Who is Shishir Ghimire?

Shishir Ghimire (online as NetaNix) is a cybersecurity student from Kathmandu, Nepal, currently pursuing a BSc (Hons) in Cybersecurity & Ethical Hacking at Softwarica College of IT & E-Commerce, affiliated with Coventry University, UK. He is the founder of NetaNix CTF and ranks in the Top 1% globally on TryHackMe.

What does Shishir Ghimire do?

Shishir Ghimire focuses on penetration testing, digital forensics, red team operations, and security tool creation. He founded the NetaNix CTF platform, publishes security writeups on Medium, and works as a software developer at IOS Nepal building billing and inventory management systems.

Where does Shishir Ghimire study?

Shishir Ghimire studies BSc (Hons) Cybersecurity & Ethical Hacking at Softwarica College of IT & E-Commerce in Kathmandu, Nepal — affiliated with Coventry University, UK. He completed his +2 in Computer Science at NIST (National School of Sciences), Kathmandu.

How can I contact Shishir Ghimire?

You can reach Shishir Ghimire via email at ssishir39@gmail.com, on GitHub as shishirghimir, on Medium as @netanix96, on TryHackMe as N3TANIX, or on LinkedIn at linkedin.com/in/shishir-ghimire-2b7934292.

NetaNix CTF (netanixctf.xyz) is a Capture The Flag platform founded by Shishir Ghimire that hosts competitive cybersecurity tournaments across web exploitation, digital forensics, OSINT, cryptography, and binary analysis.

Available for opportunities

★ Top 1% on TryHackMe

SHISHIR GHIMIRE

// Cybersecurity Student · Always Learning

Cybersecurity student exploring penetration testing, digital forensics, red team operations, and security tool creation. Founder of NetaNix CTF, building from Kathmandu.

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0 Certifications

0 Projects Shipped

TOP 1% TryHackMe Global

0 CTF Platform Founded

About Me

Learning & Breaking.

Cybersecurity student at Coventry University, deep into penetration testing, digital forensics, red team operations, and building my own security tooling. Always learning, always shipping.

I founded NetaNix CTF to give the community a space to learn through competition — and I write up everything I break on Medium.

Penetration Testing Digital Forensics Red Team Tool Creation CTF Design OSINT

Full Profile

AliasNetaNix

DegreeBSc (Hons) Cybersecurity & Ethical Hacking

CollegeSoftwarica — Coventry University

LocationKathmandu, Nepal

GitHubshishirghimir

Medium@netanix96

CTFnetanixctf.xyz

Experience

Where I’ve Worked

Roles spanning software development, security research, and community building.

Software Developer

IOS Nepal — Kathmandu

Designing and shipping billing and inventory management software for retail clients. Built and deployed EPAL — a complete billing platform with PDF invoicing, barcode generation, and dashboard analytics.

2025 — Present

Founder & Tournament Director

NetaNix CTF — netanixctf.xyz

Founded and operate the NetaNix CTF platform hosting competitive Capture The Flag tournaments. Designing challenges across web exploitation, forensics, OSINT, and cryptography for the security community.

2025 — Present

Security Researcher & Writer

Independent — Medium / TryHackMe

Publishing writeups on Medium covering HackTheBox and TryHackMe rooms. Active CTF player on TryHackMe as N3TANIX, focused on web exploitation, container escapes, and post-exploitation.

2023 — Present

Selected Work

Projects & Tools

Security tools, business software, and platforms I’ve designed and shipped.

CrackVault

Python — Security Tool

Multi-purpose password recovery GUI supporting common hash formats, shadow files, and encrypted archives like ZIP, RAR, PDF and KeePass.

NetaNix LabsPython

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NetaNix CTF

Platform — netanixctf.xyz

Founded the platform hosting competitive security tournaments across web exploitation, forensics, OSINT, and cryptography.

FoundedCTF

Visit Platform

EPAL Billing

Python — Deployed Production

Billing and inventory management system deployed for IOS Nepal. Features PDF invoicing, barcode generation, and dashboard charts.

DeployedPython

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ClickNPick

React & Node.js — Full-Stack

Full-stack pharmacy platform with Khalti payments, JWT auth in HTTP-only cookies, and a role-based admin dashboard.

Full-StackReact

View Details

CVE-2024-53677

Python — PoC Exploit

Published proof-of-concept exploit demonstrating the vulnerability research and exploitation workflow for ethical security research.

CVE ResearchPython

GitHub

Custom Firewall

C — Network Security

Packet-filtering firewall written in C across two iterations, alongside a Python network penetration testing utility.

CNetworking

GitHub

All Projects

Latest Writeups

Research & Writeups

Walkthroughs of CTF rooms, HackTheBox machines, and security research on Medium.

HackTheBox2025

MonitorsFour HTB — Web Enumeration to Docker Escape

Walkthrough covering web enumeration, exploitation, and a Docker escape to gain root on the host.

Read on Medium

TryHackMe2025

Corridor — TryHackMe Room Writeup

IDOR walkthrough — break out of the corridor and grab the flag.

Read on Medium

All Writeups

Achievement

TryHackMe — Top 1%

Live profile badge showing my current rank, streak, and progress on TryHackMe.

N3TANIX — TryHackMe

Top 1% Global

6,756Points

236Rooms

32Badges

0xELevel

Profile: tryhackme.com/p/N3TANIX View Full Profile →

Credentials

Certifications & Training

13 credentials across TryHackMe, Red Team Leaders, and ICM Security.

Jr Penetration Tester

TryHackMe

CompTIA Pentest Path

TryHackMe

Physical PenTest Fundamentals

Red Team Leaders

CCEP

Red Team Leaders

Foundations of Log Analysis

Red Team Leaders

AI 101 Fundamentals

ICM Security

All Certifications

Let’s Build Something.

Open to security research, freelance development, CTF collaborations, and full-time opportunities.

Get in Touch GitHub NetaNix CTF