Dev See merge request vmp2/vmassembler!2merge-requests/3/merge v1.2
_xeroxz
3 years ago
commit
2da8022aec
@ -0,0 +1,155 @@
|
||||
<?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>16.0</VCProjectVersion>
|
||||
<Keyword>Win32Proj</Keyword>
|
||||
<ProjectGuid>{1dc5c971-7d10-488d-a4bf-8702fa804559}</ProjectGuid>
|
||||
<RootNamespace>demo</RootNamespace>
|
||||
<WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
|
||||
</PropertyGroup>
|
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
|
||||
<ConfigurationType>Application</ConfigurationType>
|
||||
<UseDebugLibraries>true</UseDebugLibraries>
|
||||
<PlatformToolset>v142</PlatformToolset>
|
||||
<CharacterSet>Unicode</CharacterSet>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
|
||||
<ConfigurationType>Application</ConfigurationType>
|
||||
<UseDebugLibraries>false</UseDebugLibraries>
|
||||
<PlatformToolset>v142</PlatformToolset>
|
||||
<WholeProgramOptimization>true</WholeProgramOptimization>
|
||||
<CharacterSet>Unicode</CharacterSet>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
|
||||
<ConfigurationType>Application</ConfigurationType>
|
||||
<UseDebugLibraries>true</UseDebugLibraries>
|
||||
<PlatformToolset>v142</PlatformToolset>
|
||||
<CharacterSet>Unicode</CharacterSet>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
|
||||
<ConfigurationType>Application</ConfigurationType>
|
||||
<UseDebugLibraries>false</UseDebugLibraries>
|
||||
<PlatformToolset>ClangCL</PlatformToolset>
|
||||
<WholeProgramOptimization>true</WholeProgramOptimization>
|
||||
<CharacterSet>Unicode</CharacterSet>
|
||||
</PropertyGroup>
|
||||
<Import Project="$(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" />
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
|
||||
<LinkIncremental>true</LinkIncremental>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
|
||||
<LinkIncremental>false</LinkIncremental>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
|
||||
<LinkIncremental>true</LinkIncremental>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
|
||||
<LinkIncremental>false</LinkIncremental>
|
||||
</PropertyGroup>
|
||||
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
|
||||
<ClCompile>
|
||||
<WarningLevel>Level3</WarningLevel>
|
||||
<SDLCheck>true</SDLCheck>
|
||||
<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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||||
<ConformanceMode>true</ConformanceMode>
|
||||
</ClCompile>
|
||||
<Link>
|
||||
<SubSystem>Console</SubSystem>
|
||||
<GenerateDebugInformation>true</GenerateDebugInformation>
|
||||
</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>
|
||||
</Link>
|
||||
</ItemDefinitionGroup>
|
||||
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
|
||||
<ClCompile>
|
||||
<WarningLevel>Level3</WarningLevel>
|
||||
<SDLCheck>true</SDLCheck>
|
||||
<PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
|
||||
<ConformanceMode>true</ConformanceMode>
|
||||
</ClCompile>
|
||||
<Link>
|
||||
<SubSystem>Console</SubSystem>
|
||||
<GenerateDebugInformation>true</GenerateDebugInformation>
|
||||
</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>
|
||||
<LanguageStandard>stdcpp17</LanguageStandard>
|
||||
<Optimization>Disabled</Optimization>
|
||||
</ClCompile>
|
||||
<Link>
|
||||
<SubSystem>Console</SubSystem>
|
||||
<EnableCOMDATFolding>true</EnableCOMDATFolding>
|
||||
<OptimizeReferences>true</OptimizeReferences>
|
||||
<GenerateDebugInformation>DebugFull</GenerateDebugInformation>
|
||||
</Link>
|
||||
</ItemDefinitionGroup>
|
||||
<ItemGroup>
|
||||
<ClCompile Include="main.cpp" />
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClInclude Include="test.hpp" />
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<None Include="..\.clang-format" />
|
||||
</ItemGroup>
|
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
|
||||
<ImportGroup Label="ExtensionTargets">
|
||||
</ImportGroup>
|
||||
</Project>
|
||||
@ -0,0 +1,28 @@
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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>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClCompile Include="main.cpp">
|
||||
<Filter>Source Files</Filter>
|
||||
</ClCompile>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClInclude Include="test.hpp">
|
||||
<Filter>Header Files</Filter>
|
||||
</ClInclude>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<None Include="..\.clang-format">
|
||||
<Filter>Header Files</Filter>
|
||||
</None>
|
||||
</ItemGroup>
|
||||
</Project>
|
||||
@ -0,0 +1,9 @@
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#include <iostream>
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#include "test.hpp"
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int main()
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{
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const auto hello = vm::call< vm::calls::get_hello, vm::u64 >();
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const auto world = vm::call< vm::calls::get_world, vm::u64 >();
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std::printf( "> %s %s\n", ( char * )&hello, (char*)&world );
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}
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File diff suppressed because it is too large
Load Diff
@ -1 +1 @@
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Subproject commit e58c23c40e13528f5d9b84feb7e23b62a886ed5a
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Subproject commit 0f6ba9bad30d67f25f01b6c1e872077efdff61d4
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@ -0,0 +1,344 @@
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#pragma once
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#include <vmprofiler.hpp>
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#include <fstream>
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#include "compiler.h"
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namespace gen
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||||
{
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||||
template< typename... Args > std::string string_format( const std::string &format, Args... args )
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||||
{
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int size_s = std::snprintf( nullptr, 0, format.c_str(), args... ) + 1;
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auto size = static_cast< size_t >( size_s );
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auto buf = std::make_unique< char[] >( size );
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std::snprintf( buf.get(), size, format.c_str(), args... );
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return std::string( buf.get(), buf.get() + size - 1 );
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||||
}
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||||
|
||||
inline void open_binary_file( const std::string &file, std::vector< uint8_t > &data )
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||||
{
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std::ifstream fstr( file, std::ios::binary );
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fstr.unsetf( std::ios::skipws );
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fstr.seekg( 0, std::ios::end );
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const auto file_size = fstr.tellg();
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fstr.seekg( NULL, std::ios::beg );
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data.reserve( static_cast< uint32_t >( file_size ) );
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data.insert( data.begin(), std::istream_iterator< uint8_t >( fstr ), std::istream_iterator< uint8_t >() );
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}
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||||
inline std::string code( std::vector< vm::compiled_label_data > &labels, std::string image_path, vm::ctx_t vmctx )
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||||
{
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std::string result, raw_file_array;
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||||
std::vector< std::uint8_t > raw_file;
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open_binary_file( image_path, raw_file );
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for ( auto idx = 0u; idx < raw_file.size(); ++idx )
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raw_file_array.append( string_format( "0x%x, ", raw_file[ idx ] ) );
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result.append( "#pragma once\n"
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||||
"#pragma section( \".xmp2\" )\n"
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||||
"#pragma comment( linker, \"/section:.xmp2,RWE\" ) \n\n" );
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result.append( "namespace vm\n"
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"{\n" );
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||||
|
||||
result.append( R"( using u8 = unsigned char;
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using s8 = signed char;
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||||
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||||
using u16 = unsigned short;
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||||
using s16 = signed short;
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||||
|
||||
using u32 = unsigned int;
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||||
using s32 = signed int;
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||||
|
||||
using u64 = unsigned long long;
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||||
using s64 = signed long long;
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||||
using __vmcall_t = void* (*)(...);
|
||||
|
||||
constexpr u8 IMAGE_DIRECTORY_ENTRY_BASERELOC = 5;
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||||
constexpr u8 IMAGE_REL_BASED_ABSOLUTE = 0;
|
||||
constexpr u8 IMAGE_REL_BASED_DIR64 = 10;
|
||||
|
||||
typedef struct _IMAGE_DOS_HEADER
|
||||
{
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||||
/* 0x0000 */ unsigned short e_magic;
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||||
/* 0x0002 */ unsigned short e_cblp;
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||||
/* 0x0004 */ unsigned short e_cp;
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||||
/* 0x0006 */ unsigned short e_crlc;
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/* 0x0008 */ unsigned short e_cparhdr;
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||||
/* 0x000a */ unsigned short e_minalloc;
|
||||
/* 0x000c */ unsigned short e_maxalloc;
|
||||
/* 0x000e */ unsigned short e_ss;
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||||
/* 0x0010 */ unsigned short e_sp;
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||||
/* 0x0012 */ unsigned short e_csum;
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||||
/* 0x0014 */ unsigned short e_ip;
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||||
/* 0x0016 */ unsigned short e_cs;
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/* 0x0018 */ unsigned short e_lfarlc;
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/* 0x001a */ unsigned short e_ovno;
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||||
/* 0x001c */ unsigned short e_res[ 4 ];
|
||||
/* 0x0024 */ unsigned short e_oemid;
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/* 0x0026 */ unsigned short e_oeminfo;
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||||
/* 0x0028 */ unsigned short e_res2[ 10 ];
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||||
/* 0x003c */ long e_lfanew;
|
||||
} IMAGE_DOS_HEADER, *PIMAGE_DOS_HEADER; /* size: 0x0040 */
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|
||||
typedef struct _IMAGE_FILE_HEADER
|
||||
{
|
||||
/* 0x0000 */ unsigned short Machine;
|
||||
/* 0x0002 */ unsigned short NumberOfSections;
|
||||
/* 0x0004 */ unsigned long TimeDateStamp;
|
||||
/* 0x0008 */ unsigned long PointerToSymbolTable;
|
||||
/* 0x000c */ unsigned long NumberOfSymbols;
|
||||
/* 0x0010 */ unsigned short SizeOfOptionalHeader;
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||||
/* 0x0012 */ unsigned short Characteristics;
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||||
} IMAGE_FILE_HEADER, *PIMAGE_FILE_HEADER; /* size: 0x0014 */
|
||||
|
||||
typedef struct _IMAGE_DATA_DIRECTORY
|
||||
{
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||||
/* 0x0000 */ unsigned long VirtualAddress;
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/* 0x0004 */ unsigned long Size;
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||||
} IMAGE_DATA_DIRECTORY, *PIMAGE_DATA_DIRECTORY; /* size: 0x0008 */
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||||
|
||||
typedef struct _IMAGE_OPTIONAL_HEADER64
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{
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/* 0x0000 */ unsigned short Magic;
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||||
/* 0x0002 */ unsigned char MajorLinkerVersion;
|
||||
/* 0x0003 */ unsigned char MinorLinkerVersion;
|
||||
/* 0x0004 */ unsigned long SizeOfCode;
|
||||
/* 0x0008 */ unsigned long SizeOfInitializedData;
|
||||
/* 0x000c */ unsigned long SizeOfUninitializedData;
|
||||
/* 0x0010 */ unsigned long AddressOfEntryPoint;
|
||||
/* 0x0014 */ unsigned long BaseOfCode;
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||||
/* 0x0018 */ unsigned __int64 ImageBase;
|
||||
/* 0x0020 */ unsigned long SectionAlignment;
|
||||
/* 0x0024 */ unsigned long FileAlignment;
|
||||
/* 0x0028 */ unsigned short MajorOperatingSystemVersion;
|
||||
/* 0x002a */ unsigned short MinorOperatingSystemVersion;
|
||||
/* 0x002c */ unsigned short MajorImageVersion;
|
||||
/* 0x002e */ unsigned short MinorImageVersion;
|
||||
/* 0x0030 */ unsigned short MajorSubsystemVersion;
|
||||
/* 0x0032 */ unsigned short MinorSubsystemVersion;
|
||||
/* 0x0034 */ unsigned long Win32VersionValue;
|
||||
/* 0x0038 */ unsigned long SizeOfImage;
|
||||
/* 0x003c */ unsigned long SizeOfHeaders;
|
||||
/* 0x0040 */ unsigned long CheckSum;
|
||||
/* 0x0044 */ unsigned short Subsystem;
|
||||
/* 0x0046 */ unsigned short DllCharacteristics;
|
||||
/* 0x0048 */ unsigned __int64 SizeOfStackReserve;
|
||||
/* 0x0050 */ unsigned __int64 SizeOfStackCommit;
|
||||
/* 0x0058 */ unsigned __int64 SizeOfHeapReserve;
|
||||
/* 0x0060 */ unsigned __int64 SizeOfHeapCommit;
|
||||
/* 0x0068 */ unsigned long LoaderFlags;
|
||||
/* 0x006c */ unsigned long NumberOfRvaAndSizes;
|
||||
/* 0x0070 */ struct _IMAGE_DATA_DIRECTORY DataDirectory[ 16 ];
|
||||
} IMAGE_OPTIONAL_HEADER64, *PIMAGE_OPTIONAL_HEADER64; /* size: 0x00f0 */
|
||||
|
||||
typedef struct _IMAGE_NT_HEADERS64
|
||||
{
|
||||
/* 0x0000 */ unsigned long Signature;
|
||||
/* 0x0004 */ struct _IMAGE_FILE_HEADER FileHeader;
|
||||
/* 0x0018 */ struct _IMAGE_OPTIONAL_HEADER64 OptionalHeader;
|
||||
} IMAGE_NT_HEADERS64, *PIMAGE_NT_HEADERS64; /* size: 0x0108 */
|
||||
|
||||
typedef struct _IMAGE_SECTION_HEADER
|
||||
{
|
||||
/* 0x0000 */ unsigned char Name[ 8 ];
|
||||
union
|
||||
{
|
||||
union
|
||||
{
|
||||
/* 0x0008 */ unsigned long PhysicalAddress;
|
||||
/* 0x0008 */ unsigned long VirtualSize;
|
||||
}; /* size: 0x0004 */
|
||||
} /* size: 0x0004 */ Misc;
|
||||
/* 0x000c */ unsigned long VirtualAddress;
|
||||
/* 0x0010 */ unsigned long SizeOfRawData;
|
||||
/* 0x0014 */ unsigned long PointerToRawData;
|
||||
/* 0x0018 */ unsigned long PointerToRelocations;
|
||||
/* 0x001c */ unsigned long PointerToLinenumbers;
|
||||
/* 0x0020 */ unsigned short NumberOfRelocations;
|
||||
/* 0x0022 */ unsigned short NumberOfLinenumbers;
|
||||
/* 0x0024 */ unsigned long Characteristics;
|
||||
} IMAGE_SECTION_HEADER, *PIMAGE_SECTION_HEADER; /* size: 0x0028 */
|
||||
|
||||
typedef struct _IMAGE_BASE_RELOCATION
|
||||
{
|
||||
unsigned int VirtualAddress;
|
||||
unsigned int SizeOfBlock;
|
||||
} IMAGE_BASE_RELOCATION, *PIMAGE_BASE_RELOCATION;)" );
|
||||
|
||||
result.append( "\n\n\ttemplate < class T, class U > struct _pair_t\n"
|
||||
"\t{\n"
|
||||
"\t\tT first;\n"
|
||||
"\t\tU second;\n"
|
||||
"\t};\n\n" );
|
||||
|
||||
result.append( string_format( "\tconstexpr auto entry_rva = 0x%x;\n\n", vmctx.vm_entry_rva ) );
|
||||
|
||||
result.append( "\tenum class calls : u32\n"
|
||||
"\t{\n" );
|
||||
|
||||
for ( auto idx = 0u; idx < labels.size(); ++idx )
|
||||
result.append( string_format( "\t\t%s = 0x%x,\n", labels[ idx ].label_name, labels[ idx ].enc_alloc_rva ) );
|
||||
|
||||
result.append( "\t};\n\n" );
|
||||
result.append( string_format( "\tinline _pair_t< u8, calls > call_map[%d] = \n"
|
||||
"\t{\n",
|
||||
labels.size() ) );
|
||||
|
||||
for ( auto idx = 0u; idx < labels.size(); ++idx )
|
||||
result.append( string_format( "\t\t{ %d, calls::%s },\n", idx, labels[ idx ].label_name.c_str() ) );
|
||||
|
||||
result.append( "\t};\n\n" );
|
||||
result.append( string_format( "\t__declspec(align(1)) struct _gen_data\n"
|
||||
"\t{\n"
|
||||
"\t\tu8 bin[%d] =\n"
|
||||
"\t\t{\n"
|
||||
"\t\t\t%s\n",
|
||||
raw_file.size(), raw_file_array.c_str() ) );
|
||||
|
||||
result.append( "\t\t};\n\n" );
|
||||
result.append( string_format( "\t\tu8 map_area[0x%x];\n\n", vmctx.image_size ) );
|
||||
|
||||
for ( auto &label : labels )
|
||||
{
|
||||
result.append(
|
||||
string_format( "\t\tu8 __%s_vinstrs[%d] =\n", label.label_name.c_str(), label.vinstrs.size() ) );
|
||||
result.append( "\t\t{\n\t\t\t" );
|
||||
for ( auto &byte : label.vinstrs )
|
||||
result.append( string_format( "0x%x, ", byte ) );
|
||||
result.append( "\n\t\t};\n\n" );
|
||||
}
|
||||
|
||||
result.append( string_format( "\t\tu8 __vmcall_shell_code[%d][15] =\n"
|
||||
"\t\t{\n",
|
||||
labels.size() ) );
|
||||
|
||||
for ( auto idx = 0u; idx < labels.size(); ++idx )
|
||||
{
|
||||
std::string jmp_code;
|
||||
|
||||
// two push instructions...
|
||||
for ( auto i = 0u; i < 2; ++i )
|
||||
{
|
||||
jmp_code.append( "0x68, " ); // push opcode...
|
||||
|
||||
for ( auto _idx = 0u; _idx < 4; ++_idx )
|
||||
jmp_code.append( "0x0, " );
|
||||
}
|
||||
|
||||
// one jmp instruction...
|
||||
jmp_code.append( "0xE9, " );
|
||||
for ( auto i = 0u; i < 4; ++i )
|
||||
jmp_code.append( "0x0, " );
|
||||
|
||||
result.append( string_format( "\t\t\t{ %s },\n", jmp_code.c_str() ) );
|
||||
}
|
||||
|
||||
result.append( "\t\t};\n\n" );
|
||||
result.append( R"( bool init()
|
||||
{
|
||||
static const auto _memcpy = []( void *dest, const void *src, size_t len ) -> void * {
|
||||
char *d = ( char * )dest;
|
||||
const char *s = ( char * )src;
|
||||
while ( len-- )
|
||||
*d++ = *s++;
|
||||
|
||||
return dest;
|
||||
};
|
||||
|
||||
const auto dos_header = reinterpret_cast< IMAGE_DOS_HEADER * >( bin );
|
||||
const auto nt_headers = reinterpret_cast< PIMAGE_NT_HEADERS64 >( bin + dos_header->e_lfanew );
|
||||
|
||||
_memcpy( map_area, bin, nt_headers->OptionalHeader.SizeOfHeaders );
|
||||
|
||||
auto sections = reinterpret_cast< PIMAGE_SECTION_HEADER >( ( u8 * )&nt_headers->OptionalHeader +
|
||||
nt_headers->FileHeader.SizeOfOptionalHeader );
|
||||
|
||||
// map sections...
|
||||
for ( u32 i = 0; i < nt_headers->FileHeader.NumberOfSections; ++i )
|
||||
{
|
||||
PIMAGE_SECTION_HEADER section = §ions[ i ];
|
||||
|
||||
_memcpy( ( void * )( map_area + section->VirtualAddress ),
|
||||
( void * )( bin + section->PointerToRawData ), section->SizeOfRawData );
|
||||
}
|
||||
|
||||
// handle relocations...
|
||||
const auto reloc_dir = &nt_headers->OptionalHeader.DataDirectory[ IMAGE_DIRECTORY_ENTRY_BASERELOC ];
|
||||
|
||||
if ( reloc_dir->VirtualAddress )
|
||||
{
|
||||
auto reloc = reinterpret_cast< IMAGE_BASE_RELOCATION * >( map_area + reloc_dir->VirtualAddress );
|
||||
|
||||
for ( auto current_size = 0u; current_size < reloc_dir->Size; )
|
||||
{
|
||||
u32 reloc_count = ( reloc->SizeOfBlock - sizeof( IMAGE_BASE_RELOCATION ) ) / sizeof( u16 );
|
||||
u16 *reloc_data = ( u16 * )( ( u8 * )reloc + sizeof( IMAGE_BASE_RELOCATION ) );
|
||||
u8 *reloc_base = map_area + reloc->VirtualAddress;
|
||||
|
||||
for ( auto idx = 0; idx < reloc_count; ++idx, ++reloc_data )
|
||||
{
|
||||
u16 data = *reloc_data;
|
||||
u16 type = data >> 12;
|
||||
u16 offset = data & 0xFFF;
|
||||
|
||||
switch ( type )
|
||||
{
|
||||
case IMAGE_REL_BASED_ABSOLUTE:
|
||||
break;
|
||||
case IMAGE_REL_BASED_DIR64:
|
||||
{
|
||||
u64 *rva = ( u64 * )( reloc_base + offset );
|
||||
*rva = ( u64 )( map_area + ( *rva - nt_headers->OptionalHeader.ImageBase ) );
|
||||
break;
|
||||
}
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
current_size += reloc->SizeOfBlock;
|
||||
reloc = ( IMAGE_BASE_RELOCATION * )reloc_data;
|
||||
}
|
||||
}
|
||||
|
||||
// fix shellcode up...
|
||||
for ( auto idx = 0u; idx < ( sizeof( __vmcall_shell_code ) / 15 ); ++idx )
|
||||
{
|
||||
// first push encrypted rva value...
|
||||
*reinterpret_cast< u32 * >( &__vmcall_shell_code[ idx ][ 1 ] ) =
|
||||
static_cast< u32 >( call_map[ idx ].second );
|
||||
|
||||
// second push encrypted rva value...
|
||||
*reinterpret_cast< u32 * >( &__vmcall_shell_code[ idx ][ 6 ] ) =
|
||||
static_cast< u32 >( call_map[ idx ].second );
|
||||
|
||||
// signed rip relative rva to vm entry...
|
||||
*reinterpret_cast< u32 * >( &__vmcall_shell_code[ idx ][ 11 ] ) = reinterpret_cast< s32 >(
|
||||
( map_area - ( reinterpret_cast< u64 >( &__vmcall_shell_code[ idx ] ) + 15 ) ) + entry_rva );
|
||||
}
|
||||
|
||||
return true; // only a bool so i can use static/call init only once...
|
||||
})" );
|
||||
|
||||
result.append( "\n\t};\n\n" );
|
||||
result.append( "\t__declspec(allocate(\".xmp2\")) inline _gen_data gen_data;\n\n" );
|
||||
|
||||
result.append( R"( template < calls e_call, class T, class ... Ts > auto call(const Ts... args) -> T
|
||||
{
|
||||
static auto __init_result = gen_data.init();
|
||||
|
||||
__vmcall_t vmcall = nullptr;
|
||||
for ( auto idx = 0u; idx < sizeof( call_map ) / sizeof( _pair_t< u8, calls > ); ++idx )
|
||||
if ( call_map[ idx ].second == e_call )
|
||||
vmcall = reinterpret_cast< __vmcall_t >( &gen_data.__vmcall_shell_code[ idx ] );
|
||||
|
||||
return reinterpret_cast< T >( vmcall( args... ) );
|
||||
})" );
|
||||
|
||||
result.append( "\n}" );
|
||||
return result;
|
||||
}
|
||||
} // namespace gen
|
||||
@ -1,22 +0,0 @@
|
||||
#pragma once
|
||||
#include <cstdint>
|
||||
#define VASM_MAGIC 'MSAV'
|
||||
|
||||
namespace vmasm
|
||||
{
|
||||
enum class version_t
|
||||
{
|
||||
v1
|
||||
};
|
||||
|
||||
struct file_header_t
|
||||
{
|
||||
std::uint32_t magic; // VASM
|
||||
version_t version;
|
||||
std::uint64_t epoch_time;
|
||||
std::uint64_t alloc_rva;
|
||||
std::uint64_t encrypted_rva;
|
||||
std::uint32_t vasm_size;
|
||||
std::uint32_t vasm_offset;
|
||||
};
|
||||
} // namespace vmasm
|
||||
Loading…
Reference in new issue