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Dev tools · April 25, 2026

SNF

Offline passive NDR for air-gapped networks. Written in Rust

What it does

SNF (Shadow Network Fingerprinting) is a passive NDR engine for air-gapped environments: defense networks, nuclear infrastructure, ICS, and classified SOCs. It fingerprints TLS via JA3/JA4, detects C2 beacons, DGA domains, DNS tunnels, and full ICS/SCADA protocol abuse. Zero network calls. Ever. Not a setting. Architecture. Output is deterministic NDJSON with SHA-256 verification and court-admissible evidence bundles. Open-core layer Apache 2.0. Full intelligence engine proprietary.

Does the same job

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