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Introduction:
The journey from novice to a rewarded bug bounty hunter is a rite of passage in cybersecurity. Md Arbaj’s inaugural $100 bounty in 2026, achieved with guidance from mentor Rohan Lew, encapsulates a modern success story built on systematic methodology, foundational tools, and persistent learning. This article breaks down the technical roadmap that transforms enthusiastic beginners into effective security researchers, providing the actionable commands and procedures that underpin a successful hunt.
Learning Objectives:
- Understand the core methodology and mindset shift required for effective bug bounty hunting.
- Learn to set up a professional reconnaissance and vulnerability testing environment.
- Execute a basic testing workflow from target scoping to proof-of-concept creation and reporting.
You Should Know:
1. The Mindset & Methodology: Beyond Random Clicking
Successful bug hunting is a structured process. Adopt a methodology like the “Cyber Kill Chain” or simply follow: Reconnaissance > Enumeration > Vulnerability Analysis > Exploitation > Reporting. The key is consistency and depth over breadth. Start with a single target (e.g., one domain or web application) from a platform like HackerOne, Bugcrowd, or a public VDP (Vulnerability Disclosure Program). Your first goal is not to find the most complex chain but to identify clear, verifiable flaws like insecure direct object references (IDOR), cross-site scripting (XSS), or information leaks.
2. Environment Setup: Your Hacking Lab
Before touching a live target, configure a safe and isolated environment.
Step‑by‑step guide:
- Operating System: Use a Linux distribution like Kali Linux or Parrot OS, either as a virtual machine (VM) or a primary system. For Windows, use WSL2 with a Kali Linux instance.
- VPN/Anonymization: While not always mandatory, consider a VPN. More critically, configure your tools to avoid harming the target. Set user-agent strings and rate-limit your scans.
3. Essential Tool Installation:
Update Kali sudo apt update && sudo apt upgrade -y Install core reconnaissance tools sudo apt install -y nmap git curl wget docker.io Install and configure Burp Suite Community (Headless for automation can be useful) Download from portswigger.net java -jar burpsuite_community.jar & Install a directory brute-forcing tool sudo apt install -y gobuster dirbuster
4. Browser Configuration: Install browser extensions like FoxyProxy, Wappalyzer, and HackerOne’s “H1 Tester” browser extension for streamlined testing and reporting.
- Passive & Active Reconnaissance: Mapping the Attack Surface
This phase involves discovering assets (domains, subdomains, IPs, APIs) without alerting the target (passive) and then interacting with them (active).
Step‑by‑step guide:
1. Passive Recon (Subdomain Enumeration):
Using subfinder & assetfinder (install via 'go install') subfinder -d target.com -silent | tee subdomains.txt assetfinder --subs-only target.com | tee -a subdomains.txt Use Amass for more intensive enumeration amass enum -passive -d target.com -o amass_passive.txt
2. Active Recon (Port & Service Scanning):
Use Nmap on discovered IPs nmap -sV -sC -T4 -oA initial_scan <IP_ADDRESS> For web services, probe for HTTP/HTTPS for url in $(cat subdomains.txt); do echo "https://$url"; done | httpx -title -status-code -o live_targets.txt
4. Vulnerability Discovery: From Surface to Depth
With a list of live targets, begin systematic testing.
Step‑by‑step guide:
- Automated Scanning (Caution: Use low-throttling): Tools like `nuclei` can identify known issues.
Install nuclei template engine nuclei -u https://target.com -t ~/nuclei-templates/ -severity medium,high,critical -o nuclei_scan.txt
- Manual Testing: Intercept traffic with Burp Suite. Test every input point (forms, URL parameters, headers). A classic test is for IDOR:
– Log into an application and note your user ID (e.g., user_id=1001).
– Use Burp’s Repeater tool to change the ID parameter to `1000` or 1002. If you access another user’s data, you have a valid IDOR finding.
3. API Testing: Discover API endpoints (often at /api/v1/, /graphql). Test for missing authentication, excessive data exposure, and Broken Object Level Authorization (BOLA). Use curl:
curl -H "Authorization: Bearer YOUR_TOKEN" https://target.com/api/v1/users/5 Change the user ID in the endpoint
- Proof-of-Concept (PoC) & Documentation: The Key to the Bounty
A well-documented, reproducible PoC is what transforms a potential bug into a paid bounty.
Step‑by‑step guide:
- Document Every Step: Use screenshots, videos (with tools like `asciinema` for CLI), and exact HTTP requests/responses from Burp Suite.
2. Craft the Report:
- Clear and concise (e.g., “IDOR on `/api/v1/users/
` endpoint allows unauthorized access to PII").</li> <li>Vulnerability Details: Description, CVSS score estimation, and technical impact.</li> <li>Steps to Reproduce: Numbered list from an unauthenticated state to the bug.</li> <li>PoC Code/Commands: Include the exact `curl` command or Python script. [bash] import requests for user_id in range(1000, 1005): resp = requests.get(f'https://target.com/api/v1/users/{user_id}', headers={'Authorization': 'Bearer attacker_token'}) if resp.status_code == 200: print(f'Leaked data for user {user_id}: {resp.text[:200]}') - Remediation Advice: Suggest a fix (e.g., implement proper authorization checks).
6. The Reporting Loop & Continuous Learning
Submit the report via the platform’s portal. Be prepared for triage questions. If the report is validated and rewarded, like Md Arbaj’s $100 bounty, analyze why it succeeded. Was it a common OWASP Top 10 issue? Was the target’s scope poorly defined? Use this analysis to guide your next hunt.
Step‑by‑step guide:
- Post-Bounty Analysis: Revisit your process. Did you miss other endpoints on the same subdomain? Could the bug be chained with another?
2. Skill Enhancement: Practice on deliberately vulnerable platforms:
Run a practice lab with Docker docker run -d -p 80:80 vulnerables/web-dvwa
Access `http://localhost` and practice on Damn Vulnerable Web App (DVWA).
What Undercode Say:
- Key Takeaway 1: Mentorship Amplifies Success. The acknowledgment of guidance from Rohan Lew is not a mere courtesy; it’s a critical success factor. Engaging with the community, reviewing disclosed reports, and seeking advice shortens the learning curve dramatically. The fastest route to your first bounty is standing on the shoulders of those who have already navigated the path.
- Key Takeaway 2: Rigorous Process Trumps Genius. The $100 bounty likely resulted from systematically applying fundamental tests (like IDOR, XSS, info leaks) across a defined scope, not from a zero-day exploit. Automation handles breadth, but manual, thoughtful probing—changing parameters, analyzing responses, understanding business logic—uncovers the vulnerabilities that automated scanners miss.
Prediction:
The trajectory from a first $100 bounty in 2026 points toward a highly stratified bug bounty ecosystem. AI-powered reconnaissance and vulnerability fuzzing will become baseline, pushing hunters towards more sophisticated, logic-based attacks and complex chains. Platforms will increasingly reward severity and quality of report over volume, and we’ll see a rise in bounties for vulnerabilities in AI/ML systems themselves—data poisoning, model theft, and adversarial attacks. The beginner’s toolkit will evolve to include AI-assisted code review, but the core skills of persistence, methodology, and clear communication will remain the immutable currency of success.
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IT/Security Reporter URL:
Reported By: Md Arbaj – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
