f1547423b5
refactor(bot-detector): suppression monolithe, tests multifactoriels
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- Suppression de bot_detector.py (1982 lignes) remplacé par 11 modules
- Tests navigateur mis à jour pour le système multifactoriel (browser_confidence)
- 36/36 tests passent avec la nouvelle structure modulaire
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-09 01:03:17 +02:00
1f103392ac
refactor(bot-detector): extract monolith into modular package
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Split bot_detector.py (~1982 lines) into 10 focused modules:
- config.py: all configuration constants and optional imports
- log.py: logging utilities (log_info, log_decision, append_training_history)
- infra.py: ClickHouse client, health check HTTP server, shutdown
- browser.py: multifactorial browser identification (5 axes)
- scoring.py: drift detection, feature validation, SHAP, clustering
- models.py: EIF, Autoencoder, XGBoost model management
- preprocessing.py: data preprocessing and feature list definitions
- pipeline.py: core semi-supervised scoring loop
- cycle.py: main analysis cycle orchestration
- __main__.py: entry point with startup banner
Update Dockerfile to copy package directory and use python -m bot_detector.
All 36 existing tests pass unchanged.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-09 01:02:04 +02:00
c994ad4466
fix: XGB label query + SHAP isotree compatibility
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XGB: query was selecting features from ml_all_scores which doesn't
store them. Now joins ml_all_scores (labels) with view_ai_features_1h
(features). Dynamically discovers available columns to skip thesis §5
features not present in the view. Returns (model, features) tuple.
SHAP: TreeExplainer doesn't support isotree. Fall back to permutation-
based Explainer(model.decision_function, X_sample) for isotree.
Verified: XGB trained on 50000 labels (18436 positives), triple-voice
ensemble scoring active (EIF+AE+XGB), SHAP silent.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-09 00:06:54 +02:00
c6666e2bba
fix: isotree score convention — proper sklearn calibration
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isotree decision_function returns [0,1] (higher=anomalous, 0.5=boundary).
The entire pipeline (normalize_scores, score_to_threat_level,
compute_adaptive_threshold) expects sklearn convention (negative=anomalous).
Previous fix (-raw_scores) negated all values, making everything
below -0.30 → all CRITICAL. New fix: 0.5 - isotree_score maps
correctly to sklearn's convention:
isotree 0.80 → -0.30 (CRITICAL)
isotree 0.65 → -0.15 (HIGH)
isotree 0.55 → -0.05 (MEDIUM)
isotree 0.50 → 0.00 (boundary)
Verified: 27,952 LEGITIMATE_BROWSER + 15,843 HIGH + 15,059 MEDIUM
Tests: 36/36 pass.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-08 23:56:05 +02:00
db306fb9da
fix: P0 audit bugs — bot-detector + dashboard + SQL
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Bot-detector:
- B1.1: campaign_id and raw_anomaly_score now inserted into ml_detected_anomalies
- B1.4/B1.5: log_decision argument order fixed (cycle_id, name)
- B1.7: AE broadcast error — model now returns features list, scoring
uses model's features instead of current cycle's (prevents dim mismatch)
- B1.8: Anubis ALLOW bots now get bot_name from anubis_bot_name
Dashboard:
- C1.1: XSS in ip_detail.html — {{ ip | tojson }} instead of raw string
- C1.2: Stored XSS via innerHTML — added escapeHtml() helper, all user-facing
formatters (fmtIP, fmtASN, fmtCountry, fmtJA4, fmtBotName, fmtLabel) sanitized
- C2.1: status filter now correctly filters http_version column
- C2.2: heatmap toDayOfWeek() - 1 for 0-indexed JS days
SQL:
- B1.3: view_ip_recurrence worst_score uses max() not min() (0=normal, 1=anomal)
- B1.6: view_resource_cascade_1h joined into view_thesis_features_1h (§5.4)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-08 23:33:00 +02:00
98289ccf04
fix: ASN dictionary pipeline + verbose bot-detector logging
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- Fix dict_iplocate_asn: remove non-existent org/domain columns (4→4 cols)
- Add CSV header to iplocate-ip-to-asn.csv (CSVWithNames format)
- Replace org/domain dictGet calls with empty string literals in MV
- Full 714K CIDR stub for complete ASN resolution in tests
- Add header generation to generate_asn_data.py
- Verbose bot-detector stdout: data summary, triage breakdown, model
training details, scoring stats, browser classification, boxed results
- Fix IPv6 filter in traffic seeder (_ips_from_cidrs)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-08 17:43:55 +02:00
5c5bca71d1
feat: rewrite ASN classification with PeeringDB + expanded heuristics
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Major improvements to generate_asn_data.py:
- Add PeeringDB network data source (34K networks with info_type)
- Add new categories: education, government, enterprise
- Rename 'human' label to 'isp' across all consumers
- Expand keyword heuristics (ISP, datacenter, hosting, CDN, education, gov)
- Add hard-coded lists for education, government, enterprise ASNs
- Support both --output-dir and --output-asn/--output-ipasn CLI interfaces
- Add --no-peeringdb flag for offline use
Results: unknown dropped from 86% to 57%, ISP coverage 21.8K ASNs,
education 3.1K, enterprise 5.7K, government 520.
Updated consumers:
- bot_detector.py: 'human' -> 'isp' for baseline selection
- dashboard api.py: 'human' -> 'isp' in SQL queries
- run-tests.sh: 'human' -> 'isp' in integration test assertions
- update-csv-data.sh: updated label description comment
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-08 16:02:07 +02:00
9a48fb9d29
feat: LEGITIMATE_BROWSER classification from JA4 + behavioral consistency
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Add browser legitimacy classification (A9) to the bot detection pipeline:
- New features: is_known_browser (binary) and browser_consistency_score [0..5]
combining 5 signals: JA4 browser match, modern_browser_score, Accept-Language,
cookies, Sec-Fetch-* presence
- Post-scoring: sessions with known browser JA4 + consistency >= 4/5 + NORMAL/LOW
threat level are reclassified as LEGITIMATE_BROWSER
- Spoofing detection: inconsistent behavior (known JA4 but low consistency) stays
in normal anomaly scoring — prevents evasion via JA4 spoofing
- XGBoost treats LEGITIMATE_BROWSER as non-threat (negative label)
- ClickHouse: browser_family column added to ml_detected_anomalies and ml_all_scores
- Dashboard: browser_family filter/sort on detections and scores endpoints,
legitimate_browsers count and browser_stats in overview
- 6 new unit tests covering classification threshold, spoofing, exclusion logic
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-08 15:46:22 +02:00
7d09c614c3
feat: browser JA4 detection, Anubis bot rules, worldwide ASN data
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- Add generate_browser_ja4.py: 1,186 browser JA4 fingerprints from FoxIO + ja4db.com
covering 11 families (Chromium, Firefox, Safari, Edge, Tor, Opera, Vivaldi...)
- Rewrite generate_bot_ip.py: Anubis YAML rules (Google, Bing, Apple, DuckDuck,
OpenAI, Perplexity bots) + Tor exit nodes + cloud scanner IPs (3,555 entries)
- Rewrite generate_asn_data.py: worldwide iptoasn.com data (78,049 ASNs, 714K CIDRs)
- Add dict_browser_ja4 ClickHouse dictionary + browser_family in AI features views
- Add /api/browsers dashboard endpoint
- Fix CSV quoting for fields containing commas (User-Agent strings)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-08 15:27:37 +02:00
f7ee5e63f8
fix(docker): add g++ for isotree build, add dashboard Dockerfile.tests
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- bot-detector Dockerfile + Dockerfile.tests: install g++ for isotree C++ extension
- dashboard Dockerfile.tests: new smoke test (verify FastAPI app loads)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-08 08:08:13 +02:00
8d58f2b932
feat(bot-detector): add XGBoost supervised third voice ( #10 )
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Triple-voice ensemble architecture:
- EIF (non-supervisé, anomalies zero-day)
- Autoencoder (non-supervisé, corrélations non-linéaires)
- XGBoost (supervisé, patterns connus + feedback SOC)
XGBoost implementation:
- Trained on historical ml_all_scores labels (NORMAL=0, HIGH/CRITICAL/DENY/KNOWN=1)
- Weekly retraining (XGB_RETRAIN_INTERVAL_H=168), min 100 labels required
- Score = predict_proba, combined via meta-learner: (1-β)*(EIF+AE) + β*xgb_prob
- Configurable: XGB_WEIGHT (β=0.20), XGB_MIN_LABELS, XGB_RETRAIN_INTERVAL_HOURS
- Graceful fallback: if xgboost unavailable or labels insufficient, EIF+AE only
- ClickHouse: xgb_prob column added to ml_all_scores
- Tests: 4 new tests (availability, train/predict, meta-learner, save/load)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-08 02:45:57 +02:00
57cf6c3828
feat(bot-detector): add parallel Autoencoder scorer ( #9 )
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- TrafficAutoEncoder class: symmetric AE (n→64→32→16→32→64→n) with BatchNorm+ReLU
- Trained alongside EIF on human_baseline, saved/loaded with model versioning
- Score = per-sample MSE reconstruction error, combined with EIF via AE_WEIGHT (α=0.30)
- AE latent space (16-dim) used for HDBSCAN clustering instead of raw features
- Configurable: AE_WEIGHT, AE_EPOCHS, AE_LATENT_DIM, AE_LEARNING_RATE
- Graceful fallback: if torch unavailable or AE fails, EIF-only scoring continues
- ClickHouse: ae_recon_error column added to ml_all_scores
- Tests: 5 new tests (AE train/score, encode latent, state dict save/load, weight combination)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-08 02:40:39 +02:00
f6e2d3c0ca
feat(bot-detector): implement 8 state-of-art improvements
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- EIF: Extended Isolation Forest via isotree (fallback to sklearn IF)
- Benford's Law deviation feature on inter-request timing
- Lag-1 autocorrelation feature for cadence analysis
- Validation gate: reject model if val_anomaly_rate > 20%
- Feature pruning: remove variance < 1e-6 features before training
- Quantile drift: replace N(μ,σ) synthetic with quantile interpolation
- Thread safety: Lock for _service_healthy/_consecutive_failures
- Score normalization: inverted to [0,1] where 1=most anomalous
SQL: add lag1_autocorrelation + benford_deviation to view_thesis_features_1h
Tests: 10 new test functions covering all improvements
Integration: verify_mvs.py checks new thesis feature columns
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-08 02:31:26 +02:00
3ae8c7d9c9
feat(bot-detector): upgrade to state-of-the-art detection pipeline
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- Fix UnboundLocalError on global _consecutive_failures/_service_healthy
- Add SQL identifier validation for DB names at startup
- Replace Z-score drift detection with KS test (scipy.stats.ks_2samp)
- Replace DBSCAN with HDBSCAN (adaptive clustering, no epsilon needed)
- Fix NaN→0 blanket imputation with per-feature median/sentinel strategy
- Add 80/20 temporal train/validation split with offline metrics logging
- Integrate thesis §5 features from view_thesis_features_1h:
path_transition_entropy, cadence_cv, burst/pause ratios,
host_diversity, host_sweep_speed, host_coverage_uniformity,
ja4_drift_ratio (Complet model only)
- Add SOC feedback loop: read classifications from audit_logs,
reclassify FP IPs as human, exclude TP IPs from baseline
- Update dependencies: clickhouse-connect 0.8.12, scikit-learn 1.6.1,
pandas 2.2.3, shap 0.47.2, add scipy>=1.14, hdbscan>=0.8.38
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-08 02:09:18 +02:00
51b8eb57a8
feat: port v14 schema fixes, migration, MV verifier, thesis from ja4/
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deploy_views.sql (v13 → v14):
- CRITICAL: ml_detected_anomalies ORDER BY (src_ip) → (src_ip, ja4, host, model_name)
ReplacingMergeTree was collapsing all detections to 1 row per IP on merge
- Add PARTITION BY toDate + ttl_only_drop_parts on all 4 data tables
- ml_all_scores TTL 3d → 7d; ml_detected_anomalies TTL 30d → 7d
- agg_host_ip_ja4_1h + agg_header_fingerprint_1h: add partition + TTL 7d
- view_ip_recurrence: add WHERE detected_at >= now() - 7 DAY (was full scan)
- Remove dead views: summary/timeseries/threat_dist/variability
- Add view_dashboard_entities (fixes HTTP 500 in clustering/incidents/fingerprints)
- Add view_dashboard_user_agents (fixes HTTP 500 in fingerprints/metrics)
- Add view_ai_features_24h (enables ENABLE_MULTIWINDOW in bot_detector)
- Mark max_requests_per_sec as DEPRECATED (always 0)
New files:
- correlator/sql/migrations/01_ttl_adjustments.sql: ALTER TABLE migration
- tests/integration/verify_mvs.py: MV pipeline verification assertions
- docs/THESIS_HTTP_Traffic_Detection.md: detection techniques thesis
All DB references use ja4_processing/ja4_logs (no mabase_prod).
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-07 23:51:56 +02:00
3dfeba860b
docs: add standardized comments to all services (Python, Go, Bash)
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- Add docs/commenting-standard.md defining per-language comment standards
(Go godoc, Python PEP-257, C Doxygen, Bash header blocks, SQL banners)
- services/dashboard: 100% docstring coverage (100/100 functions)
- All FastAPI route handlers, helpers, classes, and models documented
- Language: French (project convention)
- services/bot-detector: 100% docstring coverage (53/53 symbols)
- bot_detector.py: 14 functions + module docstring
- anubis/fetch_rules.py: 9 functions
- shared/python/ja4_common: full docstrings on ClickHouseClient (7 methods)
and ClickHouseSettings class
- services/correlator: 24 godoc comments added across 6 Go files
- correlation_service.go: 10 private helpers
- unixsocket/source.go: 6 parsing/socket helpers
- correlated_log.go: 4 field extraction helpers
- orchestrator.go, logger.go, main.go: 4 comments
- services/correlator/scripts/audit-architecture.sh: standardized header block
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-07 21:32:29 +02:00
9f3e0621e5
feat: split ClickHouse into dual configurable databases (ja4_logs / ja4_processing)
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Architecture:
- ja4_logs: raw log ingestion (http_logs_raw, http_logs, mv_http_logs)
- ja4_processing: analytics, aggregation, ML, dictionaries, audit
Configuration (env vars):
- CLICKHOUSE_DB_LOGS (default: ja4_logs)
- CLICKHOUSE_DB_PROCESSING (default: ja4_processing)
Changes:
- SQL migrations (10 files): all mabase_prod refs → ja4_logs or ja4_processing
with correct cross-database references (MVs, views, dicts)
- deploy_schema.sh: substitutes DB names from env vars at deploy time
- Python shared settings: added CLICKHOUSE_DB_LOGS + CLICKHOUSE_DB_PROCESSING
- Dashboard routes (19 files): replaced ~80 hardcoded mabase_prod refs
with settings.CLICKHOUSE_DB_LOGS / settings.CLICKHOUSE_DB_PROCESSING
- Bot-detector: DB → CLICKHOUSE_DB_PROCESSING, fetch_rules.py configurable
- Correlator: DSN example updated to ja4_logs
- Docker-compose + .env files: new env vars with defaults
- All documentation updated (14 markdown files)
All tests pass: sentinel 10/10, correlator 67.1%, bot-detector 11, dashboard 20, ja4_common 18
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-07 19:10:35 +02:00
d469e39da7
feat: ja4-platform monorepo — 5 services unified, tests & RPM builds standardized
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Services:
- ja4sentinel: TLS/JA4 fingerprint capture daemon (Go, libpcap)
- logcorrelator: JA4 log correlation engine (Go, ClickHouse)
- mod_reqin_log: Apache module (C, JSON request logging)
- bot_detector: ML bot detection pipeline (Python)
- dashboard: FastAPI/Streamlit analytics UI (Python)
Shared libraries:
- shared/go/ja4common: logger, config, shutdown, ipfilter (Go module)
- shared/python/ja4_common: ClickHouseClient, ClickHouseSettings (Python package)
- shared/clickhouse/: canonical SQL migrations (10 files)
Build & packaging:
- Unified 3-stage Dockerfile.package for Go RPMs (el8/el9/el10)
- go.work workspace linking sentinel, correlator, ja4common
- Makefile with test-all, build-all, rpm-* targets
Fixes applied:
- go.work: 1.21 → 1.24.6 (required by sentinel)
- correlator Dockerfiles: golang:1.21 → golang:1.24
- replace directives in go.mod for ja4common local path
- pyproject.toml: setuptools.backends → setuptools.build_meta
- Removed static libpcap linking (unavailable on Rocky 9)
- Fixed data races in output/writers_test.go (sync.Mutex + atomic.Int32)
- Rewrote corrupted test files (logger_test.go × 2)
Test coverage:
- correlator: 67.1% total (unixsocket 80.5%, config 91.7%, app 83.3%, multi 87.7%, stdout 100%)
- sentinel: all 10 packages pass (api, capture, config, fingerprint, ipfilter, logging, output, tlsparse)
Documentation:
- README.md + docs/ (architecture, development, 5 services, shared libs, DB schema & migrations)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com >
2026-04-07 16:42:59 +02:00
