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@enzok enzok commented Oct 28, 2025

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Summary of Changes

Hello @enzok, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the system's malware detection capabilities by refining an existing YARA rule for AdaptixBeacon and introducing a new rule to specifically target NitroBunnyDownloader. These updates aim to broaden the scope of threat identification and ensure more robust security analysis against known and emerging malware families.

Highlights

  • AdaptixBeacon YARA Rule Update: The existing AdaptixBeacon YARA rule has been updated to improve its detection capabilities. This includes extending an existing configuration string pattern and adding two new configuration strings.
  • New NitroBunnyDownloader YARA Rule: A new YARA rule named NitroBunnyDownloader has been added. This rule is designed to identify malware associated with the NitroBunnyDownloader, incorporating specific byte patterns and network-related wide strings.
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Code Review

This pull request updates the AdaptixBeacon Yara rule and introduces a new rule for NitroBunnyDownloader. The changes in AdaptixBeacon.yar generalize the detection patterns, which is a good improvement. However, there's a potential issue with incomplete instruction patterns at the end of the $wininet_* strings that might cause the rule to not match as intended. Additionally, both the modified and the new Yara rule files are missing a final newline character, which is recommended for file consistency and compatibility with various tools.

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