IdentityLifter owns lifter:identity_* — currently R0003 (password
spraying). CredentialLifter owns lifter:credential_* — R0001 generic
auth brute, R0002 password guessing, R0004 credential reuse, R0005
valid-account use, R0006 default credentials.
YAMLs R0001/R0002/R0003/R0005/R0006 had their match.kind normalised
to fit the lifter prefix scheme — the design doc's promised "YAMLs
normalised in a separate refactor commit" lands here.
Identity-rollup tags null out attacker_uuid on emit so the worked-
example invariant holds (the tag belongs to the Identity, never to
one member IP).
Tests: test_identity_lifter.py + test_credential_lifter.py cover
each predicate's positive/negative path, state modulation
(disabled/clipped/expired), source-kind gating, and idempotent
replay. test_lifter_absence and test_lifters updated for the new
ctor signature.
30 YAMLs for the shell/command rule cohort per Appendix B (rules/ttp/).
Splits into engine-active (R0007-R0029, regex on command_text /
raw_url / user_agent) and lifter-bound (R0001-R0006, R0030 — the
v0 RuleEngine cannot count auth attempts, do identity rollups, or
parse fingerprint blobs; the BehavioralLifter / IdentityLifter /
CredentialLifter consume them by rule_id at E.3.9 / E.3.13).
test_command_rules.py asserts:
- every R000N has a YAML that compiles
- lifter-bound rules NEVER fire from the v0 engine (regression
guard against a YAML drifting into a regex match.spec)
- engine-active rules meet their Appendix-C precision target
against the seed corpus (≥0.95 high-conf, ≥0.80 medium)
Conftest fixes: precision_engine moved to module-scope so module-
scope precomputed dispatch fixture (fired_by_label) can request it;
_RULES_DIR path bumped from parents[2] to parents[3] so the loader
resolves the project root regardless of pytest cwd; make_event
synthesizes attacker_uuid so TTPTag's anchor invariant is satisfied.
Seed corpus broadened: positive examples for every regex rule plus
6 negative examples across innocuous shell verbs (ls, echo, cd, ps,
df, free) so FPs surface in precision rather than passing vacuously.
