Hi, I'm Harikrishnan VJ
Cybersecurity Enthusiast | Focused Purple Teamer | Top 1% @TryHackMe | Penetration Tester
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Passionate Cybersecurity Enthusiast and Purple Teamer exploring network security, digital forensics, and DevOps through hands-on CTFs and continuous learning.
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About Me
Hi, I'm Harikrishnan V J, a passionate Cybersecurity Enthusiast, DevOps Learner, and Blue Team Defender with a strong drive to explore and secure the digital world.
I'm deeply interested in areas like network security, digital forensics, and infrastructure automation. My curiosity for how systems operate—and how they can be made more secure—drives me to constantly learn and evolve in the ever-changing world of tech.
You'll often find me spending time on TryHackMe, sharpening my skills through Capture The Flag (CTF) challenges and hands-on labs that push my problem-solving mindset. I love digging into complex issues, learning how things break, and figuring out how to fix them securely.
I believe in continuous growth, collaboration, and building solutions that make a real impact.
Skills
Digital Forensics
- Autopsy for disk and file system analysis
- FTK Imager for data acquisition
- Evidence preservation & chain of custody
- File metadata and artifact analysis
- Basic memory & network forensics
System Administration
- Linux Administration
- User & Group Management
- Security Implementation
- Service Management
- Automation Scripting
Security
- Penetration Testing
- Threat Detection
- Vulnerability Management
- Risk Management
- Cryptography
- Threat Modeling
Tools & Frameworks
- OSINT Techniques
- MITRE Framework
- Metasploit Framework
- Wireshark
- OWASP Top 10
Programming
- Python
- Bash Scripting
Soft Skills
- Problem Solving
- Long Term Thinking
- Adaptability
- Communication
- Team Collaboration
Projects
VulnScanner
View on GitHubA Dockerized automated security reconnaissance tool for aggressive network scanning using Nmap. Identifies open ports and services on targets, and uses SearchSploit for exploit discovery.
- Performs automated Nmap scans
- Searches for vulnerabilities using SearchSploit
- Containerized for seamless deployment
SharkHunt
View on GitHubA packet analysis CTF designed to test your ability to inspect network traffic and extract hidden data from PCAP files using Wireshark.
- Analyze network traffic using Wireshark
- Extract hex-encoded flag from noisy packet stream
- Designed for CTF environments
DecodeTheLook
View on GitHubA web-based CTF challenge where players inspect source code and decode Base64-encoded flags hidden within the webpage.
- Hidden content in HTML & JavaScript
- Base64 decoding challenge
- Beginner-friendly CTF format
Certifications
CompTIA Security+ CE
Validated expertise in network security, compliance, and threat management.
Quick Heal Certified Digital Forensic Investigator
Certified in digital forensic investigation techniques and tools.
RedHat System Administration II (RH134)
Advanced system administration skills for RedHat Enterprise Linux.
Cybersecurity Fundamentals
Foundational knowledge in cybersecurity principles and risk management.
RedHat System Administration I (RH124)
Foundation level skills in managing RedHat Enterprise Linux systems.
Certified Network Security Engineer Foundation
Validates fundamental expertise in network security and secure network design principles.
Fortinet NSE-2
Demonstrates foundational knowledge in FortiGate firewall configuration, and security best practices.
Fortinet NSE-1
Introduces basic concepts of cybersecurity, network security, and Fortinet products for securing networks and devices.
Education
Bachelor of Technology - Computer Science and Engineering
Lovely Professional University
Intermediate
Girideepam Bethany Central School
Matriculation
Girideepam Bethany Central School