Jaseer

Jaseer Vk

Cybersecurity Researcher • VAPT • Security Analyst

Cybersecurity Researcher specializing in SIEM-based threat detection, Linux security monitoring, and web, Android & Linux penetration testing. Experienced in developing custom detection rules using Wazuh and mapping alerts to MITRE ATT&CK.

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ABOUT ME

I am a Cybersecurity Researcher, VAPT Specialist, and Security Analyst with a strong focus on Penetration Testing. I specialize in identifying and exploiting vulnerabilities across web applications, Linux systems, Android platforms, and Active Directory environments.

I have hands-on experience conducting security assessments using tools such as Burp Suite, Nmap, Metasploit, SQLmap, Hydra, and Wireshark, with a solid understanding of OWASP Top 10 vulnerabilities and real-world attack methodologies. I regularly simulate attacks including brute-force, privilege escalation, and network reconnaissance to assess and strengthen system security.

In addition to offensive security, I work with SIEM tools like Wazuh and Splunk to analyze attack patterns and map them to the MITRE ATT&CK framework — enabling me to approach security from both attacker and defender perspectives.

I have built and tested multiple lab environments and security projects, including web exploitation scenarios, SSH brute-force detection, network intrusion detection using Suricata, File Integrity Monitoring (FIM), and Active Directory infrastructure with enforced security policies. I also create custom CTF challenges, such as OTP bypass scenarios, to deepen my practical exploitation skills.

With a background in Android and web application development, I understand how applications are built — allowing me to think like a developer while testing like an attacker.

EDUCATION

MAY 2025 - PRESENT

Advanced Diploma in Information Security

Offenso Hackers Academy, Kochi
OCT 2024 - MAR 2025

Android & Web Developer

Riss Technologies, Kannur
2022 - 2025

Bachelor of Computer Application

Kannur University

TECHNICAL SKILLS

Security Domains

Penetration Testing Vulnerability Assessment & Remediation Threat Hunting Incident Response Exploit Research Web & Application Security (OWASP Top 10) Network Security & Traffic Analysis SIEM Engineering & Log Analysis Active Directory Penetration Testing (Enumeration, Privilege Escalation, Credential Attacks) Cloud Security Fundamentals

SIEM & Detection Engineering

Wazuh (Syscheck, Syscollector, Custom Rules, Active Response) Splunk Suricata IDS Snort Auditd File Integrity Monitoring (FIM) Network Intrusion Detection Log Analysis SSH Brute-Force Detection Malicious Command & Privilege Escalation Detection Automated Malware Detection using Wazuh SIEM and Virus Total MITRE ATT&CK Mapping

Web & Network Security Tool

Burp Suite Nmap Metasploit Nessus Wireshark Hydra John the Ripper SQLmap

Android Security Testing Tools

ADB Genymotion Frida Drozer MobSF JADX-GUI

Network Analysis

TCP/IP HTTP/HTTPS DNS SSH Firewalls APIs Cookies Sessions

Cloud Security

AWS IAM Fundamentals Web Application Firewall ( WAF ) Cloud Security Principles

Scripting & Programming

BASH Python HTML

Operating Systems

Kali Linux Ubuntu Windows Server Android

EXPERIENCE

MAY 2025 - PRESENT

Cybersecurity Student Intern

Offenso Hackers Academy, Kochi

  • Performed penetration testing on web applications and Linux systems in a lab environment using Kali Linux, Burp Suite, Nmap, Metasploit, Hydra, SQL Map, and more.
  • Identified vulnerabilities based on OWASP Top 10 and provided remediation recommendations.
  • Simulated brute-force and privilege escalation attacks to assess security posture
  • Conducted basic Active Directory enumeration and network reconnaissance
  • Performed basic Android application penetration testing using tools like MobSF, ADB, Drozer, Frida etc.
  • Monitored and analyzed security events using SIEM tools, simulating real-world SOC operations
  • Investigated alerts, correlated logs, and supported incident detection and response workflows
OCT 2024 - MAR 2025

Android & Web Developer

Riss Technologies, Kannur

  • Developed a full-stack Android and web application “DAYCARE” using Python (Django), MySQL, HTML, and Java to manage childcare workflows efficiently.
  • Managed end-to-end development, including design, backend integration, and deployment
  • Built secure backend services and responsive user interfaces

PROJECTS

Practical security implementations and research labs.

Todo App Icon

To do list Apk

To-Do List App, built with a stylish UI, welcome screen, task priority, completion tracking, delete/clear options, filters, and interactive sound effects.

Get APK
MailboxIntel Icon

Email Analyser

Developed MailboxIntel, a web-based email security analyzer for phishing detection and threat scoring.

Visit Web

Automated Malware Detection

Integrated VirusTotal API with Wazuh to automate hash-based reputation checks and trigger high-severity (Level 12) alerts.

View Repo

SSH Bruteforce Detection

Built a solution using Wazuh SIEM to identify repeated failed login attempts.

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Malicious Command Detection

Linux security monitoring using Auditd and Wazuh SIEM.

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Vulnerability Detection Lab

System inventory and CVE-based detection on Ubuntu.

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Intrusion Detection (IDS)

NID System using Suricata and Wazuh.

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File Integrity Monitoring

Demonstrates implementation of FIM using Wazuh.

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PASSWORD ENFORCER

Client-side security auditor analyzing passwords.

Visit Web

OTP BYPASS CTF

A custom CTF challenge simulating authentication flaws.

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DAYCARE APP

Full-stack Android/Web app built to manage childcare workflows.

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CERTIFICATIONS

CompTIA Pentest+

CompTIA | Ongoing

AWS Security-Specialty

AWS Training & Certification | SEP 2025

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AWS IAM

AWS Training & Certification | SEP 2025

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App Developer

Riss Technologies | MAR 2025

View Certificate

ACHIEVEMENTS

Hack & Seek CTF

Top 10 Position - Offenso Academy

Advent of Cyber 2025

24-Day Challenge Completion

Python Bootcamp

Core Concept Certification

ARP & MITM

Advanced Technique Mastery

Linux Security

Machine Protection Bootcamp

PenTesting Phases

Bug Hunting Methodology

Windows Hacking

Windows Exploit Bootcamp

Cryptography & Steganography

Deep Knowledge Participation