Add AuraStealer yara

[enzok]

No description provided.

[gemini-code-assist]

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 introduces a new detection capability for the AuraStealer malware. It provides a robust YARA rule designed to identify samples of this specific threat, enhancing the overall security posture by enabling proactive detection.

Highlights

• New YARA Rule Added: A new YARA rule named AuraStealer has been introduced to detect the AuraStealer payload.
• Detection Logic: The rule utilizes multiple hex string patterns, including those related to configuration, cryptographic keys, key expansion, and anti-virtual machine techniques, requiring at least three of these patterns to be present for a match.
• Metadata Inclusion: Comprehensive metadata such as author, description, CAPE type, and known unpacked/packed sample hashes are included for improved context and identification.

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[gemini-code-assist]

Code Review

This pull request introduces a new YARA rule for detecting AuraStealer. The rule is well-defined with relevant metadata and multiple hex string signatures. I have a couple of suggestions to enhance the rule's condition for better performance and robustness, and a minor formatting improvement.