YaraXSharp 1.0.0

There is a newer version of this package available.
See the version list below for details.
dotnet add package YaraXSharp --version 1.0.0
                    
NuGet\Install-Package YaraXSharp -Version 1.0.0
                    
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="YaraXSharp" Version="1.0.0" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="YaraXSharp" Version="1.0.0" />
                    
Directory.Packages.props
<PackageReference Include="YaraXSharp" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add YaraXSharp --version 1.0.0
                    
#r "nuget: YaraXSharp, 1.0.0"
                    
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#:package YaraXSharp@1.0.0
                    
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=YaraXSharp&version=1.0.0
                    
Install as a Cake Addin
#tool nuget:?package=YaraXSharp&version=1.0.0
                    
Install as a Cake Tool

Yara-X Sharp

A simple wrapper for Yara-X around the Yara-X C/C++ API.

You can find the Nuget package here.

Requirements

For versions 0.0.3 and below, bring your own yara_x_capi.dll which you can find here.

Usage

/*
 * New Compiler instance.
 * You can pass multiple params from YRX_COMPILE_FLAGS.
 * E.g. new Compiler(YRX_COMPILE_FLAGS.YRX_ERROR_ON_SLOW_PATTERN)
 */
var yara = new Compiler();
yara.AddRuleFile("./eicar.yar");
var (rules, errors, warnings) = yara.Build(); // Compiled rules to be used in Scanner.

Scanner scanner = new Scanner(rules, YRX_SCANNER_FLAGS.LOAD_METADATA, YRX_SCANNER_FLAGS.LOAD_PATTERNS);
scanner.scan("./eicar.txt");
List<Match> results = scanner.Results();

foreach (Match rule in results) {
  Console.WriteLine($"Pattern match count: {rule.Patterns.Count}");
  Console.WriteLine(rule.Metadata["malware_family"]);
}

// Make sure to destroy.
scanner.Destroy();
yara.Destroy();

Or

using (var yara = new Compiler())
{
  yara.AddRuleFile(Path.Combine(Environment.CurrentDirectory, "../../../", "eicar.yar"));
  yara.AddRuleFile(Path.Combine(Environment.CurrentDirectory, "../../../", "eitwo.yar"));
  var (rules, errors, warnings) = yara.Build();

  Console.WriteLine($"Number of rules: {rules.Count()}");

  using (Scanner scanner = new Scanner(rules, YRX_SCANNER_FLAGS.LOAD_METADATA, YRX_SCANNER_FLAGS.LOAD_PATTERNS))
  {
      scanner.Scan(Path.Combine(Environment.CurrentDirectory, "eicar.txt"));
      List<Match> results = scanner.Results();
      Console.WriteLine($"Matches: {results.Count}");

      foreach (Match rule in results)
      {
          Console.WriteLine($"Pattern match count: {rule.Patterns.Count}");
          Console.WriteLine(rule.Metadata["malware_family"]);
      }
  }
}

Reference

To-Dos

  • Compiler flags
  • Compiler error and warnings Unpredictable behavior
  • Scanner timeout
  • Iterate matched rule patterns and tags
  • File streaming for scanning large files BYO

Compatibility

Yara-X Release Version Wrapper Version
1.4.0 0.0.1, 0.0.2, 0.0.3, 0.0.4, 0.0.5, 0.1.0, 1.0.0
Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1.0.3 12 8/20/2025
1.0.2 95 8/13/2025
1.0.2-rc.2 151 8/8/2025
1.0.2-rc 151 8/8/2025
1.0.1 71 8/1/2025
1.0.0 110 7/31/2025
0.1.0 490 7/22/2025
0.0.5 114 7/16/2025
0.0.4 133 7/14/2025
0.0.3 133 7/13/2025
0.0.2 95 7/13/2025
0.0.1 61 7/12/2025