Skip to content
View xElkomy's full-sized avatar
🎯
Focusing
🎯
Focusing

Block or report xElkomy

Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
xElkomy/README.md

Hi there, I’m Khaled Karimeldin aka "xElkomy" 👋

Bug Hunter · Security Researcher · Pentester


🧠 About Me

I’m a passionate Information Security professional based in Egypt, specialising in 🐞 Bug Bounty (HackerOne, Detectify Crowdsource), and hands-on penetration testing across Web, Mobile & Infrastructure.
I thrive on solving hard challenges, writing detailed exploit write-ups, and sharing what I learn with the community.


🚀 What I Do

  • Participate actively in bug-bounty platforms (HackerOne, Detectify) and produce high-impact reports.
  • Explore advanced mobile/Android attack surfaces (e.g., AIDL-based IPC: Root Bypassing, Intent Hacking).
  • Dive deep into Windows authentication protocols (NTLM v1/v2, Kerberos, MSCache2) as part of infrastructure pentesting.
  • Create PoCs, publish write-ups and open-source vulnerable machines / CTF repos to help others learn.

🧰 Skills & Technologies

Pentesting focus: Web Applications (JSF, XHTML, APIs), Mobile (Android AIDL, Messenger IPC), Infrastructure (Active Directory, NTLM, Kerberos)
Tools & Languages:

Java Python Android Bash GitHub


📂 Featured Projects

Project Description
Workflow-Bug-Bounty A curated toolkit for bug hunters: custom fuzzers, recon scripts & documentation to accelerate vulnerability discoveries.
FindSomething-arabic Browser extension (Arabic language) to aid pentesters in discovering important paths/info in webpages & JS files — works passively (no outbound requests).
Monitorizer Multithreaded monitoring and alert framework for subdomain discovery & scanning (supports Nuclei, Acunetix) — built for infrastructure-/automation-focused pentests.
check-put.sh (Gist) Lightweight bash script example to test HTTP PUT method on target hosts — demonstrates scripting for quick reconnaissance checks.

📣 Currently Learning / Working On

  • Exploring post‐exploitation on Android via Binder & AIDL services.
  • Writing a blog series on Windows authentication vulnerabilities (NTLM, Kerberos, domain trust chasing).
  • Preparing for advanced pentest engagements: business-impact testing, cross-stack (web/mobile/infra) for 2025.

📫 Let’s Connect

LinkedIn
Blog
Twitter
✉️ xelkomy@duck.com


🌐 Languages

🇬🇧 English (Professional) · 🇪🇬 العربية (Native)


📌 Quick Stats

GitHub Stats
Top Languages

“Always be learning. Always be hunting.”

Pinned Loading

  1. Workflow-Bug-Bounty Workflow-Bug-Bounty Public

    My Tools For Bug Bounty

    Shell 68 21

  2. check-put.sh check-put.sh
    1
    #!/bin/bash
    2
    # the script will test for PUT upload method against all the hosts
    3
    # Thanks shibli2700 https://github.com/shibli2700/Rekon/blob/master/puttest.sh
    4
    for domain in $(cat $1)
    5
    do
  3. lazys3 lazys3 Public

    Forked from nahamsec/lazys3

    Ruby 2