YARA

YARA 4.5.5

The pattern matching swiss knife for malware researchers (and everyone else)

  • By VirusTotal
  • Open Source
  • Updated Oct 30, 2025
Download for Windows

About YARA

YARA is a tool aimed at (but not limited to) helping malware researchers to identify and classify malware samples. With YARA you can create descriptions of malware families (or whatever you want to describe) based on textual or binary patterns. Each description, a.k.a rule, consists of a set of strings and a boolean expression which determine its logic.

What's new in 4.5.5

- Implement the --no-follow-symlinks option in Windows (6e11b5a).
- BUGFIX: Revert YR_RE_SCAN_LIMIT back to 4096 (#2177).
- BUGFIX: infinite loop while parsing corrupt resource directory in PE module (#2162).
- BUGFIX: improved detection whether a string requires all matches (#2167).
- BUGFIX: Heap overflow while loading hand-crafted compiled rules (#2178). Thanks to Momoko Shiraishi
for the report.
Contributors: @secDre4mer @PeterMatula @wxsBSD

Full release notes »

Technical details

PublisherVirusTotal
Version4.5.5
Release date2025-10-30
LicenseBSD-3-Clause
Installer typezip
Architecturex86, x64
Package IDVirusTotal.YARA

Links & install command

Install YARA from the command line with Windows Package Manager (winget):

winget install --id=VirusTotal.YARA -e

Older versions

  • 4.5.3
  • 4.5.2
  • 4.3.2