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75 lines
2.4 KiB
75 lines
2.4 KiB
#include <Windows.h>
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#include <cli-parser.hpp>
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#include <devirt_t.hpp>
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#include <devirt_utils.hpp>
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#include <xtils.hpp>
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int main( int argc, const char *argv[] )
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{
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argparse::argument_parser_t parser( "vmdevirt", "virtual instruction pseudo code generator" );
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parser.add_argument().name( "--vmp2file" ).required( true ).description( "path to .vmp2 file..." );
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parser.enable_help();
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auto err = parser.parse( argc, argv );
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if ( err )
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{
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std::cout << err << std::endl;
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return -1;
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}
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if ( parser.exists( "help" ) )
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{
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parser.print_help();
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return 0;
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}
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std::vector< std::uint8_t > vmp2file;
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const auto umtils = xtils::um_t::get_instance();
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if ( !umtils->open_binary_file( parser.get< std::string >( "vmp2file" ), vmp2file ) )
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{
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std::printf( "[!] failed to open vmp2 file...\n" );
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return -1;
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}
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const auto file_header = reinterpret_cast< vmp2::v4::file_header * >( vmp2file.data() );
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std::vector< std::pair< std::uint32_t, std::vector< vm::instrs::code_block_t > > > virt_rtns;
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if ( !devirt::util::serialize_vmp2( virt_rtns, vmp2file ) )
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{
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std::printf( "> failed to serialize vmp2 file...\n" );
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return false;
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}
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llvm::LLVMContext llvm_ctx;
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llvm::Module llvm_module( "VMProtect 2 Devirtualization", llvm_ctx );
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std::vector< std::uint8_t > compiled_obj;
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vm::devirt_t vmp_devirt( &llvm_ctx, &llvm_module );
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for ( auto &[ vm_enter_offset, vmp2_code_blocks ] : virt_rtns )
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{
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if ( !vmp_devirt.lift( vm_enter_offset + file_header->image_base, vmp2_code_blocks ) )
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{
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std::printf( "[!] failed to lift rtn_0x%p, please review the console...\n",
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vm_enter_offset + file_header->image_base );
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return -1;
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}
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std::printf( "> lifted rtn_0x%p, number of blocks = %d\n", vm_enter_offset + file_header->image_base,
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vmp2_code_blocks.size() );
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}
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llvm::LLVMInitializeX86TargetInfo();
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llvm::LLVMInitializeX86Target();
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llvm::LLVMInitializeX86TargetMC();
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llvm::LLVMInitializeX86AsmParser();
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llvm::LLVMInitializeX86AsmPrinter();
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vmp_devirt.compile( compiled_obj );
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std::printf( "> compiled all routines... compiled obj size = %d\n", compiled_obj.size() );
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std::ofstream( "devirt.o", std::ios::binary )
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.write( reinterpret_cast< const char * >( compiled_obj.data() ), compiled_obj.size() );
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} |