chipsec

A tool for examining UEFI and BIOS firmware files without running them. UEFI and BIOS are the software that starts a computer before its operating system loads.

In plain words
What is it for?
Use it to list embedded EFI programs with hashes, inspect firmware structure, extract stored UEFI settings, parse SPI flash information, and look for known malware or vulnerabilities.
Why use it?
It helps security analysts find suspicious firmware, known attacks, structural problems, and changes between firmware versions.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/brownfinesecurity/iothackbot/chipsec
Any agent
npx skills add BrownFineSecurity/iothackbot --skill chipsec
Clone the repo
git clone --depth 1 https://github.com/BrownFineSecurity/iothackbot

Made for: Claude Code, Codex.

Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,206 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
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 $0.00085 $0.04206
Opus 5 $0.00043 $0.02103
Sonnet 5 $0.00017 $0.00841
Haiku 4.5 $0.00009 $0.00421

Measured 3d ago against content hash 6be648b84397, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

chipsec scanned grade A with 1 finding 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 3d 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 rootlowPrivilege escalation

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

sudo mkdir -p "$CHIPSEC_DIR/logs"

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

skills/chipsec/SKILL.md · 536 lines

How it starts

The opening of the file, as written. The whole thing — 536 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Chipsec - UEFI Firmware Static Analysis

You are helping the user perform static security analysis of UEFI/BIOS firmware dumps using Intel's chipsec framework. This skill focuses exclusively on offline analysis capabilities that do not require kernel driver access or root privileges.

Tool Overview

Chipsec is Intel's Platform Security Assessment Framework. For static analysis of firmware dumps, it provides:

  • EFI executable inventory generation with cryptographic hashes
  • Detection of known UEFI malware and vulnerabilities
  • Firmware structure decoding and extraction
  • NVRAM/UEFI variable extraction
  • SPI flash descriptor parsing
  • Baseline comparison for change detection

Prerequisites

One-Time Setup (Fix Logging Permission)

Chipsec writes into a logs/ directory inside its install location. Create it once. The Python version in the path varies by system, so derive the path instead of hardcoding it:

CHIPSEC_DIR="$(find /usr/lib/python3*/site-packages ~/.local/lib/python3*/site-packages -maxdepth 1 -name chipsec -type d 2>/dev/null | head -1)"
sudo mkdir -p "$CHIPSEC_DIR/logs"
sudo chmod 777 "$CHIPSEC_DIR/logs"

Verify Installation

chipsec_main --version

Core Commands

All static analysis commands use these flags:

  • -i : Ignore platform check (required for offline analysis)
  • -n : No kernel driver (required for static analysis)

1. Malware and Vulnerability Scan (Primary Use)

Scan firmware for known threats including UEFI rootkits and SMM vulnerabilities:

chipsec_main -i -n -m tools.uefi.scan_blocked -a <firmware.bin>

Detected Threats:

Threat Description Reference
HT_UEFI_Rootkit HackingTeam commercial UEFI rootkit McAfee ATR
MR_UEFI_Rootkit MosaicRegressor APT UEFI implant Kaspersky
LoJax First UEFI rootkit found in the wild (Sednit/APT28) ESET
ThinkPwn SystemSmmRuntimeRt SMM code execution vulnerability cr4.sh
FirmwareBleed SMM Return Stack Buffer stuffing vulnerability Binarly

Read the full file on GitHub · 536 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. 3d ago First seen · 536 lines · 85 tokens per session scan A 6be648b84397

Subscribe to this mod's changes

chipsec is a skill published in the GitHub repository BrownFineSecurity/iothackbot (819 stars, last pushed 3mo ago), licensed MIT. It adds 85 tokens to every session and 4,206 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

add-macos-statusbar

Add a macOS menu bar status indicator for NanoClaw. Shows a bolt icon with a green/red dot indicating whether NanoClaw is running, with Start, Stop, and Restart controls. macOS only.

nanocoai/nanoclaw · 49 tokens

cli-anything-3mf

3MF mesh geometry editor — detect and resize cylindrical holes, repair meshes, compare 3D printing files. Works with BambuStudio and PrusaSlicer 3MF files.

HKUDS/CLI-Anything · 44 tokens

platform-port

Guide porting FastLED to new MCU platforms, including int.h types, clockless drivers, SPI implementations, and platform detection. Use when adding support for a new microcontroller family or board.

FastLED/FastLED · 42 tokens

doca-compress

Use this skill for hands-on DOCA Compress programming on a BlueField DPU, ConnectX NIC, or host with DOCA — enabling compress-deflate, decompress-deflate, decompress-lz4-stream, or decompress-lz4-block tasks on a docacompress context (the hardware supports DEFLATE both directions plus LZ4 decompress; LZ4 encode is NOT…

NVIDIA/skills · 242 tokens

pcbway

PCBWay PCB fabrication and assembly — turnkey/consigned assembly, design rules, ordering workflow. Alternative to JLCPCB for manufacturing. Use with KiCad. Use this skill when the user mentions PCBWay, needs turnkey assembly (PCBWay sources parts by MPN), has parts not available on LCSC, needs assembled boards with…

aklofas/kicad-happy · 119 tokens

anta-validation

Validate Arista EOS network state with structured pass/fail verdicts using ANTA. Use for "is this switch healthy", "did my change break anything", "verify BGP/interfaces/hardware are correct", "run a health check on this device". Read-only. A test for a feature the device does not run reports notapplicable — never a…

automateyournetwork/netclaw · 84 tokens