A noisy IDS gets ignored. Adds explicit FP-handling built on provenance — a
binary owned by the package manager is almost certainly legitimate (the OSSEC
rootcheck / AIDE principle).
- provenance.py: package_owner()/is_package_owned() via pacman/dpkg/rpm, cached;
framed as confidence-raising, never proof-of-safety
- triage.py: triage_alert() labels each detection likely-FP vs review with a
reason (package-owned binary, loopback-only listener, allowlisted comm, …);
reverse_shell/egress/exec rules are ALWAYS review (provenance can't clear a
network shell); unattributable listeners are reviewed, not cleared
- cli: `enodia-sentinel triage` summarizes captured alerts and suggests
allowlist entries
- new_listener: listener_allow_comms + optional suppress_package_owned_listeners
gate (the best single knob for a desktop/seedbox running P2P apps)
- tests: +10 (provenance injected); README + config documented. 65/65 pass
Verified on a live seedbox: 12 detections, 11 auto-cleared as FP (qbittorrent /
nicotine / kdeconnectd / the dashboard itself), 1 correctly held for review.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
