Ethical hacking, or white-hat hacking, involves testing and attacking networks and web systems within legal limits. The goal is to find and fix security weaknesses before malicious hackers can take advantage of them. Ethical hacking is a type of penetration testing conducted under clear legal guidelines, often through authorized contracts. Bug bounty programs reward independent hackers for reporting security flaws in a company’s system.
Penetration Testing is a formal security audit of a company's infrastructure performed regularly to find and fix weaknesses.
Bug Bounty Hunting is an ongoing process of finding vulnerabilities on platforms like HackerOne, Bugcrowd, and Intigriti. Hackers earn rewards for each vulnerability they report.
The financial rewards in bug bounty programs can be significant, with major bugs earning hackers between $1,000 and over $50,000 for a single report.
Safe Harbor legal protections offer security to independent hackers who report issues, as long as they follow set rules.
Basics of Ethical Hacking
Understanding the basics of ethical hacking is essential. Key steps help differentiate ethical hacking from malicious hacking. Ethical hackers operate within legal boundaries using Rules of Engagement, Non-Disclosure Agreements, and Authorization Statements.
The Ethical Hacking Lifecycle
1. Reconnaissance
2. Scanning and Assessment
3. Exploitation
4. Post-Exploitation and Maintaining Access
5. Reporting
The 5 Stages of Cyber Attacks and Penetration Testing
1. Reconnaissance: Gather information about the target host, domain, and employees.
2. Scanning and Enumeration: Identify active IPs, open ports, services, and assess potential software weaknesses.
3. Gaining Access: Exploit weaknesses identified earlier to access the target system.
4. Maintaining Access and Escalation: Create backdoors to keep access and escalate privileges from standard to admin/root access.
5. Analysis and Reporting: Document the detected weaknesses, steps to reproduce them, and their potential impact on the business.
The CIA Triad
The CIA triad is a cybersecurity model used to guide the creation of security policies based on three main principles.
Computer Networking Basics
You cannot attack what you do not understand. To succeed in ethical hacking, you must grasp the fundamentals of computer networking. Aspiring security analysts should have solid knowledge of operating systems and networking protocols.
Essential OSI Layer and TCP/IP Protocols
Understanding TCP/IP communication protocols is critical in ethical hacking and computer networking. The table below shows the relevant protocols, their default ports, corresponding layers, and functions.
Core Networking Concepts
IP Addressing and Subnetting: Differentiate between IPv4 and IPv6, public and private IPs, default gateways, and subnets (RFC 1918).
TCP 3-Way Handshake: The connection establishment process (SYN, SYN-ACK, ACK).
Linux CLI: Basic Linux command-line interface commands include chmod, grep, awk, netstat, iptables, and systemctl.
Lab Setup for Virtual Machines
Testing hacking techniques on live systems is illegal. Ethical hackers and penetration testers use virtual machines to practice. Setting up a lab involves these steps:
Step-by-step Virtual Lab Configuration
Establishing a virtual lab includes installing hypervisor platforms and deploying attacker and target virtual machines.
1. Install a Type-2 Hypervisor: Download and install Oracle VM Virtual Box or VMware Workstation Player.
2. Deploy Attacker Machine: Download the ISO or virtual machine image for Kali Linux or Parrot OS, and set it to at least 4GB RAM, 2 CPU cores, and 30GB storage.
3. Deploy Target Vulnerable Machines:
Metasploitable 2/3: A vulnerable Linux virtual machine used for network penetration testing practice.
OWASP Juice Shop or DVWA: A web application with known OWASP Top 10 vulnerabilities, such as SQL injection and XSS flaws.
Windows Server Lab: Set up a Windows Server virtual machine to practice Windows-specific hacking techniques.
4. Configure Network Isolation (Host-Only or NAT Network):
Create a NAT Network in Virtual Box or VMware so that the virtual machines can communicate while remaining isolated from your host machine and local LAN.
Turn off promiscuous mode on physical adapters to prevent packet sniffing.
Footprinting and Information Gathering
Reconnaissance is the most vital step in hacking, and research can account for up to 70% of a penetration testing engagement. Footprinting is the information-gathering phase that helps identify potential weaknesses for launching an attack.
Passive Reconnaissance (OSINT)
Passive footprinting is a technique that collects public information about the target without interacting with its systems or servers.
WHOIS Lookups: Find domain registration details, admin emails, and name servers.
Google Dorking (Advanced Search Operators): Use special search terms for detailed results.
Shodan and Censys: Search engines that display information about online devices, such as open ports, webcams, and servers.
DNS Enumeration: Identify subdomains and mail servers with tools like dig, host, and dnsrecon.
Active Reconnaissance
Network Scanning with Nmap: Use the command: S -sV -O -p- 192.168.1.50
Subdomain Enumeration Tools: Utilize tools like Sublist3r, Amass, and Gobuster to find subdomains.
Banner Grabbing: Use netcat or telnet to query web and mail servers for software version information.
Cyber Security and Ethical Hacking Training at Quality Thought
Those building a career in cybersecurity need a mix of theoretical and practical knowledge. Quality Thought is Hyderabad’s top IT training institute, offering a Cyber Security and Ethical Hacking Course for beginners, IT professionals, and aspiring ethical hackers.
Why Choose Quality Thought?
Industry Expert Trainers: Quality Thought’s trainers are certified cybersecurity experts and penetration testers with over ten years of experience.
Real-Time Lab Facilities: Students get hands-on experience with enterprise-level security tools in real-time lab training.
Comprehensive Course Curriculum: The Cyber Security and Ethical Hacking Course covers ethical hacking, bug bounty, SOC analyst (SIEM), malware analysis, and web app security.
100% Placement Assistance: Quality Thought offers complete placement support and career guidance to help learners secure top-paying cybersecurity jobs.
Flexible Learning Options: Students can choose between online live classes or on-campus training in Ameerpet, Hyderabad.
Course Enrollment and Contact Information
Ready to start your career as a certified ethical hacker, penetration tester, or bug bounty hunter? Contact Quality Thought today to schedule a free live demo session.
Website: https://qualitythought.in/
Course: https://qualitythought.in/cyber-security-training/
Phone or WhatsApp: 08897486382
Address: Flat No: 605, 6th Floor, Nilgiri Block, ADITYA ENCLAVE, Beside Ameerpet Metro Station, Kumar Basti, Ameerpet, Hyderabad, Telangana 500016.