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@ -1,7 +1,7 @@
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#include "qvm_inspector.h"
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qvm_inspector::qvm_inspector( QWidget *parent ) : QMainWindow( parent ), file_header( nullptr ), g_vm_ctx( nullptr )
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{
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qvm_inspector::qvm_inspector(QWidget *parent)
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: QMainWindow(parent), file_header(nullptr), g_vm_ctx(nullptr) {
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ui.setupUi(this);
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ui.virt_instrs->setColumnWidth(0, 125);
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ui.virt_instrs->setColumnWidth(1, 150);
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@ -13,38 +13,32 @@ qvm_inspector::qvm_inspector( QWidget *parent ) : QMainWindow( parent ), file_he
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connect(ui.action_close, &QAction::triggered, this, &qvm_inspector::on_close);
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}
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void qvm_inspector::on_close()
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{
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exit( 0 );
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}
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void qvm_inspector::on_close() { exit(0); }
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void qvm_inspector::on_open()
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{
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if ( file_header )
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free( file_header );
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void qvm_inspector::on_open() {
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if (file_header) free(file_header);
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file_header = nullptr;
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img_base = 0u, module_base = 0u;
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auto file_path = QFileDialog::getOpenFileName(
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this, tr( "open vmp2 file" ), std::filesystem::current_path().string().c_str(), tr( "vmp2 file (*.vmp2)" ) );
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this, tr("open vmp2 file"),
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std::filesystem::current_path().string().c_str(),
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tr("vmp2 file (*.vmp2)"));
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if ( file_path.isEmpty() )
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{
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if (file_path.isEmpty()) {
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dbg_msg("invalid vmp2 file... no file selected...");
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return;
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}
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if ( !std::filesystem::exists( file_path.toStdString() ) )
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{
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if (!std::filesystem::exists(file_path.toStdString())) {
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dbg_msg("vmp2 file does not exist...");
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return;
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}
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const auto file_size = std::filesystem::file_size(file_path.toStdString());
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if ( !file_size )
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{
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if (!file_size) {
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dbg_msg("invalid vmp2 file size...");
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return;
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}
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@ -52,38 +46,32 @@ void qvm_inspector::on_open()
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QFile open_file(file_path);
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file_header = reinterpret_cast<vmp2::v4::file_header *>(malloc(file_size));
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if ( !open_file.open( QIODevice::ReadOnly ) )
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{
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if (!open_file.open(QIODevice::ReadOnly)) {
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dbg_msg("failed to open vmp2 file...");
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return;
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}
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memcpy(file_header, open_file.readAll().data(), file_size);
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if ( !init_data() )
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{
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if (!init_data()) {
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dbg_msg("failed to init vmp2 file data...");
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return;
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}
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}
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void qvm_inspector::dbg_print( QString dbg_output )
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{
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void qvm_inspector::dbg_print(QString dbg_output) {
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ui.dbg_output_window->appendPlainText(dbg_output);
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}
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void qvm_inspector::dbg_msg( QString dbg_output )
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{
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void qvm_inspector::dbg_msg(QString dbg_output) {
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QMessageBox msg_box;
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msg_box.setText(dbg_output);
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msg_box.exec();
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dbg_print(dbg_output);
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}
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bool qvm_inspector::init_data()
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{
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if ( file_header->magic != VMP_MAGIC )
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{
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bool qvm_inspector::init_data() {
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if (file_header->magic != VMP_MAGIC) {
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dbg_msg("invalid magic bytes for vmp2 file...");
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return false;
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@ -91,9 +79,9 @@ bool qvm_inspector::init_data()
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dbg_print("valid magic bytes for vmp2 file...");
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if ( file_header->version != vmp2::version_t::v4 )
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{
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dbg_msg( "invalid vmp2 file version... "
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if (file_header->version != vmp2::version_t::v4) {
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dbg_msg(
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"invalid vmp2 file version... "
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"this vminspector is compiled for version 4...\n");
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return false;
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@ -101,10 +89,10 @@ bool qvm_inspector::init_data()
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img_base = file_header->image_base;
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img_size = file_header->module_size;
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module_base = reinterpret_cast< std::uintptr_t >( file_header ) + file_header->module_offset;
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module_base = reinterpret_cast<std::uintptr_t>(file_header) +
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file_header->module_offset;
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if ( !serialize_vmp2( virt_rtns ) )
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{
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if (!serialize_vmp2(virt_rtns)) {
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dbg_msg("failed to serialize vmp2 file format...\n");
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return false;
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}
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@ -113,20 +101,23 @@ bool qvm_inspector::init_data()
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return true;
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}
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void qvm_inspector::update_ui()
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{
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void qvm_inspector::update_ui() {
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ui.virtual_machine_enters->clear();
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for ( auto &[ rtn_rva, rtn_blks ] : virt_rtns )
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{
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for (auto &[rtn_rva, rtn_blks] : virt_rtns) {
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auto new_item = new QTreeWidgetItem();
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new_item->setText( 0, QString( "rtn_%1" ).arg( rtn_rva + file_header->image_base, 0, 16 ) );
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new_item->setText( 1, QString( "%1" ).arg( rtn_rva + file_header->image_base, 0, 16 ) );
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new_item->setText(
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0, QString("rtn_%1").arg(rtn_rva + file_header->image_base, 0, 16));
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new_item->setText(
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1, QString("%1").arg(rtn_rva + file_header->image_base, 0, 16));
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new_item->setText(2, QString("%1").arg(rtn_blks.size()));
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new_item->setData(0, Qt::UserRole, QVariant(rtn_rva));
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std::for_each( rtn_blks.begin(), rtn_blks.end(), [ & ]( vm::instrs::code_block_t &code_blk ) {
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std::for_each(
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rtn_blks.begin(), rtn_blks.end(),
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[&](vm::instrs::code_block_t &code_blk) {
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auto new_child = new QTreeWidgetItem();
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new_child->setText( 0, QString( "blk_%1" ).arg( code_blk.vip_begin, 0, 16 ) );
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new_child->setText(0,
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QString("blk_%1").arg(code_blk.vip_begin, 0, 16));
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new_child->setText(1, QString("%1").arg(code_blk.vip_begin, 0, 16));
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new_child->setText(2, QString("%1").arg(code_blk.vinstrs.size()));
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new_item->addChild(new_child);
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@ -136,30 +127,30 @@ void qvm_inspector::update_ui()
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}
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}
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bool qvm_inspector::serialize_vmp2( std::vector< rtn_data_t > &virt_rtns )
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{
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if ( file_header->version != vmp2::version_t::v4 )
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{
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bool qvm_inspector::serialize_vmp2(std::vector<rtn_data_t> &virt_rtns) {
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if (file_header->version != vmp2::version_t::v4) {
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std::printf("[!] invalid vmp2 file version... this build uses v3...\n");
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return false;
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}
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auto first_rtn = reinterpret_cast< vmp2::v4::rtn_t * >( reinterpret_cast< std::uintptr_t >( file_header ) +
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file_header->rtn_offset );
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auto first_rtn = reinterpret_cast<vmp2::v4::rtn_t *>(
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reinterpret_cast<std::uintptr_t>(file_header) + file_header->rtn_offset);
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for ( auto [ rtn_block, rtn_idx ] = std::pair{ first_rtn, 0ull }; rtn_idx < file_header->rtn_count;
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for (auto [rtn_block, rtn_idx] = std::pair{first_rtn, 0ull};
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rtn_idx < file_header->rtn_count;
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++rtn_idx, rtn_block = reinterpret_cast<vmp2::v4::rtn_t *>(
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reinterpret_cast< std::uintptr_t >( rtn_block ) + rtn_block->size ) )
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{
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reinterpret_cast<std::uintptr_t>(rtn_block) +
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rtn_block->size)) {
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virt_rtns.push_back({rtn_block->vm_enter_offset, {}});
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for ( auto [ code_block, block_idx ] = std::pair{ &rtn_block->code_blocks[ 0 ], 0ull };
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for (auto [code_block, block_idx] =
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std::pair{&rtn_block->code_blocks[0], 0ull};
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block_idx < rtn_block->code_block_count;
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++block_idx, code_block = reinterpret_cast<vmp2::v4::code_block_t *>(
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reinterpret_cast< std::uintptr_t >( code_block ) + code_block->next_block_offset ) )
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{
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reinterpret_cast<std::uintptr_t>(code_block) +
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code_block->next_block_offset)) {
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auto block_vinstrs = reinterpret_cast<vm::instrs::virt_instr_t *>(
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reinterpret_cast< std::uintptr_t >( code_block ) + sizeof vmp2::v4::code_block_t +
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( code_block->num_block_addrs * 8 ) );
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reinterpret_cast<std::uintptr_t>(code_block) +
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sizeof(vmp2::v4::code_block_t) + (code_block->num_block_addrs * 8));
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vm::instrs::code_block_t _code_block{code_block->vip_begin};
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_code_block.jcc.has_jcc = code_block->has_jcc;
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@ -178,153 +169,167 @@ bool qvm_inspector::serialize_vmp2( std::vector< rtn_data_t > &virt_rtns )
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return true;
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}
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void qvm_inspector::update_virtual_instructions( std::uintptr_t rtn_addr, std::uintptr_t blk_addr,
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QTreeWidgetItem *parent )
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{
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auto _rtn = std::find_if( virt_rtns.begin(), virt_rtns.end(),
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void qvm_inspector::update_virtual_instructions(std::uintptr_t rtn_addr,
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std::uintptr_t blk_addr,
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QTreeWidgetItem *parent) {
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auto _rtn = std::find_if(
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virt_rtns.begin(), virt_rtns.end(),
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[&](rtn_data_t &rtn) -> bool { return rtn.rtn_rva == rtn_addr; });
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if ( _rtn == virt_rtns.end() )
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return;
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if (_rtn == virt_rtns.end()) return;
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auto code_blk = blk_addr ? std::find_if( _rtn->rtn_blks.begin(), _rtn->rtn_blks.end(),
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auto code_blk =
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blk_addr ? std::find_if(
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_rtn->rtn_blks.begin(), _rtn->rtn_blks.end(),
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[&](const vm::instrs::code_block_t &code_block) -> bool {
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return code_block.vip_begin == blk_addr;
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})
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: _rtn->rtn_blks.begin();
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if ( code_blk == _rtn->rtn_blks.end() )
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return;
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if (code_blk == _rtn->rtn_blks.end()) return;
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if ( std::find( code_block_addrs.begin(), code_block_addrs.end(), code_blk->vip_begin ) != code_block_addrs.end() )
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if (std::find(code_block_addrs.begin(), code_block_addrs.end(),
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code_blk->vip_begin) != code_block_addrs.end())
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return;
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code_block_addrs.push_back(code_blk->vip_begin);
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for ( auto &vinstr : code_blk->vinstrs )
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{
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for (auto &vinstr : code_blk->vinstrs) {
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const auto profile = vm::handler::get_profile(vinstr.mnemonic_t);
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auto virt_instr_entry = new QTreeWidgetItem();
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// virtual instruction image base'ed rva... (column 1)...
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virt_instr_entry->setText(
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0, QString("0x%1").arg(QString::number(
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( vinstr.trace_data.vip - file_header->module_base ) + file_header->image_base, 16 ) ) );
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(vinstr.trace_data.vip - file_header->module_base) +
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file_header->image_base,
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16)));
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// virtual instruction operand bytes... (column 2)...
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QString operand_bytes;
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operand_bytes.append(QString("%1").arg(vinstr.opcode, 0, 16));
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// if virt instruction has an imm... grab its bytes...
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if ( vinstr.operand.has_imm )
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{
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if (vinstr.operand.has_imm) {
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operand_bytes.append(" - ");
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for (auto _idx = 0u; _idx < vinstr.operand.imm.imm_size / 8; ++_idx)
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operand_bytes.append(QString("%1 ").arg(
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reinterpret_cast< const std::uint8_t * >( &vinstr.operand.imm.u )[ _idx ], 0, 16 ) );
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reinterpret_cast<const std::uint8_t *>(&vinstr.operand.imm.u)[_idx],
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0, 16));
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}
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virt_instr_entry->setText(1, operand_bytes);
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// virtual instruction string, includes imm... (colume 3)...
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QString decoded_instr(
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QString( "%1" ).arg( profile ? profile->name : QString( "UNK(%1)" ).arg( vinstr.opcode, 0, 16 ) ) );
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QString decoded_instr(QString("%1").arg(
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profile ? profile->name
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: QString("UNK(%1)").arg(vinstr.opcode, 0, 16)));
|
|
|
|
|
|
|
|
|
|
if ( vinstr.operand.has_imm ) // if there is a second operand (imm) put its value...
|
|
|
|
|
if (vinstr.operand
|
|
|
|
|
.has_imm) // if there is a second operand (imm) put its value...
|
|
|
|
|
decoded_instr.append(QString(" %1").arg(vinstr.operand.imm.u, 0, 16));
|
|
|
|
|
|
|
|
|
|
virt_instr_entry->setText(2, decoded_instr);
|
|
|
|
|
|
|
|
|
|
// add comments to the virtual instruction... (colume 4)...
|
|
|
|
|
if ( vinstr.mnemonic_t == vm::handler::LREGQ || vinstr.mnemonic_t == vm::handler::SREGQ )
|
|
|
|
|
if (vinstr.mnemonic_t == vm::handler::LREGQ ||
|
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|
|
|
vinstr.mnemonic_t == vm::handler::SREGQ)
|
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|
|
|
virt_instr_entry->setText(
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|
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|
3, QString( "; vreg%1" ).arg( vinstr.operand.imm.u ? ( vinstr.operand.imm.u / 8 ) : 0u ) );
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|
|
|
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|
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|
if ( vinstr.mnemonic_t == vm::handler::JMP )
|
|
|
|
|
{
|
|
|
|
|
switch ( code_blk->jcc.type )
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|
|
|
|
{
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|
|
|
|
case vm::instrs::jcc_type::branching:
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|
|
|
|
{
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|
|
|
|
virt_instr_entry->setText( 3, QString( "; { 0x%1, 0x%2 }" )
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|
|
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|
3, QString("; vreg%1")
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|
|
|
.arg(vinstr.operand.imm.u ? (vinstr.operand.imm.u / 8) : 0u));
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|
|
|
|
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|
|
|
if (vinstr.mnemonic_t == vm::handler::JMP) {
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|
|
|
|
switch (code_blk->jcc.type) {
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|
|
|
|
case vm::instrs::jcc_type::branching: {
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|
|
|
|
virt_instr_entry->setText(
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|
|
|
|
3, QString("; { 0x%1, 0x%2 }")
|
|
|
|
|
.arg(code_blk->jcc.block_addr[0], 0, 16)
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|
|
|
.arg(code_blk->jcc.block_addr[1], 0, 16));
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|
|
|
|
|
|
|
|
auto entry_rva = g_vm_ctx->vm_handlers[ vinstr.opcode ].address - module_base;
|
|
|
|
|
auto branch_entry1 = new QTreeWidgetItem(), branch_entry2 = new QTreeWidgetItem();
|
|
|
|
|
auto entry_rva =
|
|
|
|
|
g_vm_ctx->vm_handlers[vinstr.opcode].address - module_base;
|
|
|
|
|
auto branch_entry1 = new QTreeWidgetItem(),
|
|
|
|
|
branch_entry2 = new QTreeWidgetItem();
|
|
|
|
|
const auto block1_addr = code_blk->jcc.block_addr[0];
|
|
|
|
|
const auto block2_addr = code_blk->jcc.block_addr[1];
|
|
|
|
|
|
|
|
|
|
branch_entry1->setText(0, QString("0x%1").arg(block1_addr, 0, 16));
|
|
|
|
|
branch_entry1->setText( 3, QString( "; blk_0x%1" ).arg( block1_addr, 0, 16 ) );
|
|
|
|
|
branch_entry1->setText(3,
|
|
|
|
|
QString("; blk_0x%1").arg(block1_addr, 0, 16));
|
|
|
|
|
|
|
|
|
|
branch_entry2->setText(0, QString("0x%1").arg(block2_addr, 0, 16));
|
|
|
|
|
branch_entry2->setText( 3, QString( "; blk_0x%1" ).arg( block2_addr, 0, 16 ) );
|
|
|
|
|
branch_entry2->setText(3,
|
|
|
|
|
QString("; blk_0x%1").arg(block2_addr, 0, 16));
|
|
|
|
|
|
|
|
|
|
if ( g_vm_ctx )
|
|
|
|
|
delete g_vm_ctx;
|
|
|
|
|
if (g_vm_ctx) delete g_vm_ctx;
|
|
|
|
|
|
|
|
|
|
if ( !( g_vm_ctx = new vm::ctx_t( module_base, img_base, img_size, entry_rva ) )->init() )
|
|
|
|
|
{
|
|
|
|
|
if (!(g_vm_ctx =
|
|
|
|
|
new vm::ctx_t(module_base, img_base, img_size, entry_rva))
|
|
|
|
|
->init()) {
|
|
|
|
|
dbg_print(QString("> failed to init vm::ctx_t for jmp at = %1...")
|
|
|
|
|
.arg(QString::number(code_blk->vip_begin, 16)));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
update_virtual_instructions( rtn_addr, code_blk->jcc.block_addr[ 0 ], branch_entry1 );
|
|
|
|
|
update_virtual_instructions(rtn_addr, code_blk->jcc.block_addr[0],
|
|
|
|
|
branch_entry1);
|
|
|
|
|
|
|
|
|
|
if ( g_vm_ctx )
|
|
|
|
|
delete g_vm_ctx;
|
|
|
|
|
if (g_vm_ctx) delete g_vm_ctx;
|
|
|
|
|
|
|
|
|
|
if ( !( g_vm_ctx = new vm::ctx_t( module_base, img_base, img_size, entry_rva ) )->init() )
|
|
|
|
|
{
|
|
|
|
|
if (!(g_vm_ctx =
|
|
|
|
|
new vm::ctx_t(module_base, img_base, img_size, entry_rva))
|
|
|
|
|
->init()) {
|
|
|
|
|
dbg_print(QString("> failed to init vm::ctx_t for jmp at = %1...")
|
|
|
|
|
.arg(QString::number(code_blk->vip_begin, 16)));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
update_virtual_instructions( rtn_addr, code_blk->jcc.block_addr[ 1 ], branch_entry2 );
|
|
|
|
|
update_virtual_instructions(rtn_addr, code_blk->jcc.block_addr[1],
|
|
|
|
|
branch_entry2);
|
|
|
|
|
virt_instr_entry->addChildren({branch_entry1, branch_entry2});
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
case vm::instrs::jcc_type::absolute:
|
|
|
|
|
{
|
|
|
|
|
auto entry_rva = g_vm_ctx->vm_handlers[ vinstr.opcode ].address - module_base;
|
|
|
|
|
virt_instr_entry->setText( 3, QString( "; { 0x%1 }" ).arg( code_blk->jcc.block_addr[ 0 ], 0, 16 ) );
|
|
|
|
|
case vm::instrs::jcc_type::absolute: {
|
|
|
|
|
auto entry_rva =
|
|
|
|
|
g_vm_ctx->vm_handlers[vinstr.opcode].address - module_base;
|
|
|
|
|
virt_instr_entry->setText(
|
|
|
|
|
3, QString("; { 0x%1 }").arg(code_blk->jcc.block_addr[0], 0, 16));
|
|
|
|
|
|
|
|
|
|
if ( g_vm_ctx )
|
|
|
|
|
delete g_vm_ctx;
|
|
|
|
|
if (g_vm_ctx) delete g_vm_ctx;
|
|
|
|
|
|
|
|
|
|
if ( !( g_vm_ctx = new vm::ctx_t( module_base, img_base, img_size, entry_rva ) )->init() )
|
|
|
|
|
{
|
|
|
|
|
if (!(g_vm_ctx =
|
|
|
|
|
new vm::ctx_t(module_base, img_base, img_size, entry_rva))
|
|
|
|
|
->init()) {
|
|
|
|
|
dbg_print(QString("> failed to init vm::ctx_t for jmp at = %1...")
|
|
|
|
|
.arg(QString::number(code_blk->vip_begin, 16)));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
auto branch_entry1 = new QTreeWidgetItem();
|
|
|
|
|
branch_entry1->setText( 0, QString( "0x%1" ).arg( code_blk->jcc.block_addr[ 0 ], 0, 16 ) );
|
|
|
|
|
branch_entry1->setText( 3, QString( "; blk_0x%1" ).arg( code_blk->jcc.block_addr[ 0 ], 0, 16 ) );
|
|
|
|
|
update_virtual_instructions( rtn_addr, code_blk->jcc.block_addr[ 0 ], branch_entry1 );
|
|
|
|
|
branch_entry1->setText(
|
|
|
|
|
0, QString("0x%1").arg(code_blk->jcc.block_addr[0], 0, 16));
|
|
|
|
|
branch_entry1->setText(
|
|
|
|
|
3, QString("; blk_0x%1").arg(code_blk->jcc.block_addr[0], 0, 16));
|
|
|
|
|
update_virtual_instructions(rtn_addr, code_blk->jcc.block_addr[0],
|
|
|
|
|
branch_entry1);
|
|
|
|
|
virt_instr_entry->addChild(branch_entry1);
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
case vm::instrs::jcc_type::switch_case:
|
|
|
|
|
{
|
|
|
|
|
auto entry_rva = g_vm_ctx->vm_handlers[ vinstr.opcode ].address - module_base;
|
|
|
|
|
case vm::instrs::jcc_type::switch_case: {
|
|
|
|
|
auto entry_rva =
|
|
|
|
|
g_vm_ctx->vm_handlers[vinstr.opcode].address - module_base;
|
|
|
|
|
|
|
|
|
|
if ( g_vm_ctx )
|
|
|
|
|
delete g_vm_ctx;
|
|
|
|
|
if (g_vm_ctx) delete g_vm_ctx;
|
|
|
|
|
|
|
|
|
|
if ( !( g_vm_ctx = new vm::ctx_t( module_base, img_base, img_size, entry_rva ) )->init() )
|
|
|
|
|
{
|
|
|
|
|
if (!(g_vm_ctx =
|
|
|
|
|
new vm::ctx_t(module_base, img_base, img_size, entry_rva))
|
|
|
|
|
->init()) {
|
|
|
|
|
dbg_print(QString("> failed to init vm::ctx_t for jmp at = %1...")
|
|
|
|
|
.arg(QString::number(code_blk->vip_begin, 16)));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for ( auto branch_addr : code_blk->jcc.block_addr )
|
|
|
|
|
{
|
|
|
|
|
for (auto branch_addr : code_blk->jcc.block_addr) {
|
|
|
|
|
virt_instr_entry->setText(3, QString("; switch case"));
|
|
|
|
|
|
|
|
|
|
auto branch_entry = new QTreeWidgetItem();
|
|
|
|
@ -343,6 +348,7 @@ void qvm_inspector::update_virtual_instructions( std::uintptr_t rtn_addr, std::u
|
|
|
|
|
QVariant var;
|
|
|
|
|
var.setValue(vinstr);
|
|
|
|
|
virt_instr_entry->setData(3, Qt::UserRole, var);
|
|
|
|
|
parent ? parent->addChild( virt_instr_entry ) : ui.virt_instrs->addTopLevelItem( virt_instr_entry );
|
|
|
|
|
parent ? parent->addChild(virt_instr_entry)
|
|
|
|
|
: ui.virt_instrs->addTopLevelItem(virt_instr_entry);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|