Add anti-virtualization WMI signature module

[kevross33]

This module implements an anti-virtualization signature that executes WMI queries to detect virtual machine environments.

[gemini-code-assist]

Summary of Changes

Hello @kevross33, 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 ability to detect virtualized environments by integrating a new anti-virtualization signature module. This module specifically leverages Windows Management Instrumentation (WMI) queries to identify common artifacts and system configurations associated with virtual machines, thereby improving the accuracy of VM detection.

Highlights

• New Anti-Virtualization Signature: Introduced a new signature module, antivm_wmi.py, designed to detect virtual machine environments by executing specific WMI queries.
• WMI Query Analysis: The module analyzes WMI queries for the presence of known filenames (e.g., vboxguest.sys, vmtoolsd.exe) and WMI classes (e.g., win32_bios, win32_computersystem) indicative of virtualization.

🧠 New Feature in Public Preview: You can now enable Memory to help Gemini Code Assist learn from your team's feedback. This makes future code reviews more consistent and personalized to your project's style. Click here to enable Memory in your admin console.

Changelog

• modules/signatures/windows/antivm_wmi.py
  • Added a new signature module for anti-virtualization detection using WMI queries.

Activity

• No specific activity (comments, reviews, progress) has been recorded for this pull request yet.

Using Gemini Code Assist

The full guide for Gemini Code Assist can be found on our documentation page, here are some quick tips.

Invoking Gemini

You can request assistance from Gemini at any point by creating a comment using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands on the current page.

Feature	Command	Description
Code Review	/gemini review	Performs a code review for the current pull request in its current state.
Pull Request Summary	/gemini summary	Provides a summary of the current pull request in its current state.
Comment	@gemini-code-assist	Responds in comments when explicitly tagged, both in pull request comments and review comments.
Help	/gemini help	Displays a list of available commands.

Customization

To customize Gemini Code Assist for GitHub experience, repository maintainers can create a configuration file and/or provide a custom code review style guide (such as PEP-8 for Python) by creating and adding files to a .gemini/ folder in the base of the repository. Detailed instructions can be found here.

Limitations & Feedback

Gemini Code Assist may make mistakes. Please leave feedback on any instances where its feedback is incorrect or counter productive. You can react with 👍 and 👎 on @gemini-code-assist comments. If you're interested in giving your feedback about your experience with Gemini Code Assist for Github and other Google products, sign up here.

You can also get AI-powered code generation, chat, as well as code reviews directly in the IDE at no cost with the Gemini Code Assist IDE Extension.

Footnotes

1. Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configure Gemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution. ↩

[gemini-code-assist]

Code Review

This pull request introduces a new Cuckoo signature, antivm_wmi, designed to detect anti-virtualization attempts via WMI queries. The implementation is sound and directly addresses the goal. My feedback focuses on enhancing the code's efficiency and maintainability. I've suggested combining the separate indicator lists into one and adopting a more Pythonic and performant method for checking WMI queries, which will result in cleaner and more efficient code.