Is abusing-shadow-credentials-for-privesc safe to install?

No known risky patterns found. The scan covers prompt injection, hidden Unicode, remote code execution and credential access in every text file of the skill. It cannot judge intent, so read any flagged line in context before installing.

How was this score calculated?

Four checks of 25 points each: spec, efficiency, clarity and security. Findings take points off the check they belong to, and any critical finding caps the grade at F. The same scanner runs in your browser at proskills.dev/scan.

Is this report current?

It was made from commit 54a7988 on 2026-10-16. If the skill has changed since, paste the new version into the scanner for a fresh score.

I wrote this skill. Can I fix the score or have the page removed?

Fix the findings and push. The reports are rebuilt from GitHub on a schedule, so the next run picks the change up. To have the page removed, open an issue on the ProSkills GitHub repo.

Scan reports · mukul975/Anthropic-Cybersecurity-Skills

abusing-shadow-credentials-for-privesc: scan report

Take over Active Directory accounts by writing attacker-controlled public keys to msDS-KeyCredentialLink (Shadow Credentials) with pyWhisker, Whisker, or Certipy, then authenticate via PKINIT to recover the target's NT… An automated scan of this public skill from mukul975/Anthropic-Cybersecurity-Skills: security, token cost, spec and clarity, with every finding and its fix.

Verdict

No known risky patterns found

Nothing in the skill matched the scanner's security rules: no instruction overrides, hidden characters, remote code or credential access.

abusing-shadow-credentials-for-privescScan 88/100Grade B

mukul975/Anthropic-Cybersecurity-Skills/skills/abusing-shadow-credentials-for-privesc at 54a7988

Spec 21 · Efficiency 21 · Clarity 21 · Security 25 (each out of 25)

Always loaded 117 tokens · on trigger 2,188 · on demand 2,289

spec/non-portable-keys warn · SKILL.mdNon-spec frontmatter (domain, subdomain, tags, version, author, nist_csf, mitre_attack). claude.ai and the Skills API reject the upload; move them under `metadata` or drop them.
clarity/output warn · SKILL.mdDoesn't say what the result should look like. Add an Output section.
eff/orphan-file info · references/api-reference.mdreferences/api-reference.md is never mentioned in SKILL.md, so the agent won't know to read it.
eff/orphan-file info · references/standards.mdreferences/standards.md is never mentioned in SKILL.md, so the agent won't know to read it.

Source

Fact	Value
Repository	mukul975/Anthropic-Cybersecurity-Skills
Skill folder	skills/abusing-shadow-credentials-for-privesc
Stars	34,556
License	Apache-2.0
Commit scanned	54a7988
Scanned	2026-10-16
Files	4

ProSkills doesn't host or redistribute this skill. Get it from its repository, and check the license before reusing it. Something wrong here? Open an issue for a rescan or removal.

Badge for the README

If you maintain this skill, this badge shows its score and links to this report. Fix findings and the score moves with the next scan.

[![ProSkills scan 88/100](https://proskills.dev/badge?score=88)](https://proskills.dev/reports/mukul975-abusing-shadow-credentials-for-privesc)

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analyzing-browser-forensics-with-hindsight	59/100	F
analyzing-campaign-attribution-evidence	83/100	B
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Questions

Is abusing-shadow-credentials-for-privesc safe to install?: No known risky patterns found. The scan covers prompt injection, hidden Unicode, remote code execution and credential access in every text file of the skill. It cannot judge intent, so read any flagged line in context before installing.
How was this score calculated?: Four checks of 25 points each: spec, efficiency, clarity and security. Findings take points off the check they belong to, and any critical finding caps the grade at F. The same scanner runs in your browser at proskills.dev/scan.
Is this report current?: It was made from commit 54a7988 on 2026-10-16. If the skill has changed since, paste the new version into the scanner for a fresh score.
I wrote this skill. Can I fix the score or have the page removed?: Fix the findings and push. The reports are rebuilt from GitHub on a schedule, so the next run picks the change up. To have the page removed, open an issue on the ProSkills GitHub repo.

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