Posts by Tag

Andrew Kapaldo

Security researcher & CTF enthusiast

Browse all writeups organized by challenge type and other tags.

202534 20269 AI2 Audio1 AutoIT1 Binary1 CHROOT Escape1 CVE Exploit2 Chrome History Analysis1 Clickfix1 Command Injection4 Cookies1 Diamorphine Rootkit1 EVTX File (Windows Event Log)1 Entra1 Forensics9 Git1 IDOR2 Image Forensics1 Industrial Control System (ICS)1 JSON Web Token (JWT)1 Javascript1 Local File Inclusion (LFI)1 M3651 MD5 Collision1 Malware6 Memory Forensics1 Miscellaneous7 Modbus1 OSINT5 PCAP2 PHP Malware1 PowerShell4 Prompt Injection2 Python1 React2Shell (CVE-2025-55182)1 Robots.txt1 Shamir's Secret Sharing1 Slow-Scan Television (SSTV)1 The Onion Router (TOR)2 Timing Attack1 UUEncoding1 Unrestricted File Upload1 Web15 WinRAR (CVE-2025-8088)1 Windows Notepad Files1 Windows Recycle Bin1 Windows Registry1 Windows Trusted Installer1 XSS1

2025(34)

Week6

2 minute read

🌐 Week 6

Week5

2 minute read

🌐 Week 5

Week4

2 minute read

🤖 Week 4

Week3

18 minute read

🔍 Week 3

Week2

3 minute read

🌐 Week 2

Week1

3 minute read

🕵️ Week 1

Webshellz

less than 1 minute read

🔍 Webshellz

Verify You Are Human

4 minute read

🐞 Verify You Are Human

VX-Underground

1 minute read

📦 vx-underground

Trust Me

less than 1 minute read

📦 Trust Me

Trashcan

2 minute read

🔍 Trashcan

Trapped

less than 1 minute read

⚒️ Trapped

Threat Actor Support Line

less than 1 minute read

📦 Threat Actor Support Line

Tabbys Date

less than 1 minute read

🔍 Tabby’s Date

Spaghetti

1 minute read

🐞 Spaghetti

Sigma Linter

less than 1 minute read

🌐 Sigma Linter

Sandy

less than 1 minute read

🐞 SANDY

Root Canal

2 minute read

📦 Root Canal

Phasing Through Printers

1 minute read

📦 Phasing Through Printers

NetSupport

less than 1 minute read

🐞 NetSupport

Maximum Sound

less than 1 minute read

🔈 Maximum Sound

Lizard

3 minute read

🐞 Lizard.

I Forgot

2 minute read

🔍 I Forgot

For Greatness

less than 1 minute read

🐞 For Greatness

Follow The Money The Sequel

1 minute read

🕵️ Follow The Money: The Sequel

Follow The Money

1 minute read

🕵️ Follow The Money

Flag Checker

less than 1 minute read

🌐 Flag Checker

Emotional

less than 1 minute read

🌐 Emotional

Darcy

less than 1 minute read

🔍 Darcy

Bussing Around

less than 1 minute read

🔍 Bussing Around

Beyblade

less than 1 minute read

🔍 Beyblade

Arika

less than 1 minute read

🌐 ARIKA

Angler

1 minute read

📦 Angler

XMDR

less than 1 minute read

📦 XMDR

2026(9)

When Hearts Collide

2 minute read

🌐 Love at First Breach 2026 - When Hearts Collide

ValenFind

2 minute read

🌐 Love at First Breach 2026 - Valenfind

Try Heart Me

1 minute read

🌐 Love at First Breach 2026 - TryHeartMe

Speed Chat

1 minute read

🌐 Love at First Breach 2026 - Speed Chat

Love Letter Locker

1 minute read

🌐 Love at First Breach 2026 - Love Letter Locker

Deep Into My Heart

1 minute read

🌐 Love at First Breach 2026 - Deep Into my Heart

Cupids Matchmaker

less than 1 minute read

🌐 Love at First Breach 2026 - Cupid’s Matchmaker

Cupid Bot

1 minute read

🤖 Love at First Breach 2026 - CupidBot

Corp Website

1 minute read

🌐 Love at First Breach 2026 - Corp Website

AI(2)

Cupid Bot

1 minute read

🤖 Love at First Breach 2026 - CupidBot

Week4

2 minute read

🤖 Week 4

Audio(1)

Maximum Sound

less than 1 minute read

🔈 Maximum Sound

AutoIT(1)

Sandy

less than 1 minute read

🐞 SANDY

Binary(1)

Trapped

less than 1 minute read

⚒️ Trapped

CHROOT Escape(1)

Trapped

less than 1 minute read

⚒️ Trapped

CVE Exploit(2)

Corp Website

1 minute read

🌐 Love at First Breach 2026 - Corp Website

Threat Actor Support Line

less than 1 minute read

📦 Threat Actor Support Line

Chrome History Analysis(1)

XMDR

less than 1 minute read

📦 XMDR

Clickfix(1)

Verify You Are Human

4 minute read

🐞 Verify You Are Human

Command Injection(4)

Sigma Linter

less than 1 minute read

🌐 Sigma Linter

Phasing Through Printers

1 minute read

📦 Phasing Through Printers

Emotional

less than 1 minute read

🌐 Emotional

Arika

less than 1 minute read

🌐 ARIKA

Cookies(1)

Week6

2 minute read

🌐 Week 6

Diamorphine Rootkit(1)

Root Canal

2 minute read

📦 Root Canal

EVTX File (Windows Event Log)(1)

Webshellz

less than 1 minute read

🔍 Webshellz

Entra(1)

Angler

1 minute read

📦 Angler

Forensics(9)

Week3

18 minute read

🔍 Week 3

Webshellz

less than 1 minute read

🔍 Webshellz

Trashcan

2 minute read

🔍 Trashcan

Tabbys Date

less than 1 minute read

🔍 Tabby’s Date

I Forgot

2 minute read

🔍 I Forgot

Darcy

less than 1 minute read

🔍 Darcy

Darcy

less than 1 minute read

🔍 Darcy

Bussing Around

less than 1 minute read

🔍 Bussing Around

Beyblade

less than 1 minute read

🔍 Beyblade

Git(1)

Week1

3 minute read

🕵️ Week 1

IDOR(2)

Love Letter Locker

1 minute read

🌐 Love at First Breach 2026 - Love Letter Locker

Week5

2 minute read

🌐 Week 5

Image Forensics(1)

Week3

18 minute read

🔍 Week 3

Industrial Control System (ICS)(1)

Bussing Around

less than 1 minute read

🔍 Bussing Around

JSON Web Token (JWT)(1)

Try Heart Me

1 minute read

🌐 Love at First Breach 2026 - TryHeartMe

Javascript(1)

Week2

3 minute read

🌐 Week 2

Local File Inclusion (LFI)(1)

ValenFind

2 minute read

🌐 Love at First Breach 2026 - Valenfind

M365(1)

Angler

1 minute read

📦 Angler

MD5 Collision(1)

When Hearts Collide

2 minute read

🌐 Love at First Breach 2026 - When Hearts Collide

Malware(6)

Verify You Are Human

4 minute read

🐞 Verify You Are Human

Spaghetti

1 minute read

🐞 Spaghetti

Sandy

less than 1 minute read

🐞 SANDY

NetSupport

less than 1 minute read

🐞 NetSupport

Lizard

3 minute read

🐞 Lizard.

For Greatness

less than 1 minute read

🐞 For Greatness

Memory Forensics(1)

I Forgot

2 minute read

🔍 I Forgot

Miscellaneous(7)

VX-Underground

1 minute read

📦 vx-underground

Trust Me

less than 1 minute read

📦 Trust Me

Threat Actor Support Line

less than 1 minute read

📦 Threat Actor Support Line

Root Canal

2 minute read

📦 Root Canal

Phasing Through Printers

1 minute read

📦 Phasing Through Printers

Angler

1 minute read

📦 Angler

XMDR

less than 1 minute read

📦 XMDR

Modbus(1)

Bussing Around

less than 1 minute read

🔍 Bussing Around

OSINT(5)

Week1

3 minute read

🕵️ Week 1

Follow The Money The Sequel

1 minute read

🕵️ Follow The Money: The Sequel

Follow The Money The Sequel

1 minute read

🕵️ Follow The Money: The Sequel

Follow The Money

1 minute read

🕵️ Follow The Money

Follow The Money

1 minute read

🕵️ Follow The Money

PCAP(2)

Webshellz

less than 1 minute read

🔍 Webshellz

Bussing Around

less than 1 minute read

🔍 Bussing Around

PHP Malware(1)

For Greatness

less than 1 minute read

🐞 For Greatness

PowerShell(4)

Verify You Are Human

4 minute read

🐞 Verify You Are Human

Spaghetti

1 minute read

🐞 Spaghetti

NetSupport

less than 1 minute read

🐞 NetSupport

Lizard

3 minute read

🐞 Lizard.

Prompt Injection(2)

Cupid Bot

1 minute read

🤖 Love at First Breach 2026 - CupidBot

Week4

2 minute read

🤖 Week 4

Python(1)

Verify You Are Human

4 minute read

🐞 Verify You Are Human

React2Shell (CVE-2025-55182)(1)

Corp Website

1 minute read

🌐 Love at First Breach 2026 - Corp Website

Robots.txt(1)

Deep Into My Heart

1 minute read

🌐 Love at First Breach 2026 - Deep Into my Heart

Slow-Scan Television (SSTV)(1)

Maximum Sound

less than 1 minute read

🔈 Maximum Sound

The Onion Router (TOR)(2)

Week5

2 minute read

🌐 Week 5

Week4

2 minute read

🤖 Week 4

Timing Attack(1)

Flag Checker

less than 1 minute read

🌐 Flag Checker

UUEncoding(1)

XMDR

less than 1 minute read

📦 XMDR

Unrestricted File Upload(1)

Speed Chat

1 minute read

🌐 Love at First Breach 2026 - Speed Chat

Web(15)

When Hearts Collide

2 minute read

🌐 Love at First Breach 2026 - When Hearts Collide

ValenFind

2 minute read

🌐 Love at First Breach 2026 - Valenfind

Try Heart Me

1 minute read

🌐 Love at First Breach 2026 - TryHeartMe

Speed Chat

1 minute read

🌐 Love at First Breach 2026 - Speed Chat

Love Letter Locker

1 minute read

🌐 Love at First Breach 2026 - Love Letter Locker

Deep Into My Heart

1 minute read

🌐 Love at First Breach 2026 - Deep Into my Heart

Cupids Matchmaker

less than 1 minute read

🌐 Love at First Breach 2026 - Cupid’s Matchmaker

Corp Website

1 minute read

🌐 Love at First Breach 2026 - Corp Website

Week6

2 minute read

🌐 Week 6

Week5

2 minute read

🌐 Week 5

Week2

3 minute read

🌐 Week 2

Sigma Linter

less than 1 minute read

🌐 Sigma Linter

Flag Checker

less than 1 minute read

🌐 Flag Checker

Emotional

less than 1 minute read

🌐 Emotional

Arika

less than 1 minute read

🌐 ARIKA

WinRAR (CVE-2025-8088)(1)

Threat Actor Support Line

less than 1 minute read

📦 Threat Actor Support Line

Windows Notepad Files(1)

Tabbys Date

less than 1 minute read

🔍 Tabby’s Date

Windows Recycle Bin(1)

Trashcan

2 minute read

🔍 Trashcan

Windows Registry(1)

Beyblade

less than 1 minute read

🔍 Beyblade

Windows Trusted Installer(1)

Trust Me

less than 1 minute read

📦 Trust Me

XSS(1)

Cupids Matchmaker

less than 1 minute read

🌐 Love at First Breach 2026 - Cupid’s Matchmaker