pentest-credentials

pentest-credentials is a skill for Claude Code from fatihkan/badi. It costs 69 tokens per session (1,531 once invoked), scanned A, original, MIT.

A credential-security testing guide for identifying password-hash types, choosing wordlists, checking default passwords, and assessing password spraying or credential stuffing. Password hashes are transformed password values that can be tested offline without the original password.

In plain words
What is it for?
Use it to identify hashes, select Hashcat or John the Ripper methods, build targeted wordlists, and plan controlled checks of default or reused credentials.
Why use it?
It helps find weak or reused credentials while accounting for protections such as account lockout rules and the need for an authorised test scope.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: positional $N argument; mentions Claude Code.

Part of the badi plugin — 81 skills, 86 commands, 30 agents, 7 hooks shipped together

Good fit Use it to identify hashes, select Hashcat or John the Ripper methods, build targeted wordlists, and plan controlled checks of default or reused credentials.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/fatihkan/badi/pentest-credentials
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 fatihkan/badi --skill pentest-credentials
Clone the repo
git clone --depth 1 https://github.com/fatihkan/badi

Made for: Claude Code.

Or install badi, the plugin that ships this one along with the rest of its 81 skills, 86 commands, 30 agents, 7 hooks.

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 pentest-credentials

README.md
[![agentmods](https://agentmods.dev/badge/skills/fatihkan/badi/pentest-credentials.svg)](https://agentmods.dev/skills/fatihkan/badi/pentest-credentials)
Your own site
<a href="https://agentmods.dev/skills/fatihkan/badi/pentest-credentials"><img src="https://agentmods.dev/badge/skills/fatihkan/badi/pentest-credentials.svg" alt="Measured on agentmods" height="20"></a>
Per session 69 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,531 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00069 $0.01531
Opus 5 $0.00034 $0.00766
Sonnet 5 $0.00014 $0.00306
Haiku 4.5 $0.00007 $0.00153

Measured today against content hash 4c80141eb161, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

pentest-credentials 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 today.

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.

.claude/skills-vault/pentest-credentials/SKILL.md · 180 lines

How it starts

The opening of the file, as written. The whole thing — 180 lines — stays where its author put it; the contents beside it link to each section on GitHub.

pentest-credentials

Credential testing methodology. Offline hash crack + targeted wordlist + default cred audit. Online brute requires a scope declaration and account-lockout-policy awareness.

Triggers

  • "I found a hash, how do I crack it"
  • "crack with hashcat / john"
  • "generate a wordlist"
  • "password spray"
  • "default cred audit"
  • "credential stuffing test"

Hash Identification

# hashid (offline)
hashid "$2y$12$abcd..."                       # bcrypt detect
hashid "5f4dcc3b5aa765d61d8327deb882cf99"     # MD5

# haiti (modern alt)
haiti "$2y$12$abcd..."

Common hash modes (hashcat):

Hash Mode Command Example
MD5 0 hashcat -m 0 hash.txt wordlist.txt
SHA1 100 hashcat -m 100 ...
bcrypt 3200 hashcat -m 3200 ... (slow)
NTLM 1000 hashcat -m 1000 ...
NetNTLMv2 5600 from Responder
Kerberos AS-REP 18200 from GetNPUsers.py
Kerberos TGS-REP 13100 from GetUserSPNs.py
WPA2 (hash22000) 22000 from hcxpcapngtool
MS-SQL 2012+ 1731 T-SQL hash
LSA secrets 5500 (NetNTLMv1) Responder

Wordlist Strategy

Ready-Made Wordlists

rockyou.txt              — 14M (classic baseline)
SecLists/Passwords/*     — 1500+ specialized
Probable-Wordlists/      — statistically ordered
WeakPass dataset         — large merged set

Target-Specific Generation

# CeWL — scrape words from the site (QUIET)
cewl https://example.com -m 5 -w cewl-target.txt

# cupp — passwords from a user profile (offline interactive)
cupp -i
# Answer: name, date, pet, company, etc. -> target.txt

# Mentalist (GUI / CLI) — rule-based combine

# Crunch — pattern-based
crunch 8 12 -t Spring@^^^^ > crunch.txt        # Spring@2026, Spring@1990, ...

# hashcat rule sets
hashcat -m 1000 hash.txt rockyou.txt -r rules/best64.rule -r rules/d3ad0ne.rule
hashcat -m 0 hash.txt --increment -a 3 ?l?l?l?l?l?d?d?d  # mask attack

Mutation Rules

# Common mutation: Title + year + special
cat words.txt | sed 's/$/2026!/' >> mutated.txt
cat words.txt | sed 's/$/123/' >> mutated.txt
cat words.txt | awk '{print toupper(substr($0,1,1)) substr($0,2)}' >> mutated.txt

# Automated with Hashcat rules
hashcat --stdout words.txt -r rules/leetspeak.rule | sort -u > leet.txt

Read the full file on GitHub · 180 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. today First seen · 180 lines · 69 tokens per session scan A 4c80141eb161

Subscribe to this mod's changes

pentest-credentials is a skill published in the GitHub repository fatihkan/badi (7 stars, last pushed yesterday), licensed MIT. It adds 69 tokens to every session and 1,531 once invoked, about $0.0003 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 2026-09-06.

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