[New Rules] Procfs Sycall Read & binfmt Configuration File Creation - #6698
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Aegrah
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Pull request overview
Adds two new Linux detection rules to this repository as part of migrating previously-deprecated endpoint content into detection-rules.
Changes:
- Introduces a new EQL rule to detect binfmt configuration
.conffile creation in commonbinfmt.dpaths. - Introduces a new EQL rule to detect suspicious reads of
/proc/<pid>/syscallvia common CLI tooling across multiple endpoint data sources.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.
| File | Description |
|---|---|
| rules/linux/persistence_binfmt_configuration_file_creation.toml | New Linux EQL rule targeting binfmt config file creation activity. |
| rules/linux/discovery_suspicious_proc_pid_syscall_read.toml | New Linux EQL rule targeting suspicious /proc/<pid>/syscall reads across endpoint telemetry sources. |
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Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Aegrah
requested review from
bryans3c,
shashank-elastic,
terrancedejesus and
w0rk3r
August 25, 2026 11:59
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terrancedejesus
approved these changes
Aug 25, 2026
eric-forte-elastic
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Aug 25, 2026
eric-forte-elastic
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Small Comment, otherwise looks good 👍
bryans3c
approved these changes
Aug 26, 2026
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
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Summary
Migrating two deprecated endpoint rules over to detection rules.