5d577b624f
Detects binary/config tampering by content hash — catching a malicious swap even when mtime is preserved (the gap in mtime-based persistence checks). Two engines split by file ownership: - fim.py hash baseline: SHA-256 (+ mode/uid/gid/size) of security-critical files the package manager doesn't track (/usr/local, /etc configs, systemd units, SSH keys). The baseline refreshes ONLY via fim-update / the pacman hook, so a flagged change stays flagged until acknowledged (Tripwire semantics). Alerts: fim_modified 100017 / fim_added 100018 / fim_removed 100019. - package verification: `pacman -Qkk` checks package-owned binaries against the distro's own signed checksums — no baseline to maintain, implicitly current because the package DB updates on every upgrade. fim_pkg_modified 100020. Auto-update on system updates: a pacman PostTransaction hook runs `enodia-sentinel fim-update` after every install/upgrade/remove, so legitimate package changes never alert — no manual `tripwire --update`. - daemon: backgrounded FIM scan + optional pkg-verify on slow cadences, feeding the normal alert/snapshot/push pipeline; baseline loaded/built at startup - cli: fim-baseline / fim-update / fim-check [--packages] - config: fim_enabled, fim_paths, fim_scan_interval, fim_pkg_verify[_interval] - packaging: ship + install the pacman hook (Makefile + PKGBUILD) - tests: +7 (hashing, diff incl. mtime-preserving tamper, pacman -Qkk parse). 72/72 pass. Verified end-to-end: a content swap with preserved mtime is caught. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
30 lines
1.5 KiB
Bash
30 lines
1.5 KiB
Bash
# Maintainer: Enodia
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pkgname=enodia-sentinel
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pkgver=0.5.0
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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=('GPL-3.0-or-later')
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depends=('python>=3.11' 'iproute2' 'procps-ng')
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optdepends=('python-bpfcc: eBPF event-driven execve monitor (catches short-lived processes)'
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'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 systemd/enodia-sentinel-web.service "$pkgdir/usr/lib/systemd/system/enodia-sentinel-web.service"
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install -Dm644 packaging/enodia-sentinel-fim.hook "$pkgdir/usr/share/libalpm/hooks/enodia-sentinel-fim.hook"
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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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