YARA is the name of a tool primarily used in malware research and detection.
It provides a rule-based approach to create descriptions of malware families based on textual or binary patterns. A description is essentially a Yara rule name, where these rules consist of sets of strings and a boolean expression. The language used has traits of Perl compatible regular expressions.
Description
YARA was originally developed by Victor Alvarez of Virustotal. The name is either an abbreviation of YARA: Another Recursive Acronym, or Yet Another Ridiculous Acronym. YARA by default comes with modules to process PE, ELF analysis, as well as support for the open-source Cuckoo sandbox.
References
YARA Wikipedia(Text) CC BY-SA