Add typed host event egress rule
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15 changed files with 360 additions and 31 deletions
12
CLAUDE.md
12
CLAUDE.md
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@ -13,7 +13,8 @@ network blocking or automatic host mutation.
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Primary functions:
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- Detect: poll detectors plus optional eBPF exec/syscall rules.
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- Detect: poll detectors, optional eBPF exec/syscall rules, and typed
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host-event rule fixtures.
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- Prevent: posture findings plus reviewed containment/recovery plans.
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- Verify: FIM, package DB anchor, signed-package verification, rootcheck.
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- Investigate: text/JSON snapshots, incidents, HTTPS management console.
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@ -39,6 +40,9 @@ Implemented detection coverage:
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web/database service spawning shells, and `curl|wget|sh` style staging.
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- eBPF syscall rules: RWX `mprotect`/`mmap`, `memfd_create`, sensitive
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`ptrace`, seccomp changes, cross-process memory access, and memory locking.
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- Typed host-event rules: `tcp_connect` JSON fixtures can already exercise
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interpreter egress to unusual public ports; live event sources are still
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future work.
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- Anti-rootkit checks: hidden PIDs, `/proc` vs `ps` mismatches, hidden modules,
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hidden TCP/UDP/raw/special-protocol sockets, raw ICMP/SCTP-style channels,
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promiscuous interfaces, known LKM rootkit names, module taint, and kernel
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@ -59,7 +63,8 @@ Implemented investigation/response state:
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persists CLI-generated plans under `response-plans/`, and appends
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`response-audit.log`. Dashboard/API plan previews do not write artifacts.
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- `rules list/show/test` exposes built-in and configured event rules and lets
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operators test exec/syscall event JSON fixtures against the rule engines.
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operators test exec, syscall, and typed host-event JSON fixtures against the
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rule engines.
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- `rules docs` emits generated Markdown rule docs; `docs/RULES.md` is the
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checked-in built-in rule reference with match fields, false positives, and
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drill guidance.
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@ -125,7 +130,8 @@ Start with:
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- `daemon.py` runs sweep/cooldown/background tasks.
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- `system.py` builds one cached injectable view of processes and sockets.
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- `detectors/` contains pure poll detectors.
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- `events/` contains optional eBPF exec/syscall monitoring and declarative rules.
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- `events/` contains optional eBPF exec/syscall monitoring plus declarative
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exec, syscall, and typed host-event rules.
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- `snapshot.py` writes forensic `.log` and `.json` evidence.
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- `incident.py` groups snapshots by process lineage and time window.
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- `respond.py` builds read-only response plans from incident evidence; the CLI
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