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phantinuss
approved these changes
Jul 2, 2025
Co-authored-by: phantinuss <79651203+phantinuss@users.noreply.github.com>
phantinuss
approved these changes
Jul 2, 2025
Co-authored-by: phantinuss <79651203+phantinuss@users.noreply.github.com>
swachchhanda000
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Jul 2, 2025
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Pull Request Overview
This PR adds several named pipe and image filters to align the Sysmon configuration with updated Sigma rules for detecting pipe-based C2 and suspicious activity.
- Removed underscore-suffixed pipe patterns and replaced them with updated conditions.
- Added new
<PipeName>filters for various C2/default pipes and<Image>filters for suspicious executable locations. - Applied the same updates to both
sysmonconfig-export.xmlandsysmonconfig-export-block.xml.
Reviewed Changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| sysmonconfig-export.xml | Removed old pipe patterns; added new PipeName and Image filters |
| sysmonconfig-export-block.xml | Mirror updates: removed outdated entries and added new filters |
Comments suppressed due to low confidence (2)
sysmonconfig-export.xml:1025
- Align indentation of
<Image>elements with sibling<PipeName>entries for improved readability.
<Image condition="contains">:\PerfLogs\</Image>
sysmonconfig-export.xml:1031
- You removed the trailing underscore from the original
\scerpc_pattern. Confirm this broader match is intended and won’t introduce noise.
<PipeName condition="begin with">\scerpc</PipeName>
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This Sysmon configuration was missing several named pipes referenced in the Sigma rules. I have reviewed and added them based on the rules found here:
https://github.com/SigmaHQ/sigma/tree/master/rules/windows/pipe_created