Files
Anthropic-Cybersecurity-Skills/skills/detecting-model-extraction-attacks/references/api-reference.md
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mukul975 8cae0648ec Add 55 new skills across 3 new domains + 6 undercovered areas (762 -> 817)
Demand-driven expansion targeting the fastest-growing 2025-2026 threat and
skills categories (ISC2/WEF/CrowdStrike/Mandiant signals):

- AI Security (NEW domain, 12 skills): LLM red-teaming with garak/PyRIT,
  prompt injection (direct/indirect/RAG), MCP tool-poisoning, agentic tool
  invocation, guardrails, model/data poisoning, system-prompt leakage,
  embedding/vector weaknesses, model extraction, continuous red-teaming
- Supply Chain Security (NEW domain, 5 skills): SBOMs, dependency confusion,
  malicious-npm triage, typosquatting, SLSA/Sigstore provenance
- Hardware & Firmware Security (NEW domain, 4 skills): CHIPSEC/UEFI audit,
  Secure Boot bypass, TPM measured-boot attestation, ESP bootkit hunting
- Identity (10): Entra ID/ROADtools, GraphRunner, AADInternals, ADCS/Certipy,
  shadow credentials, coercion, BloodHound CE, device-code phishing, SSO abuse
- Cloud-native (8): Stratus, Pacu, CloudFox, container escape, K8s RBAC,
  Falco, Trivy, kube-bench
- Offensive C2 (6): Sliver, Havoc, NetExec, DPAPI, NTLM relay ESC8, redirectors
- DFIR (6): Hayabusa, Chainsaw, KAPE, Velociraptor, EZ Tools, Plaso
- Backfill (4): OpenCTI, MISP, honeytokens, post-quantum crypto migration

Each skill follows the repo taxonomy (SKILL.md + references/{standards,api-reference}.md
+ scripts/agent.py + LICENSE), with researched real tool commands (no placeholders),
complete frontmatter, and ATT&CK/ATLAS + NIST CSF mappings. Updates README domain
table, skill count, and index.json.
2026-06-22 19:08:16 +02:00

2.3 KiB

Model Extraction Detection — API / Library Reference

Libraries

Library Install Purpose
adversarial-robustness-toolbox pip install adversarial-robustness-toolbox Extraction, inversion, and membership-inference attacks + defenses
scikit-learn pip install scikit-learn Surrogate / attack model training
numpy pip install numpy Confidence-vector math, perturbation

ART Extraction Attacks (art.attacks.extraction)

Class Key params Purpose
KnockoffNets nb_stolen, batch_size_query, nb_epochs, sampling_strategy Train surrogate from black-box queries (Knockoff Nets)
CopycatCNN nb_stolen, batch_size_fit, batch_size_query Copycat surrogate extraction for neural nets
attack.extract(x, thief_classifier=...) Run extraction; returns trained surrogate classifier

ART Inference Attacks (art.attacks.inference.membership_inference)

Class Key methods Purpose
MembershipInferenceBlackBox .fit(...), .infer(x, y) Black-box membership inference (AML.T0024.000)
MembershipInferenceBlackBoxRuleBased .infer(x, y) Rule-based MIA baseline (no shadow training)

ART Defenses (postprocessors)

Class Purpose
art.defences.postprocessor.ReverseSigmoid Perturb output probabilities to hinder extraction
art.defences.postprocessor.Rounded Round confidence values to reduce leaked precision
art.defences.postprocessor.HighConfidence Suppress low-confidence outputs

Estimator Wrappers

Class Purpose
art.estimators.classification.SklearnClassifier Wrap a scikit-learn model as an ART victim
art.estimators.classification.KerasClassifier / PyTorchClassifier Wrap DL models

Detection Signals (custom)

Signal Heuristic
Query volume Queries/principal/window above baseline
Unique-input ratio unique(input_hash)/queries → ~1.0
Confidence-request ratio Fraction of calls demanding full probability vectors

External References