Author

Excalibra

@excal1bra

articles: 13
total claps: 152
top claps: 51
avg read: 4.6 min
active: 2026-03-13 → 2026-07-25

Wiki topics

🔒 · Cybersecurity · 5 💻 · Programming · 4 🔓 · Open Source · 3 SAF · Safety & Alignment · 2 🔧 · Data Engineering · 1 ECO · Economy · General · 1 🏛️ · Politics · 1 🌐 · Web Development · 1

Top tags

#cybersecurity ·4 #windows ·4 #windows-7 ·3 #coding ·3 #malware ·2 #powershell ·2 #windows-10 ·2 #windows-server ·2 #information-security ·2 #batch-processing ·2

TCH AI

EX Excalibra · MeetCyber

How I Went From Interview Rejections to Building a 200+ Question Open‑Source Cybersecurity Resource

And why I’m giving it away for free.

Jul 25, 2026 · 3 min read · 51 claps #cybersecurity #blue-team #red-team

How I Went From Interview Rejections to Building a 200+ Question Open‑Source Cybersecurity Resource

HUM TCH

EX Excalibra · CodeToDeploy

One-click Script to Set Up a Personal FTP on a Linux Cloud Server

Linux FTP Setup Simplified — documented one-click script with comprehensive comments to facilitate future learning and communication.

Mar 30, 2026 · 7 min read · 50 claps #ftp #linux #servers

One-click Script to Set Up a Personal FTP on a Linux Cloud Server

TCH MKT

EX Excalibra · InfoSec Write-ups

North Korea-Linked Hackers Use GitHub as C2 Infrastructure to Attack South Korea

FortiGuard Labs has identified a sophisticated multi-stage attack campaign attributed to the North Korea-linked threat actor Kimsuky. The…

Apr 08, 2026 · 3 min read · 26 claps #c2 #github #malware

North Korea-Linked Hackers Use GitHub as C2 Infrastructure to Attack South Korea

TCH

EX Excalibra · MeetCyber

Kimsuky Deploys Malicious LNK Files to Implant Python-Based Backdoor in Multi-Stage Attack

Notable Changes Observed in Malicious LNK Files Distributed by Kimsuky Group

Apr 13, 2026 · 5 min read · 21 claps #malware #lnk #cybersecurity

Kimsuky Deploys Malicious LNK Files to Implant Python-Based Backdoor in Multi-Stage Attack

TCH AI

EX Excalibra

Building XORPHER: A Multi-Algorithm XOR Encryption Tool for Red Teaming

I’ve been working on a Python-based XOR encryption tool called XORPHER that’s designed specifically for penetration testers and red teamers…

Mar 31, 2026 · 4 min read · 4 claps #xor #encryption #obfuscation

Building XORPHER: A Multi-Algorithm XOR Encryption Tool for Red Teaming

TCH ECO SOC

EX Excalibra

Batch Processing for Setting IE Homepage, Trusted Security Zones, Compatibility View, and…

Internal network systems, government, and banking websites often require special configurations in IE to ensure smooth and stable operation.

Mar 19, 2026 · 13 min read · 0 claps #batch-processing #batch #hijacking

EX Excalibra

Overview of Creating a Batch File to Disable Windows Updates

Batch file as a transparent and effective solution to disable Windows updates.

Mar 19, 2026 · 4 min read · 0 claps #batch #batch-processing #updates

Overview of Creating a Batch File to Disable Windows Updates

EX Excalibra

Check which shared folders a user has relevant permissions on, and remove those permissions

Viewing User Permissions on Shared Folders and Removing Relevant Permissions

Mar 29, 2026 · 4 min read · 0 claps #windows #security #information-security

Check which shared folders a user has relevant permissions on, and remove those permissions

SPT TCH

EX Excalibra · MeetCyber

Summary of Methods to Obtain MIME Types of Files in Java

In daily work, it's often necessary to determine a file's type. This summary outlines two common principles for identifying file types.

Mar 16, 2026 · 4 min read · 0 claps #java #mime #coding

Summary of Methods to Obtain MIME Types of Files in Java

EX Excalibra

PowerShell — Convert NTFS Folder Security Permissions to Corresponding Share Permissions (Project)

The company is upgrading its domain controllers and shared server hardware, replacing standard desktop machines with professional servers.

Mar 27, 2026 · 4 min read · 0 claps #powershell #ntfs #information-security

PowerShell — Convert NTFS Folder Security Permissions to Corresponding Share Permissions (Project)

TCH

EX Excalibra

XAML

XAML: Extensible Application Markup Language

Mar 13, 2026 · 3 min read · 0 claps #xaml #language #microsoft

EX Excalibra

Three Illustrated Methods to Block Windows 10 Upgrade Prompts on Windows 7/8.1

Microsoft began pushing the Windows 10 upgrade as early as June 2015, primarily via the “Get Windows 10” tool. When the new system was…

Mar 28, 2026 · 3 min read · 0 claps #windows #windows-10 #windows-11

Three Illustrated Methods to Block Windows 10 Upgrade Prompts on Windows 7/8.1

EX Excalibra

Disable “Unsupported PC” Popup on Windows 7

As of January 15, 2020, installations of Windows 7 Service Pack 1 (Starter, Home Basic, Home Premium, and Professional editions) display…

Mar 27, 2026 · 2 min read · 0 claps #windows #windows-7 #windows-server