Cybersecurity Specialist

Divyanshu Gupta

Hi, I’m Divyanshu Gupta — a cybersecurity enthusiast with hands-on experience in VAPT, web/API security testing, and bug bounty hunting. I live for CTFs, Virat Kohli masterclasses, and even the occasional Clash of Clans grind.

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200+

Security Audits

Zero Breaches

Client Track Record

24/7

Threat Monitoring

/about

Hi, I’m Divyanshu Gupta — a cybersecurity enthusiast with hands-on experience across VAPT, web and API security, and bug bounty hunting. I live for spotting vulnerabilities, dissecting flaws, and tightening defenses with real tooling and practical methodologies.

When I’m not threat-hunting, I’m probably watching a Virat Kohli masterclass, grinding Clash of Clans, or jumping into a CTF to swap tactics with other operators.

University of Lucknow

Bachelor of Computer Applications — June 2024

Specialized in secure software patterns, exploit dev labs, and applied cryptography research.

Community Missions

  • Digital Yodha Foundation: Volunteer speaker & mentor for cyber awareness.
  • Cyber Cell, Lucknow: Cyber volunteer supporting incident response outreach.

/skills

Stacks tuned for offensive recon, full-scope exploitation, and rapid remediation guidance.

Web & Network Testing

Burp Suite Pro, OWASP ZAP, Nmap, Nessus, OpenVAS, Acunetix, Nikto.

Recon & Enumeration

Subfinder, WhatWeb, Wappalyzer, Amass, Shodan, Gobuster, Censys.

Credential & Post-Exploitation

Hydra, Medusa, CrackMapExec, BloodHound, Mimikatz.

Scripting & Automation

Python, Bash, PowerShell — custom recon tooling reduced scanning by 40%.

Cloud & OS

AWS EC2/S3, AWS WAF, Cloudflare • Kali, Parrot, Ubuntu, Windows.

Certifications

  • CEH Practical v13
  • eJPT
  • ISO/IEC 27001 (Information Security Associate™)
  • CRTA & MCRTA
  • ICCA
  • IoT — Samsung Innovation Campus

Platforms

TryHackMe — lostboy.31

/projects

Recent missions blending red teaming, compliance, and enablement for high-trust orgs.

Stegg

Python steganography toolkit for hiding payloads in images/audio with audit-friendly logging.

  • Supports multiple cover types and reversible detection checks.
  • CLI flags for batch operations + artifact validation.
View Repo →

PowerShell Network Scanning Scripts

Modular network reconnaissance scripts for Windows environments.

  • Enumerates hosts, services, and shares in regulated bank networks.
  • Outputs CSV/JSON for instant reporting and threat-modeling.
View Repo →

Flags & Labs Hub

Detailed Chill Guy challenge notes capturing flags, payloads, and exploit reasoning.

  • Step-by-step writeups covering methodology and countermeasures.
  • Living document that feeds upcoming workshops and content drops.
Read Notes →

/contact

Ready for audits, CTF collabs, or just swapping tactics? Here’s how to reach me.

Platforms

TryHackMe, CTFs, and ongoing lab experiments start here:

tryhackme.com/p/lostboy.31

Latest writeups hit the /blog page first.

/blog

Hand-picked writeups hosted on Medium and linked from this site first. New labs & playbooks drop here.

Open Medium Profile