Author

Hadeer Amr

@hadir3mr

articles: 12
total claps: 160
top claps: 57
avg read: 6.1 min
active: 2025-01-20 → 2026-06-04

Wiki topics

🔒 · Cybersecurity · 5 🔓 · Open Source · 2 🎬 · Film & Television · 1 LIT · Literature & Writing · 1 MIC · Microbiology & Immunology · 1 CRY · Crypto & Web3 · 1 EDU · Education & Learning · 1

Top tags

#osint ·5 #ctf-writeup ·4 #cybersecurity ·3 #ctf ·2 #sherlock ·2 #dfir ·2 #psychctf ·1 #yandex-images ·1 #google-images ·1 #mcsa ·1

HA Hadeer Amr

CyCTF Luxor — DFIR Writeups

I recently participated in the CyCTF Luxor Online Qualifiers on March 14th. This national competition, powered by Cyshield and hosted at…

Mar 17, 2026 · 5 min read · 57 claps #cyctf #dfir #browser-history

HA Hadeer Amr

Aviation History — THEM?!CTF 2026 Writeup

Category: OSINT | Difficulty: Medium

Jun 04, 2026 · 6 min read · 31 claps #aviation-history #osint #ctf

Aviation History — THEM?!CTF 2026 Writeup

TCH

HA Hadeer Amr

0xfun CTF 2026 — OSINT writeup

My writeups for OSINT challenges from 0xfun CTF and by the way it was too much fun.

Feb 14, 2026 · 8 min read · 18 claps #ctf-writeup #0xfun #osint

TCH

HA Hadeer Amr

OhSINT-TryHackMe Walkthrough

In this challenge, you’re given only a single image and asked to extract as much open-source intelligence (OSINT) as possible. The whole…

Aug 17, 2025 · 4 min read · 15 claps #thm-walkthrough #ohsint #osint

TCH BIO

HA Hadeer Amr

Investigation into MSP Data Breach

Clear Web OSINT Investigation — Course Capstone

Dec 25, 2025 · 4 min read · 12 claps #osint #twitter #virustotal

TCH

HA Hadeer Amr

Eschaton CTF 2026 — OSINT writeup

My writeups for OSINT challenges from Eschaton CTF 2026 Qualifiers.

Feb 03, 2026 · 5 min read · 9 claps #ctf-writeup #osint-investigation #github

TCH

HA Hadeer Amr

Eschaton CTF 2026 — DFIR writeup

My writeups for DFIR challenges from Eschaton CTF 2026 Qualifiers.

Feb 04, 2026 · 6 min read · 6 claps #sql-injection #dfir #ctf

ECO

HA Hadeer Amr

Comparison Between Blockchain Platforms

Imagine a digital notebook that everyone can see and write in, but no one can erase or change what’s already written. That’s the basic idea…

Oct 22, 2025 · 7 min read · 5 claps #blockchain-technology #blockchain-security #ethereum

HA Hadeer Amr

OSINT WriteUp — Overwritten Challenge

As the city lights dimmed and the digital world came alive, I found myself drawn into the intricate puzzle of PsychCTF 2026. The clock had…

Mar 17, 2026 · 4 min read · 5 claps #psychctf #osint #yandex-images

TCH

HA Hadeer Amr

Malware Static Analysis on Game.exe

This write-up shows my steps to perform static analysis on game.exe malware I do it twice one packed and one unpacked to see the difference…

Jan 20, 2025 · 5 min read · 2 claps #cybersecurity #malware-analysis #malware

MDA HUM

HA Hadeer Amr

How I Built a Realistic IT Infrastructure for a Company with 600 Users

When I started working on my MCSA final project, I wanted it to feel as close to real-world IT administration as possible. I didn’t want…

Aug 01, 2025 · 14 min read · 0 claps #mcsa #active-directory #certificate-authority

How I Built a Realistic IT Infrastructure for a Company with 600 Users

TCH HUM

HA Hadeer Amr

Penetration Testing Phases vs Cyber Kill Chain: Two Sides of the Same Coin

In my journey as cybersecurity student passionate with security engineering I decided to return back and continue studying penetration…

Sep 27, 2025 · 7 min read · 0 claps #cybersecurity #cyber-kill-chain #pentesting