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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.[1] The language used has traits of Perl compatible regular expressions.[2][3]


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.[4]


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


  1. ^ https://yara.readthedocs.io/en/v3.5.0/index.html
  2. ^ "Signature-Based Detection With YARA". Retrieved 28 Nov 2016.
  3. ^ "Remove Duplicate Yara Rules with PowerShell Regular Expressions". Retrieved 28 Nov 2016.
  4. ^ Victor M. Alvarez [@plusvic] (22 September 2016). "@milliped @yararules YARA is an ancronym for: YARA: Another Recursive Ancronym, or Yet Another Ridiculous Acronym. Pick your choice" (Tweet) – via Twitter.

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