe Add-MpPreference -AttackSurfaceReductionRules_Ids 3B576869-A4EC-4529-8536-B80A7769E899 -AttackSurfaceReductionRules_Actions Enabled
:: Block execution of potentially obfuscated scripts
powershell.exe Add-MpPreference -AttackSurfaceReductionRules_Ids 5BEB7EFE-FD9A-4556-801D-275E5FFC04CC -AttackSurfaceReductionRules_Actions Enabled
:: Block executable content from email client and webmail
powershell.exe Add-MpPreference -AttackSurfaceReductionRules_Ids BE9BA2D9-53EA-4CDC-84E5-9B1EEEE46550 -AttackSurfaceReductionRules_Actions Enabled
:: Block JavaScript or VBScript from launching downloaded executable content
powershell.exe Add-MpPreference -AttackSurfaceReductionRules_Ids D3E037E1-3EB8-44C8-A917-57927947596D -AttackSurfaceReductionRules_Actions Enabled
:: Block lsass cred theft
powershell.exe Add-MpPreference -AttackSurfaceReductionRules_Ids 9e6c4e1f-7d60-472f-ba1a-a39ef669e4b2 -AttackSurfaceReductionRules_Actions Enabled
:: Block untrusted and unsigned processes that run from USB
powershell.exe Add-MpPreference -AttackSurfaceReductionRules_Ids b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4 -AttackSurfaceReductionRules_Actions Enabled
:: Block Adobe Reader from creating child processes
powershell.exe Add-MpPreference -AttackSurfaceReductionRules_Ids 7674ba52-37eb-4a4f-a9a1-f0f9a1619a2c -AttackSurfaceReductionRules_Actions Enabled
:: Block persistence through WMI event subscription
powershell.exe Add-MpPreference -AttackSurfaceReductionRules_Ids e6db77e5-3df2-4cf1-b95a-636979351e5b -AttackSurfaceReductionRules_Actions Enabled
:: Block process creations originating from PSExec and WMI commands
powershell.exe Add-MpPreference -AttackSurfaceReductionRules_Ids d1e49aac-8f56-4280-b9ba-993a6d77406c -AttackSurfaceReductionRules_Actions Enabled
::
:: Enable Defender exploit system-wide protection
:: The commented line includes CFG which can cause issues with apps like Discord & Mouse Without Borders
:: powershell.exe Set-Processmitigation -System -Enable DEP,EmulateAtlThunks,BottomUp,HighEntropy,SEHOP,SEHOPTelemetry,TerminateOnError,CFG
powershell.exe Set-Processmitigation -System -Enable DEP,EmulateAtlThunks,BottomUp,HighEntropy,SEHOP,SEHOPTelemetry,TerminateOnError
::
::#######################################################################
:: Enable and Configure Internet Browser Settings
::#######################################################################
::
:: Enable SmartScreen for Edge
reg add "HKCU\SOFTWARE\Policies\Microsoft\MicrosoftEdge\PhishingFilter" /v EnabledV9 /t REG_DWORD /d 1 /f
:: Enable Notifications in IE when a site attempts to install software
reg add "HKCU\SOFTWARE\Policies\Microsoft\Windows\Installer" /v SafeForScripting /t REG_DWORD /d 0 /f
:: Disable Edge password manager to encourage use of proper password manager
reg add "HKCU\SOFTWARE\Policies\Microsoft\MicrosoftEdge\Main" /v "FormSuggest Passwords" /t REG_SZ /d no /f
::
::#######################################################################
:: Enable and Configure Google Chrome Internet Browser Settings
::#######################################################################
::
reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "AdvancedProtectionAllowed" /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "AllowCrossOriginAuthPrompt" /t REG_DWORD /d 0 /f
reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "AlwaysOpenPdfExternally" /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "AmbientAuthenticationInPrivateModesEnabled" /t REG_DWORD /d 0 /f
reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "AudioCaptureAllowed" /t REG_DWORD /d 0 /f
reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "AudioSandboxEnabled" /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "BlockExternalExtensions" /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "DnsOverHttpsMode" /t REG_SZ /d on /f
reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "SSLVersionMin" /t REG_SZ /d tls1 /f
reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "ScreenCaptureAllowed" /t REG_DWORD /d 0 /f
reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "SitePerProcess" /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "TLS13HardeningForLocalAnchorsEnabled" /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "VideoCaptureAllowed" /t REG_DWORD /d 0 /f
::
::#######################################################################
:: Enable and Configure Microsoft Office Security Settings
::#######################################################################
::
:: Harden all version of MS Office itself against common malspam attacks
:: Disables Macros, enables ProtectedView
:: ---------------------
reg add "HKCU\Software\Policies\Microsoft\Office\12.0\Publisher\Security" /v vbawarnings /t REG_DWORD /d 4 /f
reg add "HKCU\Software\Policies\Microsoft\Office\12.0\Word\Security" /v vbawarnings /t REG_DWORD /d 4 /f
reg add "HKCU\Software\Policies\Microsoft\Office\14.0\Publisher\Security" /v vbawarnings /t REG_DWORD /d 4 /f
reg add "HKCU\Software\Policies\Microsoft\Office\14.0\Word\Security" /v vbawarnings /t REG_DWORD /d 4 /f
reg add "HKCU\Software\Policies\Microsoft\Office\15.0\Outlook\Security" /v markinternalasunsafe /t REG_DWORD /d 0 /f
reg add "HKCU\Software\Policies\Microsoft\Office\15.0\Word\Security" /v blockcontentexecutionfrominternet /t REG_DWORD /d 1 /f
reg add "HKCU\Software\Policies\Microsoft\Office\15.0\Excel\Security" /v blockcontentexecutionfrominternet /t REG_DWORD /d 1 /f
reg add "HKCU\Software\Policies\Microsoft\Office\15.0\PowerPoint\Security" /v blockcontentexecutionfrominternet /t REG_DWORD /d 1 /f
reg add "HKCU\Software\Policies\Microsoft\Office\15.0\Word\Security" /v vbawarnings /t REG_DWORD /d 4 /f
reg add "HKCU\Software\Policies\Microsoft\Office\15.0\Publisher\Security" /v vbawarnings /t REG_DWORD /d 4 /f
reg add "HKCU\Software\Policies\Microsoft\Office\16.0\Outlook\Security" /v markinternalasunsafe /t REG_DWORD /d 0 /f
reg add "HKCU\Software\Policies\Microsoft\Office\16.0\Word\Security" /v blockcontentexecutionfrominternet /t REG_DWORD /d 1 /f
reg add "HKCU\Software\Policies\Microsoft\Office\16.0\Excel\Security" /v blockcontentexecutionfrominternet /t REG_DWORD /d 1 /f
reg add "HKCU\Software\Policies\Microsoft\Office\16.0\PowerPoint\Security" /v blockcontentexecutionfrominternet /t REG_DWORD /d 1 /f
reg add "HKCU\Software\Policies\Microsoft\Office\16.0\Word\Security" /v vbawarnings /t REG_DWORD /d 4 /f
reg add "HKCU\Software\Policies\Microsoft\Office\16.0\Publisher\Security" /v vbawarnings /t REG_DWORD /d 4 /f
::
:: Harden all version of MS Office itself against DDE malspam attacks
:: Disables Macros, enables ProtectedView
:: ---------------------
::
reg add "HKCU\Software\Microsoft\Office\14.0\Word\Options" /v DontUpdateLinks /t REG_DWORD /d 00000001 /f
reg add "HKCU\Software\Microsoft\Office\14.0\Word\Options\WordMail" /v DontUpdateLinks /t REG_DWORD /d 00000001 /f
reg add "HKCU\Software\Microsoft\Office\15.0\Word\Options" /v DontUpdateLinks /t REG_DWORD /d 00000001 /f
reg add "HKCU\Software\Microsoft\Office\15.0\Word\Options\WordMail" /v DontUpdateLinks /t REG_DWORD /d 00000001 /f
reg add "HKCU\Software\Microsoft\Office\16.0\Word\Options" /v DontUpdateLinks /t REG_DWORD /d 00000001 /f
reg add "HKCU\Software\Microsoft\Office\16.0\Word\Options\WordMail" /v DontUpdateLinks /t REG_DWORD /d 00000001 /f
::
::#######################################################################
:: Enable and Configure General Windows Security Settings
::#######################################################################
:: Disables DNS multicast, smart mutli-homed resolution, netbios, powershellv2, printer driver download and printing over http, icmp redirect
:: Enables UAC and sets to always notify, Safe DLL loading (DLL Hijacking prevention), saving zone information, explorer DEP, explorer shell protocol protected mode
:: ---------------------
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\DNSClient" /v EnableMulticast /t REG_DWORD /d 0 /f
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\DNSClient" /v DisableSmartNameResolution /t REG_DWORD /d 1 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters" /v DisableParallelAandAAAA /t REG_DWORD /d 1 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters" /v SMB1 /t REG_DWORD /d 0 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" /v IGMPLevel /t REG_DWORD /d 0 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" /v DisableIPSourceRouting /t REG_DWORD /d 2 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" /v EnableICMPRedirect /t REG_DWORD /d 0 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters" /v DisableIPSourceRouting /t REG_DWORD /d 2 /f
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableVirtualization /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v ConsentPromptBehaviorAdmin /t REG_DWORD /d 2 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager" /v SafeDLLSearchMode /t REG_DWORD /d 1 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager" /v ProtectionMode /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Attachments" /v SaveZoneInformation /t REG_DWORD /d 2 /f
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\Explorer" /v NoDataExecutionPrevention /t REG_DWORD /d 0 /f
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\Explorer" /v NoHeapTerminationOnCorruption /t REG_DWORD /d 0 /f
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v PreXPSP2ShellProtocolBehavior /t REG_DWORD /d 0 /f
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Printers" /v DisableWebPnPDownload /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Printers" /v DisableHTTPPrinting /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Microsoft\WcmSvc\wifinetworkmanager\config" /v AutoConnectAllowedOEM /t REG_DWORD /d 0 /f
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\WcmSvc\GroupPolicy" /v fMinimizeConnections /t REG_DWORD /d 1 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Services\Netbt\Parameters" /v NoNameReleaseOnDemand /t REG_DWORD /d 1 /f
wmic /interactive:off nicconfig where (TcpipNetbiosOptions=0 OR TcpipNetbiosOptions=1) call SetTcpipNetbios 2
powershell.exe Disable-WindowsOptionalFeature -Online -FeatureName MicrosoftWindowsPowerShellV2 -norestart
powershell.exe Disable-WindowsOptionalFeature -Online -FeatureName MicrosoftWindowsPowerShellV2Root -norestart
::
:: Prioritize ECC Curves with longer keys
::reg add "HKLM\SOFTWARE\Policies\Microsoft\Cryptography\Configuration\SSL\00010002" /v EccCurves /t REG_MULTI_SZ /d NistP384,NistP256 /f
:: Prevent Kerberos from using DES or RC4
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\Kerberos\Parameters" /v SupportedEncryptionTypes /t REG_DWORD /d 2147483640 /f
:: Encrypt and sign outgoing secure channel traffic when possible
reg add "HKLM\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters" /v SealSecureChannel /t REG_DWORD /d 1 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters" /v SignSecureChannel /t REG_DWORD /d 1 /f
::
:: Enable SmartScreen
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\System" /v EnableSmartScreen /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\System" /v ShellSmartScreenLevel /t REG_SZ /d Block /f
::
:: Enforce device driver signing
BCDEDIT /set nointegritychecks OFF
::
:: Windows Update Settings
:: Prevent Delivery Optimization from downloading Updates from other computers across the internet
:: 1 will restrict to LAN only. 0 will disable the feature entirely
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\DeliveryOptimization" /v DODownloadMode /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\" /v DODownloadMode /t REG_DWORD /d 1 /f
::
:: Set screen saver inactivity timeout to 15 minutes
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v InactivityTimeoutSecs /t REG_DWORD /d 900 /f
:: Enable password prompt on sleep resume while plugged in and on battery
reg add "HKLM\SOFTWARE\Policies\Microsoft\Power\PowerSettings\0e796bdb-100d-47d6-a2d5-f7d2daa51f51" /v ACSettingIndex /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Policies\Microsoft\Power\PowerSettings\0e796bdb-100d-47d6-a2d5-f7d2daa51f51" /v DCSettingIndex /t REG_DWORD /d 1 /f
::
:: Windows Remote Access Settings
:: Disable solicited remote assistance
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /v fAllowToGetHelp /t REG_DWORD /d 0 /f
:: Require encrypted RPC connections to Remote Desktop
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /v fEncryptRPCTraffic /t REG_DWORD /d 1 /f
:: Prevent sharing of local drives via Remote Desktop Session Hosts
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /v fDisableCdm /t REG_DWORD /d 1 /f
::
:: Removal Media Settings
:: Disable autorun/autoplay on all drives
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\Explorer" /v NoAutoplayfornonVolume /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer" /v NoDriveTypeAutoRun /t REG_DWORD /d 255 /f
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v NoAutorun /t REG_DWORD /d 1 /f
::
:: Windows Sharing/SMB Settings
:: Disable smb1, anonymous access to named pipes/shared, anonymous enumeration of SAM accounts, non-admin remote access to SAM
:: Enable optional SMB client signing
powershell.exe Disable-WindowsOptionalFeature -Online -FeatureName smb1protocol -norestart
reg add "HKLM\SYSTEM\CurrentControlSet\Services\mrxsmb10" /v Start /t REG_DWORD /d 4 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters" /v SMB1 /t REG_DWORD /d 0 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Services\LanManServer\Parameters" /v RestrictNullSessAccess /t REG_DWORD /d 1 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v RestrictAnonymousSAM /t REG_DWORD /d 1 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v RestrictAnonymous /t REG_DWORD /d 1 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v EveryoneIncludesAnonymous /t REG_DWORD /d 0 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v RestrictRemoteSAM /t REG_SZ /d "O:BAG:BAD:(A;;RC;;;BA)" /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v UseMachineId /t REG_DWORD /d 1 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v LimitBlankPasswordUse /t REG_DWORD /d 1 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\LSA\MSV1_0" /v allownullsessionfallback /t REG_DWORD /d 0 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters" /v EnableSecuritySignature /t REG_DWORD /d 1 /f
:: Force SMB server signing
:: This could cause impact if the Windows computer this is run on is hosting a file share and the other computers connecting to it do not have SMB client signing enabled.
reg add "HKLM\SYSTEM\CurrentControlSet\Services\LanManServer\Parameters" /v RequireSecuritySignature /t REG_DWORD /d 1 /f
::
:: Harden lsass to help protect against credential dumping (mimikatz) and audit lsass access requests
:: Configures lsass.exe as a protected process and disables wdigest
:: Enables delegation of non-exported credentials which enables support for Restricted Admin Mode or Remote Credential Guard
:: ---------------------
reg add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\LSASS.exe" /v AuditLevel /t REG_DWORD /d 00000008 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v RunAsPPL /t REG_DWORD /d 00000001 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\WDigest" /v UseLogonCredential /t REG_DWORD /d 0 /f
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\CredentialsDelegation" /v AllowProtectedCreds /t REG_DWORD /d 1 /f
::
:: Windows RPC and WinRM settings
:: Stop WinRM
net stop WinRM
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\WinRM\Service" /v AllowUnencryptedTraffic /t REG_DWORD /d 0 /f
:: Disable WinRM Client Digiest authentication
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\WinRM\Client" /v AllowDigest /t REG_DWORD /d 0 /f
:: Disabling RPC usage from a remote asset interacting with scheduled tasks
reg add "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Schedule" /v DisableRpcOverTcp /t REG_DWORD /d 1 /f
:: Disabling RPC usage from a remote asset interacting with services
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control" /v DisableRemoteScmEndpoints /t REG_DWORD /d 1 /f
::
:: Biometrics
:: Enable anti-spoofing for facial recognition
reg add "HKLM\SOFTWARE\Policies\Microsoft\Biometrics\FacialFeatures" /v EnhancedAntiSpoofing /t REG_DWORD /d 1 /f
:: Disable other camera use while screen is locked
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\Personalization" /v NoLockScreenCamera /t REG_DWORD /d 1 /f
:: Prevent Windows app voice activation while locked
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\AppPrivacy" /v LetAppsActivateWithVoiceAboveLock /t REG_DWORD /d 2 /f
:: Prevent Windows app voice activation entirely (be mindful of those with accesibility needs)
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\AppPrivacy" /v LetAppsActivateWithVoice /t REG_DWORD /d 2 /f
::
::#######################################################################
:: Enable and configure Windows Firewall
::#######################################################################
::
NetSh Advfirewall set allprofiles state on
::
:: Enable Firewall Logging
netsh advfirewall set currentprofile logging filename %systemroot%\system32\LogFiles\Firewall\pfirewall.log
netsh advfirewall set currentprofile logging maxfilesize 4096
netsh advfirewall set currentprofile logging droppedconnections enable
::
:: Block all inbound connections on Public profile
netsh advfirewall set publicprofile firewallpolicy blockinboundalways,allowoutbound
:: Enable Windows Defender Network Protection
powershell.exe Set-MpPreference -EnableNetworkProtection Enabled
::
:: Block Win32 binaries from making netconns when they shouldn't - specifically targeting native processes known to be abused by bad actors
:: ---------------------
Netsh.exe advfirewall firewall add rule name="Block Notepad.exe netconns" program="%systemroot%\system32\notepad.exe" protocol=tcp dir=out enable=yes action=block profile=any
Netsh.exe advfirewall firewall add rule name="Block regsvr32.exe netconns" program="%systemroot%\system32\regsvr32.exe" protocol=tcp dir=out enable=yes action=block profile=any
Netsh.exe advfirewall firewall add rule name="Block calc.exe netconns" program="%systemroot%\system32\calc.exe" protocol=tcp dir=out enable=yes action=block profile=any
Netsh.exe advfirewall firewall add rule name="Block mshta.exe netconns" program="%systemroot%\system32\mshta.exe" protocol=tcp dir=out enable=yes action=block profile=any
Netsh.exe advfirewall firewall add rule name="Block wscript.exe netconns" program="%systemroot%\system32\wscript.exe" protocol=tcp dir=out enable=yes action=block profile=any
Netsh.exe advfirewall firewall add rule name="Block cscript.exe netconns" program="%systemroot%\system32\cscript.exe" protocol=tcp dir=out enable=yes action=block profile=any
Netsh.exe advfirewall firewall add rule name="Block runscripthelper.exe netconns" program="%systemroot%\system32\runscripthelper.exe" protocol=tcp dir=out enable=yes action=block profile=any
Netsh.exe advfirewall firewall add rule name="Block hh.exe netconns" program="%systemroot%\system32\hh.exe" protocol=tcp dir=out enable=yes action=block profile=any
::
::Netsh.exe int ipv6 set int *INTERFACENUMBER* rabaseddnsconfig=disable
::https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16898
::#######################################################################
:: Windows 10 Privacy Settings
::#######################################################################
::
:: Set Windows Analytics to limited enhanced if enhanced is enabled
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\DataCollection" /v LimitEnhancedDiagnosticDataWindowsAnalytics /t REG_DWORD /d 1 /f
:: Set Windows Telemetry to security only
:: If you intend to use Enhanced for Windows Analytics then set this to "2" instead
:: Note my understanding is W10 Home edition will do a minimum of "Basic"
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\DataCollection" /v AllowTelemetry /t REG_DWORD /d 0 /f
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\DataCollection" /v MaxTelemetryAllowed /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Diagnostics\DiagTrack" /v ShowedToastAtLevel /t REG_DWORD /d 1 /f
:: Disable location data
reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\CapabilityAccessManager\ConsentStore" /v Location /t REG_SZ /d Deny /f
:: Prevent the Start Menu Search from providing internet results and using your location
reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Search" /v BingSearchEnabled /t REG_DWORD /d 0 /f
reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Search" /v AllowSearchToUseLocation /t REG_DWORD /d 0 /f
reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Search" /v CortanaConsent /t REG_DWORD /d 0 /f
:: Disable publishing of Win10 user activity
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\System" /v PublishUserActivities /t REG_DWORD /d 1 /f
:: Disable Win10 settings sync to cloud
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\SettingSync" /v DisableSettingSync /t REG_DWORD /d 2 /f
:: Disable the advertising ID
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\AdvertisingInfo" /v DisabledByGroupPolicy /t REG_DWORD /d 1 /f
::
:: Disable Windows GameDVR (Broadcasting and Recording)
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\GameDVR" /v AllowGameDVR /t REG_DWORD /d 0 /f
:: Disable Microsoft consumer experience which prevent notifications of suggested applications to install
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\CloudContent" /v DisableWindowsConsumerFeatures /t REG_DWORD /d 1 /f
reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\ContentDeliveryManager" /v SystemPaneSuggestionsEnabled /t REG_DWORD /d 0 /f
reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\ContentDeliveryManager" /v SilentInstalledAppsEnabled /t REG_DWORD /d 0 /f
reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\ContentDeliveryManager" /v PreInstalledAppsEnabled /t REG_DWORD /d 0 /f
reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\ContentDeliveryManager" /v OemPreInstalledAppsEnabled /t REG_DWORD /d 0 /f
:: Disable websites accessing local language list
reg add "HKCU\Control Panel\International\User Profile" /v HttpAcceptLanguageOptOut /t REG_DWORD /d 1 /f
:: Prevent toast notifications from appearing on lock screen
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\PushNotifications" /v NoToastApplicationNotificationOnLockScreen /t REG_DWORD /d 1 /f
::
::#######################################################################
:: Enable Advanced Windows Logging
::#######################################################################
::
:: Enlarge Windows Event Security Log Size
wevtutil sl Security /ms:1024000 /f
wevtutil sl Application /ms:1024000 /f
wevtutil sl System /ms:1024000 /f
wevtutil sl "Windows Powershell" /ms:1024000 /f
wevtutil sl "Microsoft-Windows-PowerShell/Operational" /ms:1024000 /f
:: Record command line data in process creation events eventid 4688
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\Audit" /v ProcessCreationIncludeCmdLine_Enabled /t REG_DWORD /d 1 /f
::
:: Enabled Advanced Settings
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v SCENoApplyLegacyAuditPolicy /t REG_DWORD /d 1 /f
:: Enable PowerShell Logging
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\PowerShell\ModuleLogging" /v EnableModuleLogging /t REG_DWORD /d 1 /f
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\PowerShell\ScriptBlockLogging" /v EnableScriptBlockLogging /t REG_DWORD /d 1 /f
::
:: Enable Windows Event Detailed Logging
:: This is intentionally meant to be a subset of expected enterprise logging as this script may be used on consumer devices.
:: For more extensive Windows logging, I recommend https://www.malwarearchaeology.com/cheat-sheets
Auditpol /set /subcategory:"Security Group Management" /success:enable /failure:enable
Auditpol /set /subcategory:"Process Creation" /success:enable /failure:enable
Auditpol /set /subcategory:"Logoff" /success:enable /failure:disable
Auditpol /set /subcategory:"Logon" /success:enable /failure:enable
Auditpol /set /subcategory:"Filtering Platform Connection" /success:enable /failure:disable
Auditpol /set /subcategory:"Removable Storage" /success:enable /failure:enable
Auditpol /set /subcategory:"SAM" /success:disable /failure:disable
Auditpol /set /subcategory:"Filtering Platform Policy Change" /success:disable /failure:disable
Auditpol /set /subcategory:"IPsec Driver" /success:enable /failure:enable
Auditpol /set /subcategory:"Security State Change" /success:enable /failure:enable
Auditpol /set /subcategory:"Security System Extension" /success:enable /failure:enable
Auditpol /set /subcategory:"System Integrity" /success:enable /failure:enable
::
::#######################################################################
:: Extra settings commented out but worth considering
::#######################################################################
::
:: Uninstall common extra apps found on a lot of Win10 installs
:: Obviously do a quick review to ensure it isn't removing any apps you or your user need to use.
:: https://docs.microsoft.com/en-us/windows/application-management/apps-in-windows-10
:: PowerShell command to reinstall all pre-installed apps below
:: Get-AppxPackage -AllUsers| Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
powershell.exe -command "Get-AppxPackage *Microsoft.BingWeather* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.DesktopAppInstaller* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.GetHelp* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.Getstarted* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.Messaging* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.Microsoft3DViewer* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.MicrosoftOfficeHub* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.MicrosoftSolitaireCollection* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.MicrosoftStickyNotes* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.MixedReality.Portal* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.Office.OneNote* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.OneConnect* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.Print3D* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.SkypeApp* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.Wallet* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.WebMediaExtensions* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.WebpImageExtension* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.WindowsAlarms* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.WindowsCamera* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *microsoft.windowscommunicationsapps* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.WindowsFeedbackHub* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.WindowsMaps* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.WindowsSoundRecorder* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.Xbox.TCUI* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.XboxApp* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.XboxGameOverlay* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.XboxGamingOverlay* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.XboxIdentityProvider* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.XboxSpeechToTextOverlay* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.YourPhone* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.ZuneMusic* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.ZuneVideo* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.WindowsFeedback* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Windows.ContactSupport* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *PandoraMedia* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *AdobeSystemIncorporated. AdobePhotoshop* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Duolingo* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.BingNews* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.Office.Sway* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.Advertising.Xaml* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.Services.Store.Engagement* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *ActiproSoftware* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *EclipseManager* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *SpotifyAB.SpotifyMusic* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *king.com.* -AllUsers | Remove-AppxPackage"
powershell.exe -command "Get-AppxPackage *Microsoft.NET.Native.Framework.1.* -AllUsers | Remove-AppxPackage"
:: Removed Provisioned Apps
:: This will prevent these apps from being reinstalled on new user first logon
:: Obviously I manually chose this list. If you truly want to nuke all the provisioned apps, you can use the below commented command in PowerShell
:: Get-AppXProvisionedPackage -Online | Remove-AppxProvisionedPackage -Online
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.BingWeather'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.GetHelp'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.Getstarted'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.MicrosoftOfficeHub'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.MicrosoftSolitaireCollection'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.MicrosoftStickyNotes'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.MixedReality.Portal'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.Office.OneNote'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.SkypeApp'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.WindowsAlarms'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.WindowsCamera'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'microsoft.windowscommunicationsapps'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.WindowsFeedbackHub'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.WindowsMaps'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.WindowsSoundRecorder'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.XboxApp'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.XboxTCUI'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.XboxGameOverlay'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.XboxGamingOverlay'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.XboxIdentityProvider'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.YourPhone'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.ZuneMusic'} | Remove-AppxProvisionedPackage -Online"
powershell.exe -command "Get-AppxProvisionedPackage -Online | Where-Object {$_.DisplayName -eq 'Microsoft.ZuneVideo'} | Remove-AppxProvisionedPackage -Online"
::
::#######################################################################
:: Extra settings commented out but worth considering
::#######################################################################
::
:: Enforce NTLMv2 and LM authentication
:: This is commented out by default as it could impact access to consumer-grade file shares but it's a recommended setting
:: reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v LmCompatibilityLevel /t REG_DWORD /d 5 /f
::
:: Prevent unencrypted passwords being sent to third-party SMB servers
:: This is commented out by default as it could impact access to consumer-grade file shares but it's a recommended setting
:: reg add "HKLM\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters" /v EnablePlainTextPassword /t REG_DWORD /d 0 /f
::
:: Prevent guest logons to SMB servers
:: This is commented out by default as it could impact access to consumer-grade file shares but it's a recommended setting
:: reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\LanmanWorkstation" /v AllowInsecureGuestAuth /t REG_DWORD /d 0 /f
::
:: Force SMB server signing
:: This is commented out by default as it could impact access to consumer-grade file shares but it's a recommended setting
:: reg add "HKLM\SYSTEM\CurrentControlSet\Services\LanManServer\Parameters" /v RequireSecuritySignature /t REG_DWORD /d 1 /f
::
:: Enable Windows Defender Application Guard
:: This setting is commented out as it enables subset of DC/CG which renders other virtualization products unsuable. Can be enabled if you don't use those
:: powershell.exe Enable-WindowsOptionalFeature -online -FeatureName Windows-Defender-ApplicationGuard -norestart
::
:: Enable Windows Defender Credential Guard
:: This setting is commented out as it enables subset of DC/CG which renders other virtualization products unsuable. Can be enabled if you don't use those
:: reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\DeviceGuard" /v EnableVirtualizationBasedSecurity /t REG_DWORD /d 1 /f
:: reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\DeviceGuard" /v RequirePlatformSecurityFeatures /t REG_DWORD /d 3 /f
:: reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\DeviceGuard" /v LsaCfgFlags /t REG_DWORD /d 1 /f
::
:: The following variant also enables forced ASLR and CFG but causes issues with several third party apps
:: powershell.exe Set-Processmitigation -System -Enable DEP,CFG,ForceRelocateImages,BottomUp,SEHOP
::
:: Block executable files from running unless they meet a prevalence, age, or trusted list criterion
:: This one is commented out for now as I need to research and test more to determine potential impact
:: powershell.exe Add-MpPreference -AttackSurfaceReductionRules_Ids 01443614-cd74-433a-b99e-2ecdc07bfc25 -AttackSurfaceReductionRules_Actions Enabled
::
:: Enable Windows Defender real time monitoring
:: Commented out given consumers often run third party anti-virus. You can run either.
:: powershell.exe -command "Set-MpPreference -DisableRealtimeMonitoring $false"
:: reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Real-Time Protection" /v DisableRealtimeMonitoring /t REG_DWORD /d 0 /f
::
:: Disable internet connection sharing
:: Commented out as it's not enabled by default and if it is enabled, may be for a reason
:: reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\Network Connections" /v NC_ShowSharedAccessUI /t REG_DWORD /d 0 /f
::
:: Always re-process Group Policy even if no changes
:: Commented out as consumers don't typically use GPO
:: reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\Group Policy\{35378EAC-683F-11D2-A89A-00C04FBBCFA2}" /v NoGPOListChanges /t REG_DWORD /d 0 /f
::
:: Force logoff if smart card removed
:: Set to "2" for logoff, set to "1" for lock
:: Commented out as consumers don't typically use smart cards
:: reg add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v SCRemoveOption /t REG_DWORD /d 2 /f
::
:: Restrict privileged local admin tokens being used from network
:: Commented out as it only works on domain-joined assets
:: reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v LocalAccountTokenFilterPolicy /t REG_DWORD /d 0 /f
::
:: Ensure outgoing secure channel traffic is encrytped
:: Commented out as it only works on domain-joined assets
:: reg add "HKLM\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters" /v RequireSignOrSeal /t REG_DWORD /d 1 /f
::
:: Enforce LDAP client signing
:: Commented out as most consumers don't use LDAP auth
:: reg add "HKLM\SYSTEM\CurrentControlSet\Services\LDAP" /v LDAPClientIntegrity /t REG_DWORD /d 1 /f
::
:: Prevent unauthenticated RPC connections
:: reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Rpc" /v RestrictRemoteClients /t REG_DWORD /d 1 /f
::
::#######################################################################
:: References
::#######################################################################
::
:: LLMNR
:: https://www.blackhillsinfosec.com/how-to-disable-llmnr-why-you-want-to/
::
:: Windows Defender References
:: ASR Rules https://www.darkoperator.com/blog/2017/11/11/windows-defender-exploit-guard-asr-rules-for-office
:: ASR and Exploit Guard https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-exploit-guard/attack-surface-reduction-exploit-guard
:: ASR Rules https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-atp/attack-surface-reduction
:: Easy methods to test rules https://demo.wd.microsoft.com/?ocid=cx-wddocs-testground
:: Resource on the rules and associated event IDs https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-atp/event-views
:: Defender sandboxing https://cloudblogs.microsoft.com/microsoftsecure/2018/10/26/windows-defender-antivirus-can-now-run-in-a-sandbox/
:: Defender exploit protection https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-exploit-guard/customize-exploit-protection
:: Application Guard https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-guard/install-wd-app-guard
:: Defender cmdline https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-antivirus/command-line-arguments-windows-defender-antivirus
::
:: General hardening references
:: LSA Protection https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-R2-and-2012/dn408187(v=ws.11)?redirectedfrom=MSDN
::
:: Microsoft Office References:
:: Disable DDE https://gist.github.com/wdormann/732bb88d9b5dd5a66c9f1e1498f31a1b
:: Disable macros https://decentsecurity.com/block-office-macros/
::
:: Debloating
:: https://blog.danic.net/how-windows-10-pro-installs-unwanted-apps-candy-crush-and-how-you-stop-it/
:: Frameworks and benchmarks
:: STIG https://www.stigviewer.com/stig/windows_10/
pause
@Skyrant

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@Skyrant Skyrant commented May 10, 2020

This is really great. It would be even greater if there was a script to reverse all the changes in case some cause issues. (or add the comands as commetns.)

@tportela1

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@tportela1 tportela1 commented May 10, 2020

This is fantastic. Thank you so much for putting this together.

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@christian-korneck christian-korneck commented May 10, 2020

some good stuff in there, thanks for sharing!

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@mspremium mspremium commented May 11, 2020

hi
i receive error on command :
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v RestrictRemoteSAM /t REG_SZ /d O:BAG:BAD:(A;;RC;;;BA) /f

error:
At line:1 char:99

  • ... t\Control\Lsa" /v RestrictRemoteSAM /t REG_SZ /d O:BAG:BAD:(A;;RC;;;B ...
  •                                                              ~
    

Missing closing ')' in expression.
At line:1 char:108

  • ... trol\Lsa" /v RestrictRemoteSAM /t REG_SZ /d O:BAG:BAD:(A;;RC;;;BA) /f
  •                                                                  ~
    

Unexpected token ')' in expression or statement.
+ CategoryInfo : ParserError: (:) [], ParentContainsErrorRecordException
+ FullyQualifiedErrorId : MissingEndParenthesisInExpression

can U guide me?

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@mackwage mackwage commented May 11, 2020

hi
i receive error on command :
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v RestrictRemoteSAM /t REG_SZ /d O:BAG:BAD:(A;;RC;;;BA) /f

error:
At line:1 char:99

  • ... t\Control\Lsa" /v RestrictRemoteSAM /t REG_SZ /d O:BAG:BAD:(A;;RC;;;B ...
  •                                                              ~
    

Missing closing ')' in expression.
At line:1 char:108

  • ... trol\Lsa" /v RestrictRemoteSAM /t REG_SZ /d O:BAG:BAD:(A;;RC;;;BA) /f
  •                                                                  ~
    

Unexpected token ')' in expression or statement.

  • CategoryInfo : ParserError: (:) [], ParentContainsErrorRecordException
  • FullyQualifiedErrorId : MissingEndParenthesisInExpression

can U guide me?

I am not able to replicate your issue. I copied and pasted the command from your comment and ran it in a VM and it ran successfully. Did you make any other modifications to the script?

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@mspremium mspremium commented May 12, 2020

hi
i receive error on command :
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v RestrictRemoteSAM /t REG_SZ /d O:BAG:BAD:(A;;RC;;;BA) /f
error:
At line:1 char:99

  • ... t\Control\Lsa" /v RestrictRemoteSAM /t REG_SZ /d O:BAG:BAD:(A;;RC;;;B ...
  •                                                              ~
    

Missing closing ')' in expression.
At line:1 char:108

  • ... trol\Lsa" /v RestrictRemoteSAM /t REG_SZ /d O:BAG:BAD:(A;;RC;;;BA) /f
  •                                                                  ~
    

Unexpected token ')' in expression or statement.

  • CategoryInfo : ParserError: (:) [], ParentContainsErrorRecordException
  • FullyQualifiedErrorId : MissingEndParenthesisInExpression

can U guide me?

I am not able to replicate your issue. I copied and pasted the command from your comment and ran it in a VM and it ran successfully. Did you make any other modifications to the script?

Hi dear
this is my Renault:

Powershell Error

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@mackwage mackwage commented May 12, 2020

Ah you're running it in PowerShell so that's the difference. It interprets various characters differently. You can run this command correctly either by running it in CMD or by placing the reg value into quotes. reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /v RestrictRemoteSAM /t REG_SZ /d "O:BAG:BAD:(A;;RC;;;BA)" /f

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@mspremium mspremium commented May 12, 2020

thanks a lot
My problem was solved.
Has this method been updated or are there newer techniques?

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@mackwage mackwage commented May 12, 2020

I'm sure sure I understand your question. Has what method been updated? If you're asking if I've made updates to my script then yes I've made several.

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@mspremium mspremium commented May 12, 2020

I'm sure sure I understand your question. Has what method been updated? If you're asking if I've made updates to my script then yes I've made several.

sorry for my English translate.
Have you prepared other items in this regard?

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@Huh-Cool Huh-Cool commented May 14, 2020

Having issues with Teams connecting to meetings since making most of these changes and my system restore points are not working to restore back...All other teams functionality seems to work fine. Anyone else experiencing this?

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@mackwage mackwage commented May 14, 2020

@Huh-Cool as in MS Teams? I hadn't seen other reports of this. Appreciate the info! I will do some testing with Teams and see what I can find.

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@Huh-Cool Huh-Cool commented May 14, 2020

Yes. MS Teams. It seems to try to connect to meetings. Fail and then tell me "Sorry, we couldn't connect you". I tried uninstalling/reinstalling MS Teams to no avail and am now manually rolling back some settings and culling the logs to figure out where the issue may be.

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@mackwage mackwage commented May 14, 2020

Does Teams call another binary to join meetings? If so, there could be a compatibility issue between that binary and the Exploit Guard settings

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@RobertLaffan RobertLaffan commented May 17, 2020

This killed my TightVNC ability between PC and mobile. I am rolling back step by step but nothing yet. Can anyone suggest which step might have caused the issue please?

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@RobertLaffan RobertLaffan commented May 17, 2020

This is really great. It would be even greater if there was a script to reverse all the changes in case some cause issues. (or add the comands as commetns.)

I second this!

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@mackwage mackwage commented May 17, 2020

This killed my TightVNC ability between PC and mobile. I am rolling back step by step but nothing yet. Can anyone suggest which step might have caused the issue please?

I haven't used VNC in many years and I don't know your specific configuration but my initial guesses would be around the connection itself? E.g. NTLMv2, schannel, etc.

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@RobertLaffan RobertLaffan commented May 17, 2020

Looks like this it the culprit:
netsh advfirewall set publicprofile firewallpolicy blockinboundalways,allowoutbound

I fixed it by resetting it with this command:
netsh advfirewall reset

Is there a way to enable the command and just open up for VNC only afterwards?

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@mackwage mackwage commented May 17, 2020

Looks like this it the culprit:
netsh advfirewall set publicprofile firewallpolicy blockinboundalways,allowoutbound

I fixed it by resetting it with this command:
netsh advfirewall reset

Is there a way to enable the command and just open up for VNC only afterwards?

Yeah. You have to explicitly set an open firewall rule. You could tie it to the TightVNC binary or the port number itself (or both). When I'm back at my computer, I can look up the command(s)

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@Huh-Cool Huh-Cool commented May 19, 2020

Back to my MS Teams issue. There were multiple issues and I lost patience and track of the changes after a while. Firewall was an issue at first because my home WiFi was set to a public profile, not private. Exploitguard didn't fix it. I think that it was related to transport layer and credential security issues (encryption methods, signing, secure channel, LmCompatibilityLevel, UseLogonCredential, AllowProtectedCreds, etc.)

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@goobstersec goobstersec commented Jun 2, 2020

Some really good stuff in this, thank you!

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@undergroundwires undergroundwires commented Aug 23, 2020

Thank you very much for putting time and effort into compiling and testing . This script and your references was one of the big inspiration when I built privacy.sexy (a GUI around the scripts) 🍻

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@kernel-sanders kernel-sanders commented Oct 13, 2020

The following line causes Windows Update to fail as well as other MS remote things (i.e. powerpoint template loading)

reg add "HKLM\SOFTWARE\Policies\Microsoft\Cryptography\Configuration\SSL\00010002" /v EccCurves /t REG_MULTI_SZ /d NistP384,NistP256 /f

Windows 10 1909 (OS Build 18363.1082)

Removing the EccCurves key and a reboot fixes the issue.

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@evilpilaf evilpilaf commented Oct 14, 2020

I ran into the same issue as @kernel-sanders, this key made many of my programs stop working, including docker, krisp, chocolatey, windows update, and many more.

All the errors in event viewer registered similar logs in event viewer:

Faulting application name: choco.exe, version: 0.10.5.0, time stamp: 0x58e7c338
Faulting module name: ntdll.dll, version: 10.0.19041.546, time stamp: 0x5b56177b
Exception code: 0xc0000409
Fault offset: 0x00000000000a1090
Faulting process ID: 0x1ef4
Faulting application start time: 0x01d6a233efda9233
Faulting application path: C:\ProgramData\chocolatey\bin\choco.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report ID: 24171f6f-1e0b-4a34-a103-ff9404943489
Faulting package full name: 
Faulting package-relative application ID: 

image

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@mackwage mackwage commented Oct 16, 2020

Thank you for the feedback! I will comment it out for now.

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