chore: update evtx baseline to v0.8.2#5679
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Pull Request Overview
This PR updates the EVTX baseline to version 0.8.2, which includes numerous filter refinements across Sigma detection rules to reduce false positives while maintaining detection coverage.
- Updates EVTX baseline version reference in workflows
- Adds comprehensive filters for legitimate software including antivirus products (Avira, AVG, Avast), Microsoft applications, and common development tools
- Refines existing filters with more specific path matching and additional legitimate process exclusions
Reviewed Changes
Copilot reviewed 65 out of 65 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| .github/workflows/goodlog-tests.yml | Updates EVTX baseline version to v0.8.2 |
| .github/workflows/known-FPs.csv | Adds new known false positive patterns and consolidates existing ones |
| rules/windows/registry/registry_set/* | Adds filters for legitimate applications and refines existing detection logic |
| rules/windows/process_creation/* | Enhances filters for common software installations and system processes |
| rules/windows/image_load/* | Improves sideloading detection with better legitimate application exclusions |
| rules/windows/file/file_event/* | Refines file creation monitoring with enhanced system process filters |
| rules/windows/builtin/* | Updates security event filters for legitimate administrative activities |
| rules/windows/powershell/* | Enhances PowerShell monitoring with better module loading filters |
| rules-threat-hunting/* | Moves NTFS short name detection rule to threat hunting category |
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rules/windows/process_creation/proc_creation_win_python_inline_command_execution.yml
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
swachchhanda000
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Oct 9, 2025
phantinuss
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Oct 9, 2025
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nasbench
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Oct 9, 2025
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Summary of the Pull Request
Changelog
chore: update evtx baseline to v0.8.2 and fix FPs
Example Log Event
Fixed Issues
SigmaHQ Rule Creation Conventions