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Create net_connection_win_susp_azurefd_connection.yml #5077

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IsaacDunham
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@IsaacDunham IsaacDunham commented Nov 11, 2024

Summary of the Pull Request

Adds detection rule for anomalous connections to Azure Front Door, a LOTS Project known documented potential C2 site. Pre-tuned to eliminate most false positives and validated against demo suspicious Azure Front Door connection.

This rule tunes out nearly all noise, but still has too poor a signal:noise ratio to be an alertable detection, thus I am placing this in the Threat Hunting rule collection.

Changelog

new: Potentially Suspicious Azure Front Door Connection

Example Log Event

Fixed Issues

SigmaHQ Rule Creation Conventions

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

Detects anomalous connections to Azure Front Door, a LOTS Project known documented potential C2 site. Pre-tuned to eliminate most false positives and validated against demo suspicious Azure Front Door connection.
@github-actions github-actions bot added Rules Windows Pull request add/update windows related rules labels Nov 11, 2024
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Welcome @IsaacDunham 👋

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! 😃

@nasbench nasbench self-assigned this Nov 13, 2024
@nasbench nasbench added the Work In Progress Some changes are needed label Nov 13, 2024
@nasbench nasbench added 2nd Review Needed PR need a second approval and removed Work In Progress Some changes are needed labels Nov 13, 2024
@nasbench nasbench removed the 2nd Review Needed PR need a second approval label Nov 17, 2024
@nasbench nasbench merged commit 503bd67 into SigmaHQ:master Nov 17, 2024
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3 participants