|
|
|
@ -87,6 +87,9 @@ namespace vm
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( !cc_block )
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
code_blocks.push_back( code_block );
|
|
|
|
|
|
|
|
|
|
// code_blocks.size() will continue to grow as all branches are traced...
|
|
|
|
@ -149,6 +152,9 @@ namespace vm
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( !cc_block )
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
// push back new block that has been traced...
|
|
|
|
|
code_blocks.push_back( branch_block );
|
|
|
|
|
|
|
|
|
@ -205,6 +211,9 @@ namespace vm
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( !cc_block )
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
// push back new block that has been traced...
|
|
|
|
|
code_blocks.push_back( branch_block );
|
|
|
|
|
break;
|
|
|
|
@ -262,6 +271,9 @@ namespace vm
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( !cc_block )
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
// push back new block that has been traced...
|
|
|
|
|
code_blocks.push_back( branch_block );
|
|
|
|
|
}
|
|
|
|
@ -372,10 +384,9 @@ namespace vm
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( instr.mnemonic == ZYDIS_MNEMONIC_INT1 || instr.mnemonic == ZYDIS_MNEMONIC_INVALID )
|
|
|
|
|
if ( instr.mnemonic == ZYDIS_MNEMONIC_INVALID )
|
|
|
|
|
{
|
|
|
|
|
obj->cc_block->code_block.jcc.has_jcc = false;
|
|
|
|
|
obj->cc_block->code_block.jcc.type = vm::instrs::jcc_type::none;
|
|
|
|
|
obj->cc_block = nullptr;
|
|
|
|
|
uc_emu_stop( uc );
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
@ -427,7 +438,7 @@ namespace vm
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
const auto &vm_handler = obj->g_vm_ctx->vm_handlers[ vm_handler_table_idx ];
|
|
|
|
|
auto &vm_handler = obj->g_vm_ctx->vm_handlers[ vm_handler_table_idx ];
|
|
|
|
|
|
|
|
|
|
if ( ( err = obj->create_entry( &vinstr_entry ) ) )
|
|
|
|
|
{
|
|
|
|
@ -448,6 +459,7 @@ namespace vm
|
|
|
|
|
std::printf( "> vm handler index (%d) does not match vm handler address (%p)...\n", vm_handler_table_idx,
|
|
|
|
|
vm_handler_addr );
|
|
|
|
|
|
|
|
|
|
obj->cc_block = nullptr;
|
|
|
|
|
if ( ( err = uc_emu_stop( uc ) ) )
|
|
|
|
|
{
|
|
|
|
|
std::printf( "> failed to stop emulation, exiting... reason = %d\n", err );
|
|
|
|
@ -457,6 +469,23 @@ namespace vm
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( !vm_handler.profile )
|
|
|
|
|
{
|
|
|
|
|
obj->cc_block = nullptr;
|
|
|
|
|
std::printf( "> virtual machine handler (0x%p): \n\n",
|
|
|
|
|
( vm_handler_addr - obj->g_vm_ctx->module_base ) + obj->g_vm_ctx->image_base );
|
|
|
|
|
|
|
|
|
|
vm::util::print( vm_handler.instrs );
|
|
|
|
|
std::printf( "\n\n" );
|
|
|
|
|
|
|
|
|
|
if ( ( err = uc_emu_stop( uc ) ) )
|
|
|
|
|
{
|
|
|
|
|
std::printf( "> failed to stop emulation, exiting... reason = %d\n", err );
|
|
|
|
|
exit( 0 );
|
|
|
|
|
}
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
auto vinstr = vm::instrs::get( *obj->g_vm_ctx, vinstr_entry );
|
|
|
|
|
|
|
|
|
|
if ( !vinstr.has_value() )
|
|
|
|
|