diff --git a/dependencies/vmprofiler b/dependencies/vmprofiler index d96f065..c746d04 160000 --- a/dependencies/vmprofiler +++ b/dependencies/vmprofiler @@ -1 +1 @@ -Subproject commit d96f065dd3a696f0b0ef790378e287f2356ecc8d +Subproject commit c746d04f1b0c0f8880b8fb792c7663dfafb3c980 diff --git a/samples.rar b/samples.rar new file mode 100644 index 0000000..61d42ca Binary files /dev/null and b/samples.rar differ diff --git a/src/main.cpp b/src/main.cpp index 91eeb0e..7583dd0 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -1,12 +1,31 @@ -#include #include #include #include #include +#include +#include #include #include +auto open_binary_file( const std::string &file, std::vector< uint8_t > &data ) -> bool +{ + std::ifstream fstr( file, std::ios::binary ); + + if ( !fstr.is_open() ) + return false; + + fstr.unsetf( std::ios::skipws ); + fstr.seekg( 0, std::ios::end ); + + const auto file_size = fstr.tellg(); + + fstr.seekg( NULL, std::ios::beg ); + data.reserve( static_cast< uint32_t >( file_size ) ); + data.insert( data.begin(), std::istream_iterator< uint8_t >( fstr ), std::istream_iterator< uint8_t >() ); + return true; +} + int __cdecl main( int argc, const char *argv[] ) { argparse::argument_parser_t parser( "vmprofiler-cli", "virtual machine information inspector" ); @@ -14,24 +33,10 @@ int __cdecl main( int argc, const char *argv[] ) parser.add_argument().names( { "--vmentry", "--entry" } ).description( "rva to push prior to a vm_entry" ); parser.add_argument().name( "--showhandlers" ).description( "show all vm handlers..." ); parser.add_argument().name( "--showhandler" ).description( "show a specific vm handler given its index..." ); - parser.add_argument().name( "--vmp2file" ).description( "path to .vmp2 file..." ); - parser.add_argument() - .name( "--indexes" ) - .description( "displays vm handler table indexes for a given vm handler name such as 'READQ', or 'WRITEQ'..." ); - parser.add_argument() - .name( "--scanfortables" ) - .description( "scans all executable sections for vm handler tables..." ); - parser.add_argument() - .name( "--showvirtinstrs" ) - .description( "show the virtual instructions of a specific virtual routine..." ); - parser.add_argument().name( "--showallrtns" ).description( "shows all information for all virtual routines..." ); - parser.add_argument() - .name( "--rtnaddr" ) - .description( "rva of the virtualized routine to apply another action upon such as --showallblocks..." ); + parser.add_argument().name( "--indexes" ).description( "displays vm handler table indexes for a given vm handler name such as 'READQ', or 'WRITEQ'..." ); parser.enable_help(); auto err = parser.parse( argc, argv ); - const auto umtils = xtils::um_t::get_instance(); if ( err ) { @@ -45,7 +50,7 @@ int __cdecl main( int argc, const char *argv[] ) return 0; } - if ( parser.exists( "bin" ) && parser.exists( "scanfortables" ) ) + if ( parser.exists( "bin" ) && parser.exists( "vmentry" ) ) { if ( !std::filesystem::exists( parser.get< std::string >( "bin" ) ) ) { @@ -53,41 +58,33 @@ int __cdecl main( int argc, const char *argv[] ) return -1; } - const auto module_base = reinterpret_cast< std::uintptr_t >( - LoadLibraryExA( parser.get< std::string >( "bin" ).c_str(), NULL, DONT_RESOLVE_DLL_REFERENCES ) ); - - auto result = vm::locate::all_handler_tables( module_base ); - std::vector< std::uint32_t > handler_table_rvas; - - std::for_each( result.begin(), result.end(), [ & ]( const vm::locate::vm_handler_table_info_t &data ) { - if ( std::find( handler_table_rvas.begin(), handler_table_rvas.end(), data.rva ) == - handler_table_rvas.end() ) - handler_table_rvas.push_back( data.rva ); - } ); - - std::printf( "{\n" ); - for ( auto &table_rva : handler_table_rvas ) - std::printf( "\t0x%x,\n", table_rva ); - std::printf( "}\n" ); - } - - if ( parser.exists( "bin" ) && parser.exists( "vmentry" ) ) - { - if ( !std::filesystem::exists( parser.get< std::string >( "bin" ) ) ) + std::vector module_data, tmp; + if(!open_binary_file(parser.get< std::string >( "bin" ), module_data)) { - std::printf( "> path to protected file is invalid... check your cli args...\n" ); + std::printf("[!] failed to open binary = %s\n", parser.get< std::string >( "bin" ).c_str()); return -1; } - const auto module_base = reinterpret_cast< std::uintptr_t >( - LoadLibraryExA( parser.get< std::string >( "bin" ).c_str(), NULL, DONT_RESOLVE_DLL_REFERENCES ) ); + auto img = reinterpret_cast*>(module_data.data()); + auto image_size = img->get_nt_headers()->optional_header.size_image; + tmp.resize(image_size); + std::memcpy(tmp.data(), module_data.data(), 0x1000); + std::for_each(img->get_nt_headers()->get_sections(), + img->get_nt_headers()->get_sections() + img->get_nt_headers()->file_header.num_sections, + [&](const auto& section_header) + { + std::memcpy(tmp.data() + section_header.virtual_address, + module_data.data() + section_header.ptr_raw_data, + section_header.size_raw_data); + }); + + const auto module_base = reinterpret_cast(tmp.data()); const auto vm_entry_rva = std::strtoull( parser.get< std::string >( "vmentry" ).c_str(), nullptr, 16 ); - const auto image_base = umtils->image_base( parser.get< std::string >( "bin" ).c_str() ); - const auto image_size = NT_HEADER( module_base )->OptionalHeader.SizeOfImage; + const auto image_base = img->get_nt_headers()->optional_header.image_base; - std::printf( "> module base = 0x%p, image base = 0x%p, image size = 0x%p\n", module_base, image_base, - image_size ); + std::printf( "> module base = %p, image base = %p, image size = %p, vm entry = 0x%x\n", module_base, image_base, + image_size, vm_entry_rva ); vm::ctx_t vmctx( module_base, image_base, image_size, vm_entry_rva ); @@ -177,96 +174,4 @@ int __cdecl main( int argc, const char *argv[] ) std::printf( "}\n" ); } } - - if ( !parser.exists( "vmp2file" ) ) - return {}; - - std::vector< std::uint8_t > vmp2file; - if ( !umtils->open_binary_file( parser.get< std::string >( "vmp2file" ), vmp2file ) ) - { - std::printf( "[!] failed to open vmp2 file...\n" ); - return -1; - } - - const auto file_header = reinterpret_cast< vmp2::v4::file_header * >( vmp2file.data() ); - - if ( file_header->version != vmp2::version_t::v4 ) - { - std::printf( "[!] invalid vmp2 file version... this build uses v4...\n" ); - return -1; - } - - auto first_rtn = reinterpret_cast< vmp2::v4::rtn_t * >( reinterpret_cast< std::uintptr_t >( file_header ) + - file_header->rtn_offset ); - - if ( parser.exists( "showallrtns" ) ) - { - for ( auto [ rtn_block, rtn_idx ] = std::pair{ first_rtn, 0ull }; rtn_idx < file_header->rtn_count; - ++rtn_idx, rtn_block = reinterpret_cast< vmp2::v4::rtn_t * >( - reinterpret_cast< std::uintptr_t >( rtn_block ) + rtn_block->size ) ) - { - std::printf( "[rtn_0x%p (vm enter rva = 0x%x)] number of code blocks = %d\n", - rtn_block->code_blocks[ 0 ].vip_begin, rtn_block->vm_enter_offset, - rtn_block->code_block_count ); - - for ( auto [ code_block, block_idx ] = std::pair{ &rtn_block->code_blocks[ 0 ], 0ull }; - block_idx < rtn_block->code_block_count; - ++block_idx, code_block = reinterpret_cast< vmp2::v4::code_block_t * >( - reinterpret_cast< std::uintptr_t >( code_block ) + code_block->next_block_offset ) ) - { - std::printf( " [blk_0x%p] number of virtual instructions = %d\n", code_block->vip_begin, - code_block->vinstr_count ); - } - } - } - - if ( parser.exists( "showvirtinstrs" ) && parser.exists( "rtnaddr" ) ) - { - auto rtn_addr = std::stoull( parser.get< std::string >( "rtnaddr" ).c_str(), nullptr, 16 ); - for ( auto [ rtn_block, rtn_idx ] = std::pair{ first_rtn, 0ull }; rtn_idx < file_header->rtn_count; - ++rtn_idx, rtn_block = reinterpret_cast< vmp2::v4::rtn_t * >( - reinterpret_cast< std::uintptr_t >( rtn_block ) + rtn_block->size ) ) - { - if ( rtn_block->code_blocks[ 0 ].vip_begin == rtn_addr ) - { - for ( auto [ code_block, block_idx ] = std::pair{ &rtn_block->code_blocks[ 0 ], 0ull }; - block_idx < rtn_block->code_block_count; - ++block_idx, code_block = reinterpret_cast< vmp2::v4::code_block_t * >( - reinterpret_cast< std::uintptr_t >( code_block ) + - code_block->next_block_offset ) ) - { - std::printf( "[blk_0x%p] number of virtual instructions = %d\n", code_block->vip_begin, - code_block->vinstr_count ); - - std::printf( "> -----------------------------------------------------------------------\n" ); - std::printf( "> opcode | virtual instructions | virtual instruction pointer\n" ); - std::printf( "> -----------------------------------------------------------------------\n" ); - - auto block_vinstrs = reinterpret_cast< vm::instrs::virt_instr_t * >( - reinterpret_cast< std::uintptr_t >( code_block ) + sizeof vmp2::v4::code_block_t + - ( code_block->num_block_addrs * 8 ) ); - - for ( auto idx = 0u; idx < code_block->vinstr_count; ++idx ) - { - const auto vinstr = &block_vinstrs[ idx ]; - const auto vm_profile = vm::handler::get_profile( vinstr->mnemonic_t ); - if ( vinstr->operand.has_imm ) - { - std::printf( "> %-6x | %-15s %-15p | 0x%p\n", vinstr->opcode, - vm_profile ? vm_profile->name : "UNK", vinstr->operand.imm.u, - ABS_TO_IMG( vinstr->trace_data.vip, file_header->module_base, - file_header->image_base ) ); - } - else - { - std::printf( "> %-6x | %-32s | 0x%p\n", vinstr->opcode, - vm_profile ? vm_profile->name : "UNK", - ABS_TO_IMG( vinstr->trace_data.vip, file_header->module_base, - file_header->image_base ) ); - } - } - } - } - } - } } \ No newline at end of file