kostacek/malware-analysis-and-threat-modeling

# 🦠 Malware Analysis: Backdoor, Keylogger & Command-and-Control ⚠️ **Disclaimer:** This project is for educational and defensive security purposes only. No malicious use is intended. ## 📌 Project Overview This project analyzes a multi-component malware implementation consisting of: - Reverse shell (backdoor) - Command-and-control (C2) communication - Keylogging functionality - Persistence planning The objective is to understand attacker behavior and map these techniques to defensive security controls. ## 🧠 Skills Demonstrated - Malware behavior analysis - Threat modeling - Command-and-control (C2) concepts - Endpoint compromise techniques - Risk assessment - Defensive security controls ## ⚠️ Threat Capabilities Identified ### 🖥️ 1. Reverse Shell (Backdoor) The malware establishes a remote connection to a server and executes system commands. - Uses socket-based communication - Executes commands via system shell - Sends output back to attacker 📌 Example behavior: - Remote command execution - Full system control ### ⌨️ 2. Keylogging The malware captures user keystrokes and logs them to a file. - Monitors keyboard input - Tracks modifier keys (Shift, Caps Lock) - Stores captured data locally 📌 Risk: - Credential theft - Sensitive data exposure ### 🌐 3. Command-and-Control (C2) The malware connects to a remote server and continuously listens for commands. - Persistent outbound connection - Receives attacker instructions - Executes commands dynamically 📌 Risk: - Remote control of system - Data exfiltration - Lateral movement ### 🔁 4. Persistence Strategy Planned behaviors include: - Auto-start on system reboot - Execution of additional programs - Directory navigation and control ## 🔎 Risk Impact - **Severity:** Critical - **Risk:** Full system compromise - **Impact:** - Unauthorized remote access - Credential harvesting - Data exfiltration - Persistent attacker presence ## 🛡️ Mitigation & Defensive Controls ### Endpoint Protection - Deploy EDR solutions - Monitor for unusual processes - Detect unauthorized shell execution ### Network Security - Restrict outbound connections - Monitor unusual traffic patterns - Block unknown remote endpoints ### Access Control - Enforce least privilege - Prevent unauthorized program execution ### Monitoring & Detection - Use SIEM for anomaly detection - Monitor logs for suspicious behavior - Detect keylogging patterns ## 🧠 GRC Relevance This project demonstrates: - Risk identification and classification - Mapping technical threats to business impact - Implementation of security controls - Incident detection and response planning ## 🎯 Why This Project Matters Understanding how malware operates enables organizations to: - Anticipate attack techniques - Strengthen defensive controls - Improve detection and response capabilities This project bridges offensive techniques with defensive security strategy and governance. ## 📄 License (MIT) MIT License Copyright (c) 2026

标签：客户端加密