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Introduction
Red teaming has always been a collaborative effort, but GunnerC2 takes it to the next level with its multiplayer team server, role-based access control, and integrated operator toolkit. This powerful C2 (Command and Control) framework enables security teams to simulate advanced attacks with unprecedented coordination.
Learning Objectives
- Understand the core features of GunnerC2 and its advantages in red teaming.
- Learn how to set up and manage a multiplayer team server.
- Explore key commands and configurations for efficient operator management.
You Should Know
1. Setting Up a GunnerC2 Team Server
GunnerC2’s multiplayer server allows multiple operators to collaborate in real-time. Here’s how to deploy it:
Command:
python3 gunner_server.py --host 0.0.0.0 --port 443 --auth-key "YourSecureKey123"
Step-by-Step Guide:
- Install Python 3.8+ and required dependencies (
pip install -r requirements.txt). - Run the server with the command above, binding it to an IP and port.
- Operators connect using the auth key for secure access.
2. Role-Based Access Control (RBAC) Configuration
GunnerC2 allows granular permissions for operators.
Command:
./gunner_ctl add-operator --name "Operator1" --role "attacker" --permissions "exec,upload"
Step-by-Step Guide:
- Use `gunner_ctl` to add operators with specific roles (e.g., attacker, analyst).
- Assign permissions (e.g., `exec` for command execution, `upload` for file transfers).
3. Verify roles with `./gunner_ctl list-operators`.
3. Executing Multiplayer Attack Simulations
Teams can coordinate attacks seamlessly.
Command (Operator Side):
./gunner_agent --connect server_ip:443 --auth-key "YourSecureKey123" --task "phish_campaign"
Step-by-Step Guide:
- Agents connect to the server using the auth key.
- The team leader assigns tasks (e.g., phishing, lateral movement).
3. Real-time updates appear in the team dashboard.
4. Logging and Forensic Analysis
GunnerC2 logs all operator actions for post-operation review.
Command:
./gunner_ctl export-logs --output op_audit.json
Step-by-Step Guide:
1. Export logs in JSON format for analysis.
- Use tools like Splunk or ELK for forensic review.
3. Track operator actions for compliance and training.
5. Securing the Team Server
Harden the server against counter-red teaming measures.
Command (Firewall Rule):
sudo ufw allow from 192.168.1.0/24 to any port 443 proto tcp
Step-by-Step Guide:
1. Restrict server access to trusted IPs.
2. Enable TLS encryption for C2 traffic.
3. Rotate auth keys periodically.
What Undercode Say
- Key Takeaway 1: GunnerC2’s multiplayer approach enhances red team efficiency, making it ideal for large-scale simulations.
- Key Takeaway 2: RBAC ensures secure collaboration, preventing accidental or malicious misuse.
Analysis:
GunnerC2 bridges the gap between solo red teaming and coordinated attacks. Its integrated toolkit reduces reliance on third-party tools, streamlining operations. However, defenders must now adapt to more sophisticated, team-based attack simulations.
Prediction
As red teaming evolves, tools like GunnerC2 will push cybersecurity training toward multiplayer, real-time collaboration. Expect more C2 frameworks to adopt similar features, making attack simulations more dynamic—and defense strategies more challenging.
IT/Security Reporter URL:
Reported By: Leighlin Gunner – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅


