Code Virtulizer can help developers protect their sensitive code areas against Reverse Engineering because it is a powerful code-obfuscation system.
Code Virtualizer will convert your original code (Intel x86 instructions) into Virtual Opcodes that will only be understood by an internal Virtual Machine. Those Virtual Opcodes and the Virtual Machine itself are unique for every protected application, avoiding a general attack over Code Virtualizer.
Code Virtualizer can protect your sensitive code areas in any x32 and x64 native PE files (like executable files/EXEs, system services, DLLs , OCXs , ActiveX controls, screen savers and device drivers).
When an application is being created, the Compiler will compile the application source code into several object files made of machine language code. Afterward, the object files are linked together to create the final executable.
When an attacker tries to crack a compiled application, he will use a decompiler tool which will decompile the machine language code into a more comprehensive code (like assembly code or a higher programming language), doing his research over the decompiled code.
When the attacker has a good knowledge of the target application, he can modify the compiled application to alter its behavior. For example, the attacker could bypass the routine that checks for the trial period in an application and make it run forever, or, even worse, cause the application to behave as if it was registered.
Code virtualization consists of the transformation of binary code from a specific machine into a different binary code that is understood by another machine. That is, the instruction set from a specific machine is converted into a new instruction set which is understood by a different machine. The following picture represents the transformation from a block of Intel x86 instructions into a new instruction set for another machine (specifically a RISC 32-bit CPU):
Code Virtualizer can generate multiple types of virtual machines with a different instruction set for each one. This means that a specific block of Intel x86 instructions can be converted into different instruction set for each machine, preventing an attacker from recognizing any generated virtual opcode after the transformation from x86 instructions. The following picture represents how a block of Intel x86 instructions is converted into different kinds of virtual opcodes, which could be emulated by different virtual machines.
When an attacker tries to decompile a block of code that was protected by Code Virtualizer, he will not find the original x86 instructions. Instead, he will find a completely new instruction set which is not recognized by him or any other special decompiler. This will force the attacker to go through the extremely hard work of identifying how each opcode is executed and how the specific virtual machine works for each protected application. Code Virtualizer totally obfuscates the execution of the virtual opcodes and the study of each unique virtual machine in order to prevent someone from studying how the virtual opcodes are executed.
Code Virtualizer is a powerful technology that can prevent someone from inspecting your sensitive code, such as your routines that validate an entered serial key for registering your application. Also, Code Virtualizer slightly modifies the PE header of the protected application, meaning you could put a compressor or other software protector on top of Code Virtualizer with no problems.
If you are a device driver developer and felt neglected when there was no solution to protect your device drivers, Code Virtualizer offers you the same technology to do so (for either 32-bit and 64-bit drivers) in the same way as your applications and DLLs.
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