8000 Add correlation rules from AT project by tonifef · Pull Request #5415 · SigmaHQ/sigma · GitHub
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Add correlation rules from AT project #5415

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Add correlation rules from AT project #5415

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@tonifef tonifef commented May 13, 2025 •
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Summary of the Pull Request

Adding three new correlation rules that reduce false positives in the detection of ambiguous attack techniques.

Changelog

new: Domain Account Discovery Correlation - Multiple discovery command usage
new: File and Directory Discovery Correlation - Discovery indicative of ransomware using Bitlocker
new: Archive Collected Data Correlation - Multiple instances of archiving activity observed

Example Log Event

Detailed info on analytic development can be found at the following links:

Fixed Issues

SigmaHQ Rule Creation Conventions

  • If your PR adds new rules, please consider following and applying these conventions

tonifef added 3 commits May 13, 2025 14:23
@tonifef
Create proc_creation_win_discovery_commands.yml
e04b771 
New correlation rule looking at a loose correlation of discovery commands being run
@tonifef
Create proc_creation_discovery_ransomware.yml
9346c38 
Correlation rule to look for discovery commands followed by suspicious BitLocker activity indicative of malicious intent
@tonifef
Create proc_creation_multiple_archive.yml
3808dc8 
Detects multiple uses of archiving utilities indicative of staging activity
@github-actions github-actions bot added Rules Windows Pull request add/update windows related rules labels May 13, 2025
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Welcome @tonifef 👋

It looks like this is your first pull request on the Sigma rules repository!

Please make sure to read the SigmaHQ conventions document to make sure your contribution is adhering to best practices and has all the necessary elements in place for a successful approval.

Thanks again, and welcome to the Sigma community! 😃

@tonifef tonifef changed the title Tonifef newadditions Add correlation rules from AT project May 13, 2025
@tonifef tonifef marked this pull request as draft May 21, 2025 15:51
@tonifef tonifef marked this pull request as ready for review May 21, 2025 15:51
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Hi @tonifef, we are not ready to integrate Sigma v2 correlation rules to the rules repo yet. We will keep this PR open until we are ready to do so and then start working on integrating it.

@nasbench nasbench marked this pull request as draft June 4, 2025 15:37
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Correlation-Rules Rules Windows Pull request add/update windows related rules
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