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Nterl0k - T1036 LOLBASh Your Face #3005

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merged 14 commits into from
Jul 26, 2024

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nterl0k
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@nterl0k nterl0k commented May 3, 2024

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This PR has 2 detections aiming at LOLBAS usage from unusual locations or when renamed. Some false positives are expected based on testing in a production environment, however they are low enough to be easily filtered.

Updated LOLBAS File Path lookup (which was unused in other content) with current data from LOLBAS project. Also corrected a number of erroneous entries in the data to prevent excessive false positives. Added wildcard file path matching on lookup definition to enable detections above.

Pending splunk/attack_data#893

image

Checklist

  • Validate name matches <platform>_<mitre att&ck technique>_<short description> nomenclature
  • CI/CD jobs passed ✔️
  • Validated SPL logic.
  • Validated tags, description, and how to implement.
  • Verified references match analytic.

Updates to add file path as wildcard and only return 1 result for cleaner output
Added a number of corrects based on production environment usage and errors in lolbas project source data. Update for 2024
@ljstella ljstella added this to the v4.37.0 milestone Jul 25, 2024
@ljstella ljstella self-requested a review July 25, 2024 14:44
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LGTM
:shipit:

Thank you for the awesome contribution @nterl0k !

@ljstella ljstella merged commit d762dea into splunk:develop Jul 26, 2024
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3 participants