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Anthropic-Cybersecurity-Skills/skills/abusing-shadow-credentials-for-privesc/references/standards.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

1.2 KiB

Standards Mapping — Abusing Shadow Credentials for Privilege Escalation

MITRE ATT&CK (Enterprise)

ID Name Rationale
T1098.005 Account Manipulation: Device Registration Writing an attacker-controlled Key Credential to msDS-KeyCredentialLink registers an alternate device/certificate credential for the target, which is exactly the device-registration manipulation this sub-technique describes.

Reference: https://attack.mitre.org/techniques/T1098/005/

Related techniques exercised in the chain:

  • T1649 (Steal or Forge Authentication Certificates) — the PKINIT certificate used to authenticate.
  • T1550.003 / T1558 — using the recovered TGT/hash for movement.

NIST Cybersecurity Framework 2.0

ID Name Rationale
PR.AA-05 Access permissions, entitlements, and authorizations are defined, managed, and enforced incorporating least privilege and separation of duties The attack is only possible because of over-permissive ACEs (GenericWrite/GenericAll/AddKeyCredentialLink) on AD objects; remediation is least-privilege enforcement of who may write Key Credentials.

Reference: https://csrc.nist.gov/projects/cybersecurity-framework