Hello There! I am

KARTHIK PARAMBIL

Penetration Testing | Ethical Hacker | CTF Player

Resume

About Me

Passionate Cyber Researcher & Pentester

I'm passionate about exploring the depths of cybersecurity, uncovering vulnerabilities, and building secure systems. My work spans ethical hacking,network pentesting and offensive security with a current focus on Active Directory Security.

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As a Pentester and Ethical Hacker, my passion lies in uncovering vulnerabilities and strengthening security through responsible and effective exploitation.

Core Expertise

  • Vulnerability Assessment & Penetration Testing
  • Web Application Security
  • Network Security
  • Active Directory Security

Current Focus

Specializing in Active Directory security, identifying critical weaknesses, and improving identity and access security across enterprise environments.

Technical Skills

Expertise across the cybersecurity spectrum

Penetration Testing

Advanced vulnerability assessment and exploitation techniques

Web App Security

OWASP Top 10, XSS, CSRF, SQL Injection, HTTP Request Smuggling, Business Logic Flaws and Modern Web Vulnerabilities

Network Security

Firewall management, IDS/IPS, VPN, and network protocol analysis

Active Directory Security

Kerberos Attacks,NTLM Attacks, Privilege Escalation Paths, Lateral Movement, and Identity Misconfigurations

Digital Forensics

Incident response, evidence collection, and forensic analysis

Reverse Engineering

Malware analysis, binary exploitation, and software reverse engineering

Technologies & Tools

Burp Suite Metasploit Wireshark Nmap Gobuster Hydra Ffuf SQLMap Nessus John the Ripper Hashcat Ghidra Responder Impacket

Professional Certifications

Validated expertise in cybersecurity and information security

CompTIA

Pentest+

CompTIA

Focus: Core Security
Level: Intermediate
Pursuing
Google

Google Cybersecurity Professional Certificate

Google / Coursera

Focus: SecOps & Analysis
Level: Professional
View Cert
Forage

Cybersecurity Job Simulation

Mastercard by Forage

Focus: Job Simulation
Level: Intermediate
View Cert
Red Team Leaders

Cybersecurity Educator

Professional Certification

Focus: Training & Ed
Level: Professional
View Cert
Offenso Hackers Academy

ADIS

Advanced Diploma in Information Security

Focus: Enterprise Sec
Level: Advanced
Pursuing

Projects

A showcase of my recent work across different cybersecurity domains. Each project represents a unique challenge and solution.

Custom CTF Challenges

Mission:Escape

Prison-Break themed Vulnerable Machines

A deliberately vulnerable machine contains Web Exploitation, misconfigurations, weak credentials, and logic flaws across Web and OS to "escape" by capturing the final flag.

Machines Web Exploitation Cryptography Privilage Escalation
Custom CTF Challenges

Mission:Space

Space themed Vulnerable Machines

A space-station themed Machine for Pentesting, focused on Web Exploitation, security misconfigurations, digital forensics and privilege escalation challenges within a simulated space station environment.

Machines Web Exploitation Cryptography Privilage Escalation
CTF Challenges

CTF

Custom Capture The Flag Challenges

Custom-designed Capture The Flag challenges for various skill levels. Each challenge focuses on specific cybersecurity concepts and requires creative problem-solving approaches for success.

Web Exploitation Forensics
10+
Challenges
2+
Categories
gfinder

Gfinder

Web based finding tool

Gfinder is a powerful search tool to find code, files, and hidden secrets instantly using powerful filters and clear visual results with displays the equivalent Linux command.

Python
gfinder

Scanix

Automated reconnaissance suite for web applications

Scanix is a powerful automation tool that streamlines the initial reconnaissance phase of penetration testing. It orchestrates multiple security tools Nmap, Feroxbuster, Nikto across parallel terminals to provide comprehensive target assessment.

Bash
Pwnkit Collection

Pwnkit

Collection of Pentesting Automation Scripts

Comprehensive collection of Python and Bash scripts designed to automate penetration testing workflows. Features include network scanning, vulnerability assessment, and post-exploitation modules.

Automation Python Bash
5+
Scripts
85%
Time Reduction
Custom CTF Challenges

LXD2ROOT

LXD Privilege Escalation Exploit

Automated LXD exploitation script where users in `lxd` group allows root access through container breakout. Exploits the LXD container breakout vulnerability to gain root access on target systems.

CVE-2023-5536 Privilege Escalation LXD Container
CTF Writeups

CTF Writeups & Solutions

Capture The Flag Challenge Solutions

Comprehensive collection of detailed CTF writeups featuring step-by-step exploitation techniques, vulnerability analysis, and creative problem-solving approaches from various cybersecurity competitions.

Web Exploitation Cryptography Forensics Tryhackme
20+
Solves
6+
Categories
Hashmode

Hashmode

Quick Hashcat hash mode lookup tool

A lightweight utility for quickly looking up Hashcat hash modes — available as both a web interface and a shell script. Built to speed up the password cracking workflow during penetration testing engagements.

hashcat pentesting password cracking CTF security tools
Viewpad Studio

Viewpad Studio

Modern Node-Based Workflow Editor

A modern node-based workflow editor designed to help individuals and teams think, organize, and build more efficiently in a visual environment. Featuring an interactive 2D canvas with a premium cyber-dark and glassmorphism-inspired design.

Node-based Workflow Editor 2D Canvas
News Aggregator App

News Aggregator App

Intelligent News Feed Application

A comprehensive news aggregation system featuring an advanced backend data ingestion pipeline. Engineered with resilient metadata extraction mechanisms and a server-side visual fallback proxy, ensuring highly reliable content delivery and a seamless, chronologically structured user experience.

Web Development Backend Pipeline UI/UX

Experience

CTF Player

May 2025 - Present · 11 mos

Competing in various cybersecurity competitions with a focus on Offensive Security, Web Exploitation, Reverse Engineering, and Cryptography.

Hackware Security Solutions

VAPT Intern

Internship
Jun 2026 - Jul 2026 · 1 mo

Conducted Vulnerability Assessment and Penetration Testing (VAPT) across web applications, network environments, and API endpoints. Identified security flaws, executed exploit PoCs, and delivered comprehensive remediation reporting.

Offenso Hackers Academy

Research and Development Member

Full-time
Jul 2025 - Present · 1 yr 1 mo

Conducted security research and developed innovative cybersecurity solutions for emerging threats. Created comprehensive penetration testing labs, vulnerable environments, and hands-on Capture The Flag (CTF) challenges for training purposes.

Let's Connect

Ready to collaborate on cybersecurity projects or discuss opportunities?

Ready to work together?

Whether you need penetration testing, security consultation, or want to collaborate on cybersecurity challenges, I'm always interested in new opportunities.