Zygrax Framework

Overview

Zygrax is an advanced payload and Malware generation framework designed for security research and penetration testing. It incorporates cutting-edge evasion techniques, code transformation engines, and multiple deployment methods to create sophisticated payloads for authorized security assessments.

Key Features

Core Capabilities

• Multi-Platform Support: Windows, Linux, macOS
• Multi-Architecture: x86, x64, ARM64
• Multiple Payload Types: Shellcode, C source, Assembly
• Advanced C2 Communication: HTTPS, DNS, ICMP, WebSocket protocols

Advanced Obfuscation

• Polymorphic Engine: Real-time code structure transformation
• Metamorphic Engine: Self-modifying payload generation
• Code Virtualization: VM-based execution protection
• Genetic Mutation: Evolutionary algorithm-based code mutation
• Multi-layer Encryption: AES-256 payload protection

Anti-Analysis Evasion

• Anti-Debugging: PTRACE detection, hardware breakpoint detection
• Anti-VM: CPUID-based virtualization detection
• Anti-Sandbox: Environment-aware execution paths
• Timing Analysis: Execution timing manipulation

Fileless Deployment

• Reflective DLL Injection: Memory-only DLL loading
• Process Hollowing: Legitimate process replacement
• APC Injection: Asynchronous procedure call injection
• Memory-only Execution: No disk footprint

Compilation

Prerequisites

# Install required libraries
sudo apt-get install build-essential libssl-dev  # Ubuntu/Debian
sudo yum install gcc openssl-devel               # CentOS/RHEL
brew install openssl                             # macOS

Building Zygrax

# Clone and compile
git clone https://github.com/Ar1sto/zygrax.git
cd zygrax
gcc -o zygrax zygrax.c -lssl -lcrypto -O2

Verification

# Verify compilation
./zygrax --help

Usage Guide

Basic Usage

# Interactive mode (recommended for beginners)
./zygrax --interactive

# Advanced mode (all features enabled)
./zygrax --advanced --interactive

# Quick shellcode generation
./zygrax --type shellcode --output payload.bin --platform windows --arch x64

Complete Parameter Reference

Payload Configuration

Parameter	Description	Values	Default
--type	Payload type	shellcode, c, asm	Required
--output	Output filename	Any valid filename	Required
--platform	Target platform	windows, linux, macos	Current OS
--arch	Target architecture	x86, x64, arm64	x64

Obfuscation Engine

Parameter	Description	Values	Default
--obfuscate	Obfuscation level	0-5	2
--polymorphic	Enable polymorphic engine	None (flag)	Disabled
--metamorphic	Enable metamorphic engine	None (flag)	Disabled
--virtualization	Enable code virtualization	None (flag)	Disabled
--vm-type	Virtual machine type	register, stack, hybrid	register

Mutation Engine

Parameter	Description	Values	Default
--mutation	Enable genetic mutation	None (flag)	Disabled
--mutation-rate	Mutation rate percentage	1-100	5
--generations	Number of generations	1-100	3
--algorithm	Mutation algorithm	genetic, random, evolutionary	genetic

Anti-Analysis

Parameter	Description	Values	Default
--anti-debug	Anti-debugging techniques	None (flag)	Disabled
--anti-vm	Anti-virtualization detection	None (flag)	Disabled
--anti-sandbox	Anti-sandbox evasion	None (flag)	Disabled
--anti-timing	Timing-based detection	None (flag)	Disabled

Fileless Deployment

Parameter	Description	Values	Default
--fileless	Enable fileless techniques	None (flag)	Disabled
--injection	Injection method	reflect, hollow, apc	reflect
--target	Target process	Process name	explorer.exe

C2 Configuration

Parameter	Description	Values	Default
--c2-server	C2 server address	IP or hostname	127.0.0.1
--c2-port	C2 server port	1-65535	443
--c2-protocol	C2 protocol	http, https, dns, tcp, icmp, websocket	https
--auth-key	Authentication key	Any string	Generated

Compiler Options

Parameter	Description	Values	Default
--compiler	Compiler selection	gcc, clang, mingw	gcc
--flags	Compiler flags	GCC/Clang flags	-O2
--optimize	Optimization level	0-3	2
--strip	Strip binary symbols	None (flag)	Disabled
--pie	Enable PIE	None (flag)	Disabled

General Options

Parameter	Description	Values	Default
--help	Show help message	None (flag)	N/A
--interactive	Interactive mode	None (flag)	Disabled
--advanced	Enable all features	None (flag)	Disabled
--encrypt	Enable payload encryption	None (flag)	Disabled

Technical Implementation Details

Polymorphic Engine

The polymorphic engine implements real-time code transformation through:

• Instruction substitution and register reassignment
• Code transposition and control flow alteration
• Dynamic API hashing and resolution
• Multi-layer obfuscation with configurable intensity

Metamorphic Engine

Metamorphic capabilities include:

• Self-modifying code generation
• Structural code randomization
• Decoder stubs for runtime decryption
• Environment-aware code generation

Virtual Machine Protection

The virtualization layer provides:

• Register-based virtual machine architecture
• Custom instruction set interpretation
• Bytecode translation and execution
• Anti-analysis through code interpretation

Genetic Mutation

Evolutionary algorithms feature:

• Multi-generation mutation cycles
• Crossover and elitism mechanisms
• Adaptive mutation rates
• Multiple mutation strategies

Advanced Usage Examples

Advanced Evasion Payload

./zygrax --type shellcode --output advanced.bin --platform windows --arch x64 \
         --polymorphic --metamorphic --virtualization --vm-type hybrid \
         --mutation --mutation-rate 15 --generations 5 --algorithm evolutionary \
         --anti-debug --anti-vm --anti-sandbox --anti-timing \
         --fileless --injection reflect --target explorer.exe \
         --encrypt --c2-protocol dns --c2-server your-c2-server.com

Stealth C Payload

./zygrax --type c --output stealth.c --platform linux --arch x64 \
         --obfuscate 5 --polymorphic --anti-debug --anti-vm \
         --compiler clang --optimize 3 --strip --pie \
         --c2-protocol https --c2-server 192.168.1.100 --c2-port 443

Research Configuration

./zygrax --advanced --interactive

Output Examples

Generated C Code Structure

// Anti-analysis checks
void AntiDebugCheck() {
    if (IsDebugged()) {
        exit(1);
    }
}

void AntiVMCheck() {
    if (IsVM()) {
        exit(1);
    }
}

// Fileless execution capability
BOOL ReflectiveLoader(LPVOID lpPayload) {
    // Memory-only DLL loading implementation
}

// Encrypted communication
void SecureC2Communication() {
    // AES-256 encrypted channel
}

Compilation Instructions

For C payloads, Zygrax provides optimized compilation commands:

# Windows cross-compilation
x86_64-w64-mingw32-gcc -O3 -s -fPIE -pie -o payload.exe payload.c

# Linux compilation
gcc -O3 -s -fPIE -pie -fstack-protector-strong -o payload payload.c

Ethical Usage and Legal Notice

Intended Purpose

Zygrax is exclusively designed for:

• Authorized penetration testing
• Security research and education
• Red team exercises with proper authorization
• Academic security studies
• Defensive security tool development

Strictly Prohibited Uses

• Unauthorized security testing
• Malicious cyber activities
• Network intrusion without permission
• Any illegal or unethical activities

Legal Compliance

Users must ensure:

• Proper authorization for all testing activities
• Compliance with local and international laws
• Respect for privacy and data protection regulations
• Adherence to responsible disclosure practices

Security Research Focus

Zygrax contributes to cybersecurity by:

• Advancing evasion technique understanding
• Improving defensive security measures
• Enhancing threat intelligence capabilities
• Supporting security education and training

Architecture Support

Supported Platforms

• Windows: 7/8/10/11, Server 2012-2022
• Linux: Kernel 3.0+, most distributions
• macOS: 10.12+ (Intel and Apple Silicon)

Processor Architectures

• x86: 32-bit Intel/AMD compatibility
• x64: 64-bit Intel/AMD optimization
• ARM64: Apple Silicon and ARM server support

Dependencies and Requirements

Required Libraries

• OpenSSL 1.1.1+ (encryption functions)
• Standard C library (stdlib, string, time)
• Platform-specific APIs (Windows API, POSIX)

Build Requirements

• GCC 7.0+ or Clang 6.0+
• GNU Make or equivalent
• OpenSSL development headers

Troubleshooting

Common Issues

1. OpenSSL not found: Install libssl-dev package
2. Compilation errors: Ensure GCC and development tools are installed
3. Permission denied: Check file permissions and anti-virus software
4. Payload detection: Adjust obfuscation levels and techniques

Performance Considerations

• Higher obfuscation levels increase generation time
• Complex mutations may affect payload size
• Virtualization adds runtime overhead
• Choose features based on operational requirements

Contributing and Development

Research Collaboration

Zygrax welcomes contributions in:

• New evasion techniques
• Anti-analysis methods
• Performance optimization
• Additional platform support

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Zygrax Framework - Advanced Payload Generation for Security Research

Disclaimer: This tool should only be used for legitimate security research and authorized testing activities. Users are responsible for ensuring they have proper authorization before using this tool in any environment.