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/ffind

Advanced file finder with type detection and filesystem extraction for analyzing firmware and extracting embedded filesystems. Use when you need to analyze firmware files, identify file types, or extract ext2/3/4 or F2FS filesystems.

From plugin
iothackbot
88513 skills

Claude Code

$ npx -y skills add brownfinesecurity/iothackbot --skill ffind --agent claude-code

SKILL.md

ffind.SKILL.md
name: ffind
description: Advanced file finder with type detection and filesystem extraction for analyzing firmware and extracting embedded filesystems. Use when you need to analyze firmware files, identify file types, or extract ext2/3/4 or F2FS filesystems.

Ffind - Advanced File Finder with Extraction

You are helping the user find and analyze files with advanced type detection and optional filesystem extraction capabilities using the ffind tool.

Tool Overview

Ffind analyzes files and directories, identifies file types, and can extract filesystems (ext2/3/4, F2FS) for deeper analysis. It's designed for firmware and IoT device analysis.

Instructions

When the user asks to analyze files, find specific file types, or extract filesystems:

1. **Understand the target**:

  • Ask what path(s) they want to analyze
  • Determine if they want to extract filesystems or just analyze
  • Ask if they want all file types or just artifact types

2. **Execute the analysis**:

  • Use the ffind command from the iothackbot bin directory
  • Basic usage: `ffind <path> [<path2> ...]`
  • To extract filesystems: `ffind <path> -e`
  • Custom extraction directory: `ffind <path> -e -d /path/to/output`
  • Show all file types: `ffind <path> -a`
  • Verbose output: `ffind <path> -v`

3. **Output formats**:

  • `--format text` (default): Human-readable colored output with type summaries
  • `--format json`: Machine-readable JSON
  • `--format quiet`: Minimal output

4. **Extraction capabilities**:

  • Supports ext2/ext3/ext4 filesystems (requires e2fsprogs)
  • Supports F2FS filesystems (requires f2fs-tools)
  • Requires sudo privileges for extraction
  • Default extraction location: `/tmp/ffind_<timestamp>`

Examples

Analyze a firmware file to see file types:

ffind /path/to/firmware.bin

Extract all filesystems from a firmware image:

sudo ffind /path/to/firmware.bin -e

Analyze multiple files and show all types:

ffind /path/to/file1.bin /path/to/file2.bin -a

Extract to a custom directory:

sudo ffind /path/to/firmware.bin -e -d /tmp/my-extraction

Important Notes

  • **Name collision**: The Sleuth Kit also ships a `ffind` (it finds file names for a given inode and takes a disk image plus an inode number). If `which ffind` points at `/usr/bin/ffind` or `/usr/local/bin/ffind`, the iothackbot flags below (`-e`, `-d <dir>`, `-a`, `--format`) will be misread by the wrong binary. Confirm with `ffind --help` (the iothackbot tool shows `--extract`/`--format`); if it shows `image inode` usage, invoke the iothackbot tool by its full path in the repo `bin/` directory instead.
  • Extraction requires root/sudo privileges
  • Requires external tools: e2fsprogs, f2fs-tools, util-linux
  • Identifies "artifact" file types relevant to security analysis by default
  • Use `-a` flag to see all file types including common formats
Read more
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Open-source IoT security testing toolkit with integrated Claude Code skills for automated vulnerability discovery.

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Questions about ffind.

Which coding agents can use ffind?
ffind installs in Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode and Windsurf with the skills CLI, using each agent's flag shown on this page. Flowy's auto-invocation, which fires a skill when your prompt matches, runs in Claude Code only.