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ioncodes committed Nov 28, 2024
1 parent c46012d commit 3e5b9d5
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31 changes: 31 additions & 0 deletions SilentLoad.sln
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Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.11.35327.3
MinimumVisualStudioVersion = 10.0.40219.1
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "SilentLoad", "SilentLoad\SilentLoad.vcxproj", "{A5D2F9C8-0DC2-4A2D-B72F-2FD5FF740043}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|x64 = Debug|x64
Debug|x86 = Debug|x86
Release|x64 = Release|x64
Release|x86 = Release|x86
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{A5D2F9C8-0DC2-4A2D-B72F-2FD5FF740043}.Debug|x64.ActiveCfg = Debug|x64
{A5D2F9C8-0DC2-4A2D-B72F-2FD5FF740043}.Debug|x64.Build.0 = Debug|x64
{A5D2F9C8-0DC2-4A2D-B72F-2FD5FF740043}.Debug|x86.ActiveCfg = Debug|Win32
{A5D2F9C8-0DC2-4A2D-B72F-2FD5FF740043}.Debug|x86.Build.0 = Debug|Win32
{A5D2F9C8-0DC2-4A2D-B72F-2FD5FF740043}.Release|x64.ActiveCfg = Release|x64
{A5D2F9C8-0DC2-4A2D-B72F-2FD5FF740043}.Release|x64.Build.0 = Release|x64
{A5D2F9C8-0DC2-4A2D-B72F-2FD5FF740043}.Release|x86.ActiveCfg = Release|Win32
{A5D2F9C8-0DC2-4A2D-B72F-2FD5FF740043}.Release|x86.Build.0 = Release|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {FB2054AB-CC9E-4B15-B438-B4E89375DCD1}
EndGlobalSection
EndGlobal
140 changes: 140 additions & 0 deletions SilentLoad/SilentLoad.vcxproj
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<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Debug|Win32">
<Configuration>Debug</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|Win32">
<Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Debug|x64">
<Configuration>Debug</Configuration>
<Platform>x64</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|x64">
<Configuration>Release</Configuration>
<Platform>x64</Platform>
</ProjectConfiguration>
</ItemGroup>
<PropertyGroup Label="Globals">
<VCProjectVersion>17.0</VCProjectVersion>
<Keyword>Win32Proj</Keyword>
<ProjectGuid>{a5d2f9c8-0dc2-4a2d-b72f-2fd5ff740043}</ProjectGuid>
<RootNamespace>SilentLoad</RootNamespace>
<WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<PlatformToolset>v143</PlatformToolset>
<CharacterSet>Unicode</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<PlatformToolset>v143</PlatformToolset>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>Unicode</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<PlatformToolset>v143</PlatformToolset>
<CharacterSet>Unicode</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<PlatformToolset>v143</PlatformToolset>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>Unicode</CharacterSet>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
<ImportGroup Label="ExtensionSettings">
</ImportGroup>
<ImportGroup Label="Shared">
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<PropertyGroup Label="UserMacros" />
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>ntdll.lib;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>ntdll.lib;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
<LanguageStandard_C>stdc17</LanguageStandard_C>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>ntdll.lib;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<SDLCheck>true</SDLCheck>
<PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<ConformanceMode>true</ConformanceMode>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>ntdll.lib;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemGroup>
<ClCompile Include="main.cpp" />
</ItemGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
</Project>
22 changes: 22 additions & 0 deletions SilentLoad/SilentLoad.vcxproj.filters
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<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup>
<Filter Include="Source Files">
<UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
<Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
</Filter>
<Filter Include="Header Files">
<UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
<Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
</Filter>
<Filter Include="Resource Files">
<UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
<Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
</Filter>
</ItemGroup>
<ItemGroup>
<ClCompile Include="main.cpp">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
</Project>
162 changes: 162 additions & 0 deletions SilentLoad/main.cpp
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#include <Windows.h>
#include <stdio.h>
#include <winternl.h>
#include <strsafe.h>

#define SERVICE_NAME L"SilentLoad"
#define DRIVER_PATH L"\\??\\C:\\Windows\\System32\\drivers\\SilentLoad.sys"

typedef NTSTATUS(NTAPI* _NtLoadDriver)(PUNICODE_STRING DriverServiceName);

static _NtLoadDriver NtLoadDriver = NULL;

static bool GrantPrivilege(LPCTSTR privilege)
{
HANDLE Token;
TOKEN_PRIVILEGES TokenPrivileges;
LUID Luid;

if (!LookupPrivilegeValueW(NULL, SE_LOAD_DRIVER_NAME, &Luid))
return false;

if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &Token))
return false;

TokenPrivileges = { 0 };
TokenPrivileges.PrivilegeCount = 1;
TokenPrivileges.Privileges[0].Luid = Luid;
TokenPrivileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;

if (!AdjustTokenPrivileges(Token, FALSE, &TokenPrivileges, sizeof(TOKEN_PRIVILEGES), NULL, NULL)
|| GetLastError() == ERROR_NOT_ALL_ASSIGNED)
{
CloseHandle(Token);
return false;
}

CloseHandle(Token);

return true;
}

static _NtLoadDriver ResolveNtLoadDriver()
{
HMODULE Handle;

Handle = GetModuleHandleW(L"ntdll.dll");
if (!Handle)
return NULL;

return (_NtLoadDriver)GetProcAddress(Handle, "NtLoadDriver");
}

static bool AddService(LPCWSTR ServiceName, LPCWSTR DriverPath)
{
HKEY ServicesKey;
DWORD ImagePathLength;
DWORD ServiceType;
DWORD ServiceStartType;
DWORD ServiceErrorControl;
DWORD ServiceNameLength;

if (!NT_SUCCESS(RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"SYSTEM\\CurrentControlSet\\Services", 0, KEY_ALL_ACCESS, &ServicesKey)))
goto Error;

if (!NT_SUCCESS(RegCreateKeyW(ServicesKey, ServiceName, &ServicesKey)))
goto Error;

ImagePathLength = (wcslen(DriverPath) + 1) * sizeof(WCHAR);
if (!NT_SUCCESS(RegSetValueExW(ServicesKey, L"ImagePath", 0, REG_EXPAND_SZ, (LPBYTE)DriverPath, ImagePathLength)))
goto Error;

ServiceType = SERVICE_KERNEL_DRIVER;
if (!NT_SUCCESS(RegSetValueExW(ServicesKey, L"Type", 0, REG_DWORD, (LPBYTE)&ServiceType, sizeof(ServiceType))))
goto Error;

ServiceStartType = SERVICE_DEMAND_START;
if (!NT_SUCCESS(RegSetValueExW(ServicesKey, L"Start", 0, REG_DWORD, (LPBYTE)&ServiceStartType, sizeof(ServiceStartType))))
goto Error;

ServiceErrorControl = SERVICE_ERROR_NORMAL;
if (!NT_SUCCESS(RegSetValueExW(ServicesKey, L"ErrorControl", 0, REG_DWORD, (LPBYTE)&ServiceErrorControl, sizeof(ServiceErrorControl))))
goto Error;

ServiceNameLength = (wcslen(ServiceName) + 1) * sizeof(WCHAR);
if (!NT_SUCCESS(RegSetValueExW(ServicesKey, L"DisplayName", 0, REG_SZ, (LPBYTE)ServiceName, ServiceNameLength)))
goto Error;

RegCloseKey(ServicesKey);

return true;

Error:
RegCloseKey(ServicesKey);

return false;
}

static bool RemoveService(LPCWSTR ServiceName)
{
WCHAR RegistryPath[MAX_PATH];

StringCchPrintfW(RegistryPath, ARRAYSIZE(RegistryPath), L"SYSTEM\\CurrentControlSet\\Services\\%s", ServiceName);

return NT_SUCCESS(RegDeleteTreeW(HKEY_LOCAL_MACHINE, RegistryPath));
}

static bool LoadDriver(LPCWSTR ServiceName)
{
UNICODE_STRING DriverServiceName;
WCHAR Buffer[MAX_PATH];
NTSTATUS Status;

StringCchPrintfW(Buffer, ARRAYSIZE(Buffer), L"\\Registry\\Machine\\System\\CurrentControlSet\\Services\\%s", ServiceName);
RtlInitUnicodeString(&DriverServiceName, Buffer);

Status = NtLoadDriver(&DriverServiceName);
if (Status == 0xC000010E)
{
printf("Driver already loaded\n");
return true;
}

return NT_SUCCESS(Status);

}

int main(int argc, char* argv[])
{
if (!GrantPrivilege(SE_LOAD_DRIVER_NAME))
{
printf("Failed to grant privilege\n");
goto End;
}

NtLoadDriver = ResolveNtLoadDriver();
if (!NtLoadDriver)
{
printf("Failed to resolve NtLoadDriver\n");
goto End;
}

printf("NtLoadDriver: 0x%p\n", NtLoadDriver);

if (!AddService(SERVICE_NAME, DRIVER_PATH))
{
printf("Failed to add service\n");
goto End;
}

if (!LoadDriver(SERVICE_NAME))
{
printf("Failed to load driver\n");
goto End;
}


End:
if (!RemoveService(SERVICE_NAME))
printf("Failed to remove service\n");

return 0;
}

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