anti 3c571cce5a fix(correlation): prober events no longer count as attacker traversal ...

The prober writes events with hostname=decnet-prober and target_ip=
<the attacker being fingerprinted>. The parser pulls target_ip into
attacker_ip (it's one of _IP_FIELDS), which is correct for indexing
fingerprints under the attacker — but it had a side effect: every
fingerprinted attacker had two distinct deckies on file (the real
decoy they touched + decnet-prober) and the correlation engine's
traversals() classified that as lateral movement. Live dashboard
showed bogus "dmz-gateway -> decnet-prober" paths and TRAVERSAL
badges on attackers who'd done nothing but knock on the front door.

The prober is internal infrastructure, not a hop. Filter the
"decnet-" namespace out of distinct-decky counts and hop paths in
the engine. Fingerprints stay attached to the attacker profile via
the existing per-IP event index — just no longer as traversal.

2026-04-27 23:02:23 -04:00

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