OpenPRX

PRX-SD

Open-source antivirus engine

Multi-layered threat detection engine for files and directories.

Language: Rust License: Apache-2.0

Repository

Key Features

Hash Signature Matching

O(1) LMDB lookup against millions of SHA-256/MD5 hashes from MalwareBazaar, URLhaus, VirusShare, and more.

YARA Rule Engine

64+ built-in rules plus community rulesets from Neo23x0, Yara-Rules, ReversingLabs, ESET, and InQuest.

Heuristic Analysis

PE/ELF/MachO-aware entropy, suspicious API, packer detection, and behavioral scoring.

Real-time Monitoring

Watch directories for new or modified files with automatic scanning.

Quarantine System

Isolate, list, and restore detected threats with a built-in quarantine vault.

Cross-Platform

Native support for Linux, macOS, and Windows with platform-specific detections.

Architecture

File Input → Magic Detection (PE/ELF/MachO/PDF/ZIP)

↓

Hash Match

LMDB O(1)

→

YARA Scan

Pattern Match

→

Heuristic

Score ≥60

↓

Result: Clean / Suspicious / Malicious

Tech Stack

Rust, YARA, LMDB, Tauri + Vue 3

Quick Start

curl -fsSL https://raw.githubusercontent.com/openprx/prx-sd/main/install.sh | bash
sd scan /path/to/check
sd monitor /home /tmp

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