What is living-off-the-land-lolbins-mcp-server CLAUDE.md?

A set of Claude Code instructions for a TypeScript MCP server about living-off-the-land binaries: legitimate system tools that attackers may misuse. It documents the server's architecture, security rules, data catalogs, and development commands.

Use it when developing or maintaining the server that searches attack techniques, privilege-escalation paths, defense-evasion methods, detection ideas, and threat-actor links across its listed catalogs.

It gives contributors consistent rules for extending and operating this security-analysis server. The instructions help keep imports, API handling, caching, error behavior, and tool definitions aligned.

How badchars/living-off-the-land-lolbins-mcp-server configures Claude

Reuse

Borrowing it

Nothing to install: this file belongs to badchars/living-off-the-land-lolbins-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/badchars/living-off-the-land-lolbins-mcp-server/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/badchars/living-off-the-land-lolbins-mcp-server

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/badchars/living-off-the-land-lolbins-mcp-server/claude-md/github.svg)](https://agentmods.dev/instructions/badchars/living-off-the-land-lolbins-mcp-server/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/badchars/living-off-the-land-lolbins-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/badchars/living-off-the-land-lolbins-mcp-server/claude-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/badchars/living-off-the-land-lolbins-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/badchars/living-off-the-land-lolbins-mcp-server/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 414 This file is loaded in full into every session.

When invoked 414 The same file — it is already loaded in full.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00414	$0.00414
Opus 5	$0.00207	$0.00207
Sonnet 5	$0.00083	$0.00083
Haiku 4.5	$0.00041	$0.00041

Measured 12d ago against content hash ee651c507576, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

living-off-the-land-lolbins-mcp-server CLAUDE.md 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 12d 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.

CLAUDE.md · 34 lines

What it actually says

living-off-the-land-lolbins-mcp — LOL Binary Intelligence MCP Server

Overview

59 composite tools (290 techniques) MCP server for Living off the Land binary intelligence: GTFOBins, LOLBAS, LOOBins, LOLDrivers, LOLRMM, LOLESXi, LOTP, LOLC2, LOFLCAB, WADComs catalogs with attack graph reasoning, privilege escalation paths, defense evasion, detection engineering, threat actor mapping, and purple team planning.

Architecture

Runtime: Bun 1.3.9+ (dev), Node.js (publish)
Dependencies: @modelcontextprotocol/sdk, yaml, zod
Transport: stdio only
Pattern: 59 composite tools in src/composite/ orchestrate 290 individual techniques from providers under src/providers/

Key Rules

TypeScript strict mode, English code/comments
Native fetch() for all HTTP APIs
Every tool schema field must have .describe()
API keys always optional — graceful error when missing
Rate limiter + TTL cache per provider
Import paths use .js extension (ESM)

Catalogs (10)

gtfobins (478), lolbas (117), loobins (62), loldrivers (660), lolrmm (317), lolesxi (19), lotp (60), lolc2 (55), loflcab (394), wadcoms (100)

Commands

bun install          # Install deps
bun run dev          # Dev mode (watch)
bun run build        # Build for npm
bun run snapshot     # Fetch catalog data → data/
bun run src/index.ts --help       # CLI help
bun run src/index.ts --list       # 59 composite tools
bun run src/index.ts --list-all   # 290 individual techniques
bun run src/index.ts --tool <name> '<json>'  # Run tool (composite or individual)

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.

12d ago First seen · 34 lines · 414 tokens per session scan A ee651c507576

Subscribe to this mod's changes

living-off-the-land-lolbins-mcp-server CLAUDE.md is an instructions file published in the GitHub repository badchars/living-off-the-land-lolbins-mcp-server (1 stars, last pushed today), licensed MIT. It adds 414 tokens to every session, about $0.0021 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.

Security blue-team detection-engineering gtfobins living-off-the-land lolbas lolbins

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living-off-the-land-lolbins-mcp-server: Instructions file for Claude Code