Module 01: Introduction to Ethical Hacking

As I prepare for the Certified Ethical Hacker (CEH) certification, I’ve put together this cheat sheet for Module 01: Introduction to Ethical Hacking. This quick reference is divided into two parts:

• 🧠 Part 1: Key Concepts for MCQs

• 🛠️ Part 2: Tools and Commands You Must Know

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🧠 Part 1: Key Concepts for CEH MCQs

🔐 Ethical Hacking Basics

Ethical Hacking is the legal practice of testing a system’s security by attempting to exploit vulnerabilities — all with permission.

👤 Types of Hackers

🔐 The CIA Triad + More

🛡️ Security Testing Types

📌 Ethical Hacking Phases

1. Reconnaissance – Info gathering

2. Scanning – Network, port, and vulnerability scanning

3. Gaining Access – Exploiting weaknesses

4. Maintaining Access – Backdoors, persistence

5. Covering Tracks – Deleting logs, hiding activity

💥 Common Attack Vectors

• Social Engineering

• Web Application Attacks (XSS, SQLi)

• Wireless Attacks

• Cloud & IoT Exploits

• MITM (Man-in-the-Middle)

• DoS/DDoS

🧱 Defense Tactics vs. Hacking Phases

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🛠️ Part 2: Important Tools and Commands

🧰 Common Ethical Hacking Tools

🔧 Common Command Examples

🔍 Nmap (Network Mapping)

nmap -sS 192.168.1.1              # Stealth SYN scan
nmap -A 192.168.1.1               # Aggressive scan with OS detection
nmap -p 1-65535 192.168.1.1       # Full port scan