YARA Rule Checker

Upload files and YARA rules to scan for malware patterns and security threats

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About This Tool

The YARA Checker is a powerful online tool that allows security researchers, malware analysts, and developers to scan files against YARA rules. YARA is a tool aimed at helping malware researchers identify and classify malware samples. With this tool, you can upload files (executables, documents, scripts) and YARA rules to detect patterns, strings, and conditions that match known malware signatures or suspicious code patterns. The tool compiles the YARA rules and scans the uploaded files, providing detailed results including matched rules, rule metadata, and file information.

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How to Use

Upload one or more files you want to scan using the file upload area
Enter YARA rules in the text area or upload a .yar/.yara file containing rules
Click the 'Scan Files' button to start the analysis
View the results showing which rules matched, rule details, and file information
Use the 'Clear All' button to reset the form and start a new scan

Frequently Asked Questions

Find Quick Answers

What is YARA?

YARA is a tool primarily used in malware research and detection. It allows you to create descriptions of malware families based on textual or binary patterns. Each description (called a rule) consists of a set of strings and a boolean expression that determines its logic.

What file types can I scan?

You can scan any file type including executables (.exe, .dll), documents (.pdf, .doc), scripts (.js, .py), and binary files. The YARA engine analyzes files at the binary level, so it works with any file format.

Do I need to install anything to use this tool?

No installation is required on your side. The tool runs entirely in your browser for the interface, with server-side processing for the actual YARA scanning. However, the server needs the PHP yara extension installed (handled by the platform administrators).

Can I use multiple YARA rules at once?

Yes, you can enter multiple YARA rules in the text area or upload a .yar/.yara file containing multiple rules. The tool will compile and apply all rules to each uploaded file.

Is there a file size limit?

The tool can handle files up to 50MB. For larger files, consider splitting them or using specialized offline YARA tools for better performance.

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