credential-recovery

credential-recovery is a skill for Claude Code, Codex from blacklanternsecurity/red-run. It costs 117 tokens per session (5,683 once invoked), scanned D, original, GPL-3.0.

An offline password-recovery procedure for password hashes and encrypted files. It uses John the Ripper and hashcat, tools that try possible passwords against protected data.

In plain words
What is it for?
Use it with NTLM, Kerberos, shadow, MSCACHE2, and similar hashes, or with encrypted ZIP, Office, PDF, KeePass, SSH-key, 7z, and RAR files.
Why use it?
It provides a way to recover access when you have a captured password hash or a password-protected file and need to test passwords without connecting to the original service.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it with NTLM, Kerberos, shadow, MSCACHE2, and similar hashes, or with encrypted ZIP, Office, PDF, KeePass, SSH-key, 7z, and RAR files.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/blacklanternsecurity/red-run/credential-recovery
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add blacklanternsecurity/red-run --skill credential-recovery
Clone the repo
git clone --depth 1 https://github.com/blacklanternsecurity/red-run

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for credential-recovery

README.md
[![agentmods](https://agentmods.dev/badge/skills/blacklanternsecurity/red-run/credential-recovery/github.svg)](https://agentmods.dev/skills/blacklanternsecurity/red-run/credential-recovery)
Your own site
<a href="https://agentmods.dev/skills/blacklanternsecurity/red-run/credential-recovery"><img src="https://agentmods.dev/badge/skills/blacklanternsecurity/red-run/credential-recovery/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for credential-recovery

Your own site · 80×15
<a href="https://agentmods.dev/skills/blacklanternsecurity/red-run/credential-recovery"><img src="https://agentmods.dev/badge/skills/blacklanternsecurity/red-run/credential-recovery.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 117 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,683 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00117 $0.05683
Opus 5 $0.00059 $0.02841
Sonnet 5 $0.00023 $0.01137
Haiku 4.5 $0.00012 $0.00568

Measured 9d ago against content hash fa991c4af622, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade D, and why

credential-recovery scanned grade D with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo apt install john

Reaches for credential fileshighPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

| `$6$...` | SHA-512 crypt | 1800 | From /etc/shadow (Linux) |
skills/post-exploit/credential-recovery/SKILL.md · 575 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 575 lines · 117 tokens per session scan D fa991c4af622

Subscribe to this mod's changes

credential-recovery is a skill published in the GitHub repository blacklanternsecurity/red-run (267 stars, last pushed 5mo ago), licensed GPL-3.0. It adds 117 tokens to every session and 5,683 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it D with 2 findings (asks for root, reaches for credential files). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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