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Add event-driven memory syscall telemetry

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Luna 2026-06-13 05:45:30 -07:00
parent 893409b549
commit a51478fa22
18 changed files with 589 additions and 32 deletions
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docs/THREAT_MODEL.md
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@ -29,7 +29,7 @@ Sentinel is designed to help against:
| Fileless or short-lived execution | Deleted executable, memfd payload, fast `curl|sh` | Detect deleted executables and eBPF exec rules where available. |
| Package/file tampering | Trojaned binary, rewritten package DB checksums | Detect FIM drift, package DB tamper, and signed-package mismatches. |
| Common rootkit hiding | LD_PRELOAD tricks, process-tool hiding, `/proc` hiding, module-list hiding, hidden TCP/UDP/raw/SCTP/packet sockets, tainted modules | Detect LD_PRELOAD, `/proc` vs `ps` disagreement, mapped hide libraries, cross-view inconsistencies, known LKM names, raw ICMP/SCTP-style sockets, unusual protocol families, and kernel/module taint. |
| Memory-resident payloads | Encrypted heap/code, packed memfd stages, RWX shellcode, deleted mapped payloads | Detect executable anonymous/memfd/deleted mappings and writable+executable pages. |
| Memory-resident payloads | Encrypted heap/code, packed memfd stages, RWX shellcode, deleted mapped payloads | Detect executable anonymous/memfd/deleted mappings and writable+executable pages; optional eBPF syscall telemetry catches short-lived RWX transitions and memfd staging. |
| Sensor tampering | Stop daemon, edit config, remove hook, modify baseline | Detect self-integrity changes and stale heartbeat via external watchdog. |
## Trust Boundaries