Chennai, Tamil Nadu, India

Ajay Anandan

Ajay Anandan.

B.Sc. Computer Science student building offensive security tools from the ground up. I built a production C2 framework during internship, automated a full bug bounty recon pipeline, and solved 31 CTF challenges — all documented, all on GitHub.

31+
CTF Challenges Solved
6+
Security Projects
164K
Emails — Phishing Model
97.97%
ML Model Accuracy

About Me

I'm a final-year B.Sc. Computer Science student at Prince Shri Venkateshwara Arts & Science College, Chennai — CGPA 8.09/10, graduating April 2027. I don't study security. I practice it. My entire focus is offensive security: understanding how systems break, building the tools that break them, and documenting every step.

At Femtosoft Technologies, I wasn't given a task list — I built NightShade from scratch. A production C2 framework with AES-128 encrypted comms, anti-sandbox evasion using RAM, CPU, and process-count fingerprinting, Windows registry persistence, and stealth self-sanitization. The kind of thing you read about in threat intel reports. I wrote it.

At Thiranex, I built four independent security projects during internship — a secure login system, a phishing detection model trained on 164K emails, a CVE-linked vulnerability scanner, and a password strength analyzer. All production-grade. All on GitHub.

I'm currently deep in a 90-day red team skill lock-in: Linux mastery, Active Directory, BloodHound, Kerberoasting, and bug bounty hunting. I also build hardware — planning a custom wireless C2 implant from PCB design to embedded Linux before graduation.

Security Projects

NightShade C2 Framework

Red Team

Production-grade encrypted C2 framework built during internship at Femtosoft Technologies. AES-128 encrypted comms, anti-sandbox evasion via RAM/CPU/process fingerprinting, Windows registry persistence, stealth execution, and self-sanitization modules. Modular architecture separates server, agent, and encryption layer.

  • Python
  • AES-128
  • Flask
  • Cryptography
  • pynput
Deep Dive →

RedChain-Kit

Bug Bounty

Automated kill-chain recon pipeline: subfinder + amass → httpx → katana → nuclei. Regex-based exploit hint classifier flags SQLi, IDOR, open redirect, path traversal, and exposed admin endpoints. Dual-format output (PDF + HackerOne-ready Markdown). Flask dashboard with SQLite history tracks attack surface changes over time.

  • Python
  • nuclei
  • subfinder
  • Flask
  • SQLite
  • FPDF2
Deep Dive →

Phishing Email Detection Model

ML · Security

Random Forest classifier trained on 164,000+ emails achieving 97.97% accuracy — outperforming baseline Naive Bayes by 4.2 percentage points. Features: URL patterns, TF-IDF keyword frequency, sender domain reputation, header anomalies. 98.1% precision to minimise false positives in production.

  • Python
  • Scikit-learn
  • TF-IDF
  • Random Forest
  • Pandas
Deep Dive →

Secure Login System

AppSec

Production-grade authentication system: Argon2id password hashing, SQLAlchemy ORM eliminating SQL injection, CSRF tokens on all state-changing forms, per-IP rate limiting, temporary account lockout, and secure cookie flags (HttpOnly, Secure, SameSite). Zero known injection or session vulnerabilities.

  • Flask
  • Argon2
  • SQLAlchemy
  • Flask-WTF
  • SQLite
Deep Dive →

Vulnerability Scanner

Tooling

Port and vulnerability scanner integrating the NVD API to cross-reference detected software versions against live CVE feeds. Generates structured PDF assessment reports with CVSS severity tiers via FPDF2.

  • Python
  • NVD API
  • FPDF2
  • Socket
Deep Dive →

Password Strength Analyzer

Tooling

Entropy scoring, complexity enforcement, and breach-database reuse prevention. Shannon entropy calculation, pattern detection, and credential database integration to reduce weak credential risk at account creation.

  • Python
  • JavaScript
  • HTML/CSS
  • Shannon Entropy
Deep Dive →

Work Experience

Jun 2026 – Jul 2026 · Remote

Cyber Security Intern

Thiranex
  • Built production-grade secure login system (Flask + Argon2 + SQLAlchemy) with CSRF protection, brute-force rate limiting, and account lockout — deployable with zero known injection or session vulnerabilities.
  • Trained phishing email detection model (Random Forest + TF-IDF) on 164K+ emails achieving 97.97% accuracy.
  • Developed port and vulnerability scanner integrating NVD API with CVE cross-referencing and PDF reporting.
  • Built password strength analyzer with entropy scoring and breach-database reuse prevention.
Dec 2025 – Jan 2026 · On-site, Chennai

Cyber Security Intern

Femtosoft Technologies
  • Designed and built NightShade — an encrypted C2 framework (AES-128) for authorized offensive security research.
  • Implemented anti-sandbox detection via RAM/CPU/process fingerprinting, Windows registry persistence, and stealth self-sanitization modules.
  • Researched real-world red-team TTPs including payload evasion, process injection, and forensic countermeasures.

CTF Competitions and Writeups

31+

Challenges solved on picoCTF picoGym across Web Exploitation and Forensics. All documented with full methodology in public writeup repository.

23 Easy 7 Medium 1 Hard

Web Exploitation

IDOR · PostgreSQL SQLi · SSTI → RCE · File upload bypass · Rate-limit bypass via X-Forwarded-For spoofing · Session hijacking · Credential stuffing · SQLMap-based injection · Authentication bypass · 2FA bypass · robots.txt recon · Hash-based access control bypass · HTTP header inspection

Forensics

Binary digit analysis · File corruption recovery · Steganography (hidden in plain sight) · Registry-based artifact analysis · Disk image forensics (DISKO 1) · Base64-encoded PNG extraction · Hex decoding · Magic byte repair

Automated multi-step attacks using Python (requests, socket, hashlib) — scripted recon and exploitation across challenge categories.

Technical Skills and Expertise

Security Tools

  • Burp Suite
  • Metasploit
  • Nmap
  • Wireshark
  • nuclei · subfinder · httpx
  • FFUF · Netcat

Languages

  • Python (primary)
  • Bash
  • JavaScript
  • Java
  • HTML / CSS

Security Concepts

  • Penetration Testing
  • Red Teaming
  • OSINT
  • Threat Intelligence
  • Vulnerability Assessment
  • Incident Response
  • SIEM
  • IAM

Frameworks & Tools

  • Flask · FastAPI
  • SQLAlchemy · Flask-WTF
  • Scikit-learn
  • React
  • Git · GitHub
  • SQLite · REST APIs
  • NVD API · FPDF2

Networking

  • TCP/IP
  • DNS · HTTP/S
  • Network Security
  • Linux

Certifications and Training

IBM
Cybersecurity Fundamentals
Dec 2025
IBM
Getting Started with Threat Intelligence and Hunting
Dec 2025
IBM
Getting Started with Cybersecurity
Dec 2025
Mastercard · Forage
Cybersecurity Job Simulation
Jun 2026
TCS · Forage
Cybersecurity Analyst Job Simulation
Jun 2026

Get In Touch

I'm a final-year student open to internships, research collaborations, bug bounty team-ups, and security conversations. If you're building something in offensive security or need someone who actually reads CVEs for fun — let's talk.

Send Email →