Best Private Yara Rules Repository Alternatives & Competitors in 2026

Yara Rules Project

A repository of Yara signatures under the GNU-GPLv2 license for the cybersecurity community.

Cythereal MAGIC EWS

Analyzes stopped attacks to auto-generate YARA rules and IoCs against APTs.

PhishingKit-Yara-Rules

A StalkPhish Project YARA repository for Phishing Kits zip files.

CDI_yara

A collection of YARA rules for public use, built from intelligence profiles and file work.

Canadian Centre for Cyber Security CCCS YARA Specification

Define and validate YARA rule metadata with CCCS YARA Specification.

Yara-Repo

Collects Yara rules from over 150 free resources, a free alternative to Valhalla.

yara-rust

Bindings for the Yara library from VirusTotal with support for Yara v4.2 and various features like rule compilation and scanning.

ThreatKB

Knowledge base workflow management dashboard for YARA rules and C2 artifacts.

KLara

KLara is a distributed system written in Python that helps Threat Intelligence researchers hunt for new malware using Yara.

Signature-Base

YARA signature and IOC database for LOKI and THOR Lite scanners with high quality rules and IOCs.

Project Icewater

A project providing open-source YARA rules for malware and malicious file detection

Yara Rule Generator

A tool for quick and effective Yara rule creation to isolate malware families and malicious objects.

Yara-Rules Repository

Repository of YARA rules for Trellix ATR blogposts and investigations

Malware Signatures Overview

A collection of Yara signatures developed by Citizen Lab to detect malware used in targeted attacks against civil society organizations.

YARA Rules Collection

Collection of YARA signatures from recent malware research.

Detection Content Repository

Repository for detection content with various types of rules and payloads.

Malware Indicators of Compromise

Provides indicators of compromise (IOCs) to combat malware with Yara and Snort rules.

yara_rules

A collection of YARA rules for Windows, Linux, and Other threats.

FireEye Red Team Tool Countermeasures

A set of rules for detecting threats in various formats, including Snort, Yara, ClamAV, and HXIOC.

FireEye Mandiant SunBurst Countermeasures

FireEye Mandiant SunBurst Countermeasures: freely available rules for detecting malicious files and activity

im0rtp3's Yara rule repository

A collection of Yara rules licensed under the DRL 1.1 License.

YARA-Signatures

A collection of public YARA signatures for various malware families.

Malpedia's YARA-Signator Rules

Repository of automatically generated YARA rules from Malpedia's YARA-Signator with detailed statistics.

VT_RuleMGR.py

Tool for managing Yara rules on VirusTotal

Google Security Operations

Cloud-native SIEM, SOAR, and threat intel platform for SecOps teams

Binary Defense Threat Hunting

A managed security service that uses hypothesis-based threat hunting to proactively discover hidden threats, create new detection rules, and improve overall security posture.

detections.ai Detections

Community platform for sharing and creating detection rules with AI

Axur AI-Powered Cyber Threat Intelligence

AI-powered cyber threat intelligence platform with real-time monitoring

SOC Prime Threat Detection Marketplace

Threat detection marketplace with Sigma rules for SIEM and shift-left detection

Red Canary Threat Intelligence

Threat intelligence service providing threat profiles and analytics for MDR

Defender Lens

Turn Any Threat into a Detection Rule

aDolus FACT - Malware Detection

FACT detects malware & ransomware in packages using AV scans & YARA rules.

Cythereal MAGIC™

Malware hunting platform that auto-generates YARA rules from shared code analysis.

Sesame IT HOSHI

Curated attack use case platform that feeds threat scenarios into Jizô AI.

OCyara

OCyara performs OCR on images and PDF files to extract text content and scan it against Yara rules for malware detection.

Yara Pattern Scanner

A Windows context menu integration tool that scans files and folders for malware patterns, crypto signatures, and malicious documents using Yara rules and PEID signatures.

Sublime Security Sublime Rules

Open-source detection rules for email attacks like BEC, phishing, and malware

InQuest Labs

The Trystero Project is a threat intelligence platform that measures email security efficacy and provides various tools and resources, while VMware Carbon Black offers endpoint protection and workload security solutions.

THOR Lite

A free, fast, and flexible multi-platform IOC and YARA scanner for Windows, Linux, and macOS.

Yara Manager

A program to manage yara ruleset in a database with support for different databases and configuration options.

Yabin

Yabin creates Yara signatures from malware to find similar samples.

yextend

yextend extends Yara's functionality by automatically handling archived and compressed content inflation, enabling pattern matching on files buried within multiple layers of archives.

YaraParser

Python 3 tool for parsing Yara rules with ongoing development.

Mquery

Blazingly fast Yara queries for malware analysts with an analyst-friendly web GUI.

Factual Rules Generator

An open source tool that generates YARA rules from installed software on running operating systems for efficient software identification in digital forensic investigations.

Yara Validator

A tool for validating and repairing Yara rules

CrowdFMS

CrowdFMS is a CrowdStrike framework that automates malware sample collection from VirusTotal using YARA rule-based notifications and the Private API system.

Yara4Pentesters

A collection of YARA rules designed to identify files containing sensitive information such as usernames, passwords, and credit card numbers for penetration testing and forensic analysis.