YARA

YARA is a tool primarily used in malware research and detection.

It provides a rule-based approach to create descriptions of malware families based on regular expression, textual or binary patterns. A description is essentially a YARA rule name, where these rules consist of sets of strings and a Boolean expression.^[1]

YARA was originally developed by Victor Alvarez of VirusTotal and released on GitHub in 2013.^[2] The name is an abbreviation of YARA: Another Recursive Acronym or Yet Another Ridiculous Acronym.^[3] In 2024, Alvarez announced that YARA would be superseded by a rewrite called YARA-X, written in Rust.^[4] A first stable version of YARA-X was released in June 2025, marking the passage of the original YARA into maintenance mode.^[5]

YARA by default comes with modules to process PE, ELF analysis, as well as support for the open-source Cuckoo sandbox.

• Sigma
• Snort

• on GitHub
• YARA documentation

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