YARA is a tool aimed at (but not limited to) helping malware researchers to identify and classify malware samples. With YARA you can create descriptions of malware families (or whatever you want to describe) based on textual or binary patterns. Each description, a.k.a rule, consists of a set of strings and a boolean expression which determine its logic. Let's see an example:
Semble: Fast and Accurate Code Search for Agents
Fast and Accurate Code Search for Agents. Uses ~98% fewer tokens than grep+read
weggli-rs/weggli
weggli is a fast and robust semantic search tool for C and C++ codebases. It is designed to help security researchers identify interesting functionality in large codebases.
Warnings for pattern matching
We examine the ML pattern-matching anomalies of useless clauses and non-exhaustive matches. We state the definition of these anomalies, building upon pattern matching semantics, and propose a simple algorithm to detect them. We have integrated the algorithm in the Objective Caml compiler, but we show that the same algorithm is also usable in a non-strict language such as Haskell. Or-patterns are considered for both strict and non-strict languages.
Kaitai Struct: declarative binary format parsing language
Kaitai Struct is a formal language for binary format specification that can be compiled into parser code
Game Programming Patterns
I’m here to help! Game Programming Patterns is a collection of patterns I found in games that make code cleaner, easier to understand, and faster.
morluto/rea
Reverse engineer anything with agents, from app behavior down to native binaries.
Agentic Engineering Patterns - Simon Willison's Weblog
Patterns for getting the best results out of coding agents like Claude Code and OpenAI Codex. See my introduction for more on this project.
angr — the binary analysis platform
The powerful, user-friendly Python platform for analyzing binaries. Decompilation, symbolic execution, and more in one scriptable toolkit.
A New Tool Found Malware That’s Guided by an AI Hive Mind—No Humans in Sight
Cisco Talos researchers created a new framework for identifying malware and hacking tools that rely on AI chatbots—and quickly discovered something unusual.
A Pattern Language for Interfaces | Notion
System → Programs → Apps
What is a pattern, and what isn't? | daily.dev
An essay argues that the word 'pattern' has suffered semantic diffusion, with techniques, practices, and designs incorrectly labeled as patterns. It defines a...
Varv: Reprogrammable Interactive Software as a Declarative Data Structure
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DataLicenses.org
Machine-readable hints for AI agents/crawlers; easy to adopt, rely on compliance.
joxeankoret/diaphora
Diaphora, the most advanced Free and Open Source program diffing tool.
Similarity
Search, explore and see related notes based on their meaning (semantics). Using a tiny AI running fully on-device: data never leaves your machine, no API keys needed. Especially great for journaling.