firmware-analysis

firmware-analysis is a skill for Claude Code, Codex from wgpsec/AboutSecurity. It costs 118 tokens per session (4,158 once invoked), scanned D, original, no licence file.

A guide to examining the software inside embedded devices such as routers, cameras, and industrial equipment. Firmware is the low-level software that runs these devices.

In plain words
What is it for?
Use it to obtain and unpack firmware, inspect its files, emulate it with QEMU, search for vulnerabilities, and modify or rebuild firmware for testing.
Why use it?
It helps uncover hard-coded passwords, encryption keys, backdoors, and other weaknesses that may not be visible from the device's user interface.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to obtain and unpack firmware, inspect its files, emulate it with QEMU, search for vulnerabilities, and modify or rebuild firmware for testing.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/wgpsec/aboutsecurity/firmware-analysis
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 wgpsec/AboutSecurity --skill firmware-analysis
Clone the repo
git clone --depth 1 https://github.com/wgpsec/AboutSecurity

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 firmware-analysis

README.md
[![agentmods](https://agentmods.dev/badge/skills/wgpsec/aboutsecurity/firmware-analysis/github.svg)](https://agentmods.dev/skills/wgpsec/aboutsecurity/firmware-analysis)
Your own site
<a href="https://agentmods.dev/skills/wgpsec/aboutsecurity/firmware-analysis"><img src="https://agentmods.dev/badge/skills/wgpsec/aboutsecurity/firmware-analysis/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 firmware-analysis

Your own site · 80×15
<a href="https://agentmods.dev/skills/wgpsec/aboutsecurity/firmware-analysis"><img src="https://agentmods.dev/badge/skills/wgpsec/aboutsecurity/firmware-analysis.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 118 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,158 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 3 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00118 $0.04158
Opus 5 $0.00059 $0.02079
Sonnet 5 $0.00024 $0.00832
Haiku 4.5 $0.00012 $0.00416

Measured 5d ago against content hash 05066eba63d8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade D, and why

firmware-analysis scanned grade D with 3 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 5d 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo ./emba -f firmware.bin -l ./logs

Reaches for credential fileshighPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

│ ├─ 添加 SSH 公钥到 /root/.ssh/authorized_keys

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s http://<device-ip>/ | grep -oP 'action="[^"]*"|href="[^"]*"'
skills/hardware/firmware-analysis/SKILL.md · 429 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file 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. 5d ago First seen · 429 lines · 118 tokens per session scan D 05066eba63d8

Subscribe to this mod's changes

firmware-analysis is a skill published in the GitHub repository wgpsec/AboutSecurity (1,725 stars, last pushed 9d ago), with no licence file. It adds 118 tokens to every session and 4,158 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it D with 3 findings (asks for root, reaches for credential files, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.