Readest is a modern, feature-rich ebook reader designed for avid readers offering seamless cross-platform access, powerful tools, and an intuitive interface to elevate your reading experience.

A random collection of (mostly security related) scripts for Microsoft Windows, Active Directory and other Microsoft products.

Exchange Reporter creates email reports with statistics for Exchange Server

Scripts to build a trimmed-down Windows 11 image.

A collection of resources to learn Reverse Engineering from start!

My conference presentations

Open source DocuSign alternative. Create, fill, and sign digital documents ✍️

Take potentially dangerous PDFs, office documents, or images and convert them to safe PDFs

This PowerShell Module has multiple functionalities, but one of the signature features of this module is the ability to parse Security logs on Domain Controllers providing easy to use access to AD …

a collection of links on various security topics

a collection of differently important stuff about mobile phones

Defeating Windows User Account Control

game of active directory

DevOps Roadmap for 2025. with learning resources

Python Learning Library

Sysmon event simulation utility which can be used to simulate the attacks to generate the Sysmon Event logs for testing the EDR detections and correlation rules by Blue teams.

😎 Awesome lists about all kinds of interesting topics

A curated list of amazingly awesome open-source sysadmin resources.

A list of Free Software network services and web applications which can be hosted on your own servers

Schutz vor Fakeshops, Werbung, Tracking und anderen Angriffen aus dem Internet

PowerShell Script to apply ExchangeHealthChecker recommendations

🖼️ Visualize how common Git operations affect the commit graph

WinMerge is an Open Source differencing and merging tool for Windows. WinMerge can compare both folders and files, presenting differences in a visual text format that is easy to understand and handle.

Play lunar lander in you windows file copy dialog

PowerShell toolkit for AD CS auditing based on the PSPKI toolkit.

Tool for Active Directory Certificate Services enumeration and abuse

BlueHound - pinpoint the security issues that actually matter