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.

History
YARA was originally developed by Victor Alvarez of VirusTotal and released on GitHub in 2013. The name is an abbreviation of YARA: Another Recursive Acronym or Yet Another Ridiculous Acronym.

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