Sigma rule specification

HardeningKitty and Windows Hardening Settings

MAL-CL (Malicious Command-Line)

Standard collection of rules for capa: the tool for enumerating the capabilities of programs

A list of cyber-chef recipes and curated links

A collection of awesome penetration testing resources, tools and other shiny things

Python tool and library for decrypting and encrypting MS Office files using passwords or other keys

An introduction to Active Directory security

Main Sigma Rule Repository