VxLang

Contents
- Blog
- What is VxLang?
- Supported File Formats
- Preview
- Tutorial
  - Usage & Guide-Code
  - Precautions
- How to get the full version

What is VxLang?

VxLang is a project designed to prevent reverse-engineering behaviors such as static or dynamic analysis, file tampering, and unauthorized access to memory by attackers.

The VxLang project currently targets x86-64 system and .NET binaries, native binary files for the Microsoft Windows operating system, including executables with the ".exe" extension, dynamic link library files with the ".dll" extension, and kernel driver files with the ".sys" extension. (The types of target binaries supported by vxlang will be expanded in future updates).

Added beta code for the ELF file format.
- The beta version only supports general code-flattening.
- Beta features require users to specify target code.
- VxLang recommends using the -fno-pic option in ELF 32bit binary builds.

Supported File Formats

Windows EXE/DLL		Windows Kernel Drive
Obfuscator		Obfuscator
Virtualizer		Virtualizer
Protector		Protector

Windows UEFI Modules		Windows .NET
Obfuscator		Obfuscator
Virtualizer		Virtualizer
Protector		Protector

Linux ELF
Obfuscator
Virtualizer
Protector

Virtualization Preview

; x86-64 asm
cmp         qword ptr [rsp + 0x20], rax
jae         0x140001bf5
mov         rax, qword ptr [rsp + 0x20]
movzx       eax, byte ptr [rsp + rax + 0x50]

; to v-asm
movi   exr_0, ${RANDOM}
movi   r7, ${RANDOM}
xorr   r7, exr_0
movi   exr_0, ${RANDOM}
movi   exr_1, ${RANDOM}
xorr   exr_0, exr_1
mulr   r7, exr_0
addr   r6, r7
movi   exr_0, ${RANDOM}
movi   r7, ${RANDOM}
xorr   r7, exr_0
addr   r6, r7
movr   r0, r6
movr   r1, rax
ldrr   r2, r0
cmpr   r2, r1
be     0x2c59
movr   r0, rax
movr   r6, rsp
movi   exr_0, ${RANDOM}
movi   r7, ${RANDOM}
xorr   r7, exr_0
movi   exr_0, ${RANDOM}
movi   exr_1, ${RANDOM}
xorr   exr_0, exr_1
mulr   r7, exr_0
addr   r6, r7
movi   exr_0, ${RANDOM}
movi   r7, ${RANDOM}
xorr   r7, exr_0
addr   r6, r7
movr   r1, r6
ldrr   r2, r1
movr   rax, r2

; compile
e7 f8 f1 e5 01 e1 a2 9a 22 87 c3 93 61 e5 06 e1
a2 9a 22 87 c3 93 61 eb 06 01 e6 01 e0 a2 9a 22 
e6 0a e1 a2 9a 22 ec 01 0a d6 06 01 da 07 06 e5 
01 e1 a2 9a 22 87 c3 93 61 e5 06 c1 a2 9a 22 87 
c3 93 61 eb 06 01 da 07 06 e7 f7 f8 e7 fc e5 c6 
00 08 a9 00 03 bb c6 01 00 00 e7 f7 e5 e7 f8 f1 
e5 01 6d 86 d3 6d 7f 86 9d a2 e5 06 6d 86 d3 6d 
7f 86 9d a2 eb 06 01 e6 01 6c 86 d3 6d e6 0a 6d 
86 d3 6d ec 01 0a d6 06 01 da 07 06 e5 01 6d 86 
d3 6d 7f 86 9d a2 e5 06 4d 86 d3 6d 7f 86 9d a2

Before

After

Dual-Mode(Obfuscation + Virtualization) Preview

Obfuscation Preview

Preview

Code-Flattening Preview

Before

After

Precautions

Docs
- Optimization : Verify that VxVirtualizationBegin and VxVirtualizationEnd are in the same block.
  If procedures are merged due to code optimization, problems may arise.
- switch-case : In the switch-case, when the branch movement is not an IMM value, it may be moved to the original position.
- Exception handling : Currently, the virtual CPU does not support exception handling.

How to get the full version

The full version of VxLang is developed and operated under donation through Patreon.
The exact usage of VxLang and sharing of extension module code, new features of VxLang, etc. will be shared.
If you have any questions, please send your request to the email below.

Usage & Guide-Code

Documentation
- 01: SDK Tutorial
- 02: Functional Unit Obfuscation with Map Files
- 03: DLL loading checks
- 04: Rust samples
- 05: Review behavior speed
- 06: Process Anti-Dumping Test

Latest Version & Update(News)

Download
- Demo: ver.1.9.2.2
- Full: Latest version
Update & News

TODO

Task-List
- [DONE] Add dual mode: Allows you to apply both code obfuscation and code virtualization.
- Add Windows Static-Librarys.
- Once the above steps are complete, add the ARM system for the ELF file format.

Special Thanks

Link

iCodeIN/vxlang-page

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