When the prober observes a NEW hash for an
(attacker_uuid, port, probe_type) triple it has seen before — VPS
rotation, SSH server rebuild, TLS cert swap — emit a derived
attacker.fingerprint_rotated event carrying both old and new hash.
Detection is a small library (decnet.correlation.fingerprint_rotation)
called inline from the prober at each of the three emit sites
(JARM/HASSH/TCPFP). No new daemon. New AttackerFingerprintState table
holds per-triple last-hash state; Attacker.rotation_count and
Attacker.last_rotation_at are stamped on every diff. Library is sync,
fully unit-tested via injected publish_fn / syslog_fn callbacks.
Honeypot SSH containers run `PROMPT_COMMAND` that calls
`logger --rfc5424 --msgid command -t bash "CMD …"`. The Docker-stdout
reader prepends an outer RFC5424 envelope (HOSTNAME=<decky>,
APP-NAME=1, MSGID=NIL) around that inner syslog line. Both the
collector parser (`parse_rfc5424`) and the correlation parser
(`parse_line`) saw the outer NIL MSGID and emitted `event_type="-"`
for every shell command — which:
- kept `Attacker.commands` rows missing `command_text`
- left R0001–R0030 (the pattern rule pack that matches shell
commands) with no haystack
- made `decnet.collector.log` show `event written … type=-`
for the very lines that should be `type=command`
Both parsers now detect the inner-RFC5424 shape (`<TS> <HOST> <APP>
<PROCID> <MSGID> <rest>`) when the outer MSGID is NIL and the SD-arm
is also NIL, and re-extract HOSTNAME / APP-NAME / MSGID / remainder
from the body. The collector parser also recovers the post-SD msg
tail when the SD block isn't `relay@55555` (the bash CMD line carries
a `[timeQuality …]` block) so the kv-fallback can find `src_ip`.
Mirroring tests in tests/collector and tests/correlation pin both
the unwrap and the regression guard for non-double-wrapped lines.
fix(generator): correct service pool count in _SVC_MIN/_SVC_MAX comment
BLE001 is not in ruff.toml select (F/ANN/RUF/E/W only); the suppressions
were whispering apologies to a linter that wasn't listening. Generator
comment now cites the actual ~28-entry non-singleton service pool.
Adds probe_forwarded to meaningful event kinds and stores it in the
bounty table as bounty_type=probe_relay with forwarded=true/false, so
the dashboard shows whether the upstream actually accepted the test email.
The Dockerfile PROMPT_COMMAND logger uses --msgid command, so the MSGID
field arrives as 'command' not '-'. The CMD rewrite block was guarded by
event_type == '-' so it never fired, leaving fields['command'] unpopulated
and cmd_text=None for every SSH session command.
Broaden the guard to also match event_type == 'command' with no existing
'command' field, which covers both the intended (MSGID=NIL) and actual
(MSGID=command) wire formats.
SSH/telnet decky containers emit shell commands via `logger -t bash "CMD …"`
which produces RFC 5424 lines with MSGID=NIL. Both parsers were leaving
event_type="-", so the behavioral profiler's `_COMMAND_EVENT_TYPES` filter
silently dropped them — the IP profile existed but no command transcripts
or artifacts. Confirmed in the wild: 44/48 events from one attacker were
event_type="-".
Rewrite event_type to "command" in both parsers when MSGID=NIL and the
msg starts with "CMD ". Correlation parser also extracts the cmd= payload
into fields["command"] so the profiler can build the transcript; collector
parser leaves fields={} to avoid duplicate pills in the dashboard.
