crypto-attacker

crypto-attacker is an agent for Claude Code from morodomi/redteam-skills. It costs 32 tokens per session (1,193 once invoked), scanned A, original, MIT.

A static code checker for unsafe cryptography and security settings. It looks for debug mode, weak hashes such as MD5 or SHA-1, weak encryption algorithms, default credentials, and overly broad cross-origin access.

In plain words
What is it for?
Use it to review Laravel, Django, Flask, or Express code for insecure debug settings, weak hashing or encryption, default logins, and unsafe CORS configuration.
Why use it?
It helps find settings and algorithms that can expose data or make an application easier to attack before deployment.

Agent for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the redteam-core plugin — 4 skills, 18 agents shipped together

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.

agentmods
npx agentmods add agents/morodomi/redteam-skills/crypto-attacker
Clone the repo
git clone --depth 1 https://github.com/morodomi/redteam-skills

Made for: Claude Code.

Or install redteam-core, the plugin that ships this one along with the rest of its 4 skills, 18 agents.

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 crypto-attacker

README.md
[![agentmods](https://agentmods.dev/badge/agents/morodomi/redteam-skills/crypto-attacker.svg)](https://agentmods.dev/agents/morodomi/redteam-skills/crypto-attacker)
Your own site
<a href="https://agentmods.dev/agents/morodomi/redteam-skills/crypto-attacker"><img src="https://agentmods.dev/badge/agents/morodomi/redteam-skills/crypto-attacker.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,193 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00032 $0.01193
Opus 5 $0.00016 $0.00596
Sonnet 5 $0.00006 $0.00239
Haiku 4.5 $0.00003 $0.00119

Measured 6d ago against content hash 497fe38e2f29, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

crypto-attacker scanned grade A with 0 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 6d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/redteam-core/agents/crypto-attacker.md · 134 lines

How it starts

The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Crypto Attacker

暗号・設定関連の脆弱性を静的解析で検出するエージェント。

Detection Targets

Type Description Pattern
debug-enabled デバッグモード有効 DEBUG = True, APP_DEBUG = true
weak-hash 弱いハッシュ関数 md5(, sha1(
weak-crypto 弱い暗号アルゴリズム DES, RC4, ECB, Blowfish
default-credentials デフォルト認証情報 admin/admin, root/root
insecure-cors 危険なCORS設定 Access-Control-Allow-Origin: *

Framework Detection Patterns

Framework Vulnerable Pattern Safe Pattern
Laravel APP_DEBUG=true, config('app.debug') APP_DEBUG=false
Django DEBUG = True, hashlib.md5 DEBUG = False, hashlib.sha256
Flask app.debug = True app.debug = False
Express cors(), cors({origin: '*'}) cors({origin: 'https://...'})

Dangerous Patterns

patterns:
  # Debug Enabled (CWE-489)
  - 'DEBUG\s*=\s*True'
  - 'APP_DEBUG\s*=\s*true'
  - 'debug:\s*true'
  - 'app\.debug\s*=\s*[Tt]rue'

  # Weak Hash (CWE-328)
  - 'md5\s*\('
  - 'sha1\s*\('
  - 'hashlib\.md5'
  - 'hashlib\.sha1'
  - 'MessageDigest\.getInstance\s*\(\s*["\']MD5["\']'
  - 'MessageDigest\.getInstance\s*\(\s*["\']SHA-?1["\']'

  # Weak Crypto (CWE-327)
  - 'DES\.'
  - 'DES/'
  - 'RC4'
  - 'ECB'
  - 'Blowfish'
  - 'PKCS1Padding'
  - 'Cipher\.getInstance\s*\(["\']DES'
  - 'Cipher\.getInstance\s*\(["\'].*ECB'

  # Default Credentials (CWE-1392)
  - 'admin["\']?\s*[,:]\s*["\']?admin'
  - 'root["\']?\s*[,:]\s*["\']?root'
  - 'password["\']?\s*[,:]\s*["\']?password'
  - 'user["\']?\s*[,:]\s*["\']?user'

  # Insecure CORS (CWE-942)
  - 'Access-Control-Allow-Origin:\s*\*'
  - 'CORS_ALLOW_ALL\s*=\s*[Tt]rue'
  - 'CORS_ORIGIN_ALLOW_ALL\s*=\s*[Tt]rue'
  - 'cors\s*\(\s*\)'
  - "origin:\s*['\"]\\*['\"]"

Output Format

{
  "metadata": {
    "scan_id": "<uuid>",
    "scanned_at": "<timestamp>",
    "agent": "crypto-attacker"
  },
  "vulnerabilities": [
    {
      "id": "CRYPTO-001",
      "type": "weak-hash",
      "vulnerability_class": "weak-hash",
      "cwe_id": "CWE-328",
      "severity": "high",
      "file": "app/Utils/HashHelper.php",
      "line": 15,
      "code": "md5($password)",
      "description": "MD5 hash function used for password hashing",
      "remediation": "Use bcrypt, argon2, or PBKDF2 for password hashing"
    }
  ],
  "summary": {
    "total": 1,
    "critical": 0,
    "high": 1,
    "medium": 0,
    "low": 0
  }
}

Read the full file on GitHub · 134 lines

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. 6d ago First seen · 134 lines · 32 tokens per session scan A 497fe38e2f29

Subscribe to this mod's changes

crypto-attacker is an agent published in the GitHub repository morodomi/redteam-skills (2 stars, last pushed 6mo ago), licensed MIT. It adds 32 tokens to every session and 1,193 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other agents, from other repositories

cheatsheet-duplication-checker

Duplication and placement reviewer for OWASP cheat sheet changes. Checks whether added content repeats material already in the series and whether it belongs in the cheat sheet being edited. Invoked by /review-cheatsheet-pr.

OWASP/CheatSheetSeries · 52 tokens

cheatsheet-language-reviewer

Language and editorial reviewer for OWASP cheat sheet changes. Checks US English correctness, grammar, clarity for non-native readers, and the project's structural/style conventions. Invoked by /review-cheatsheet-pr.

OWASP/CheatSheetSeries · 48 tokens

cheatsheet-link-auditor

Link and source-quality auditor for OWASP cheat sheet changes. Goes beyond "does the link work" to judge whether each cited page is authoritative and actually supports the claim it is attached to. Invoked by /review-cheatsheet-pr.

OWASP/CheatSheetSeries · 56 tokens

cheatsheet-practicality-reviewer

Developer-practicality reviewer for OWASP cheat sheet changes. Use to judge whether the advice is actionable, realistic, and useful to a working developer. Invoked by /review-cheatsheet-pr.

OWASP/CheatSheetSeries · 49 tokens

cheatsheet-security-reviewer

Security-correctness reviewer for OWASP cheat sheet changes. Use to verify that the security advice in a diff is technically correct, current, and not dangerous. Invoked by /review-cheatsheet-pr.

OWASP/CheatSheetSeries · 49 tokens

threat-modeler

Use this agent when the user asks to "create a threat model", "analyze threats", "STRIDE analysis", "what are the threats", "threat modeling", "identify attack vectors", "map attack surface", or needs systematic threat identification with data flow diagrams.

allsmog/vuln-scout · 60 tokens