28d67a1360
Port the bash prototype to a structured, testable Python codebase while
preserving the same control loop and the seven detection signatures. The bash
implementation stays in src/ as the regression oracle.
Highlights:
- enodia_sentinel/ package (stdlib only — no runtime deps):
- detectors/ : one pure function per signature, detect(state, cfg)->Alerts
- system.py : SystemState — one cached /proc + ss snapshot per sweep,
fully injectable so detectors are unit-testable
- daemon.py : sweep loop, in-process cooldown dedup, threaded snapshot
capture, and a SUID filesystem scan moved OFF the loop
thread onto a slow background cadence
- snapshot.py: forensic text + JSON sidecar with per-signature IR guidance
- config.py : dataclass config via TOML + env overrides
- netutil.py : public-IP / CIDR logic via stdlib ipaddress
- tests/ : 25 stdlib-unittest cases (no root, no /proc, no ss needed)
- TOML config, launcher wrapper, Makefile (pip-free install), hardened
systemd unit (env-resolved ExecStart), updated PKGBUILD, rewritten README
Performance: per-sweep cost ~200 ms (shared cached state); the multi-second
SUID walk no longer blocks detection. scandir-based walk replaces os.walk.
Verified on Arch: all 7 detectors fire on red-team drills (reverse_shell,
ld_preload, deleted_exe, new_listener, new_suid confirmed live end-to-end),
no false positives on a clean sweep, 25/25 tests pass.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
27 lines
1.2 KiB
Bash
27 lines
1.2 KiB
Bash
# Maintainer: Enodia
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pkgname=enodia-sentinel
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pkgver=0.2.0
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pkgrel=1
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pkgdesc="Host intrusion-detection daemon — signature-based detection of reverse shells, LD_PRELOAD rootkits, fileless malware, and persistence tampering"
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arch=('any')
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url="https://github.com/Enodia/enodia-sentinel"
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license=('MIT')
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depends=('python>=3.11' 'iproute2' 'procps-ng')
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optdepends=('bpftrace: execve tracing of short-lived processes in snapshots'
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'libnotify: desktop notifications on alert')
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backup=('etc/enodia-sentinel.toml')
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source=()
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sha256sums=()
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package() {
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cd "$startdir/.."
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# Install the stdlib-only package as a directory + launcher under /usr.
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install -d "$pkgdir/usr/lib/enodia-sentinel"
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cp -r enodia_sentinel "$pkgdir/usr/lib/enodia-sentinel/"
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install -Dm755 packaging/enodia-sentinel.wrapper "$pkgdir/usr/bin/enodia-sentinel"
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install -Dm755 src/sentinel-redteam "$pkgdir/usr/bin/sentinel-redteam"
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install -Dm644 systemd/enodia-sentinel.service "$pkgdir/usr/lib/systemd/system/enodia-sentinel.service"
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install -Dm644 config/enodia-sentinel.toml "$pkgdir/etc/enodia-sentinel.toml"
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install -Dm644 LICENSE "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
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install -dm750 "$pkgdir/var/log/enodia-sentinel"
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}
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