reverse-engineering-binaries-with-ghidra

reverse-engineering-binaries-with-ghidra is a skill for Claude Code, Codex from meltedinhex/analyst-ai-pack. It costs 80 tokens per session (886 once invoked), scanned A, original, Apache-2.0.

A guide to examining compiled programs with Ghidra, a free tool that shows machine instructions and generates readable approximations of source code.

In plain words
What is it for?
Use it to import and analyse PE, ELF, or Mach-O files, follow imports and strings, annotate decompiled code, extract configuration, and automate analysis with scripts.
Why use it?
It helps turn a binary into understandable code and locate important routines, configuration, encryption, and command-and-control details. It is intended for unpacked samples and static analysis.

Skill for Claude CodeCodex

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

Good fit Use it to import and analyse PE, ELF, or Mach-O files, follow imports and strings, annotate decompiled code, extract configuration, and automate analysis with scripts.

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Install with agentmods
npx agentmods add skills/meltedinhex/analyst-ai-pack/reverse-engineering-binaries-with-ghidra
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 meltedinhex/analyst-ai-pack --skill reverse-engineering-binaries-with-ghidra
Clone the repo
git clone --depth 1 https://github.com/meltedinhex/analyst-ai-pack

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 reverse-engineering-binaries-with-ghidra

README.md
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<a href="https://agentmods.dev/skills/meltedinhex/analyst-ai-pack/reverse-engineering-binaries-with-ghidra"><img src="https://agentmods.dev/badge/skills/meltedinhex/analyst-ai-pack/reverse-engineering-binaries-with-ghidra.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 886 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 $0.00080 $0.00886
Opus 5 $0.00040 $0.00443
Sonnet 5 $0.00016 $0.00177
Haiku 4.5 $0.00008 $0.00089

Measured 7d ago against content hash 3d3b4e4989b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

reverse-engineering-binaries-with-ghidra 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 7d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/analyst.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.

skills/reverse-engineering-binaries-with-ghidra/SKILL.md · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Reverse Engineering Binaries with Ghidra

When to Use

  • Static/dynamic triage has identified functionality that needs code-level understanding.
  • You need to reverse a C2 protocol, decryption routine, or custom obfuscation.
  • You want to extract hardcoded config (C2, keys, campaign IDs) from compiled code, or automate extraction across many samples via headless scripts.

Do not use Ghidra as a first step for unknown samples — triage statically and behaviorally first, and unpack before decompiling a packed binary.

Prerequisites

  • Ghidra 11.x with JDK 17+.
  • An isolated analysis host.
  • Familiarity with x86/x64 (or the target arch) and OS API conventions.
  • The sample unpacked (decompiling packed code wastes effort).

Safety & Handling

  • Ghidra performs static analysis and does not run the sample, but still work in the lab.
  • Treat any dumped/derived payloads as live samples.

Workflow

Step 1: Import and auto-analyze

Create a project, import the binary (Ghidra detects PE/ELF/Mach-O and arch), and run auto-analysis with default analyzers.

Step 2: Navigate to interesting code

Start from imports (Symbol Tree) and strings (Defined Strings). Cross-reference (X) from a suspicious API or string to its callers to reach the relevant function quickly.

VirtualAlloc/WriteProcessMemory -> injection logic
InternetOpen/WinHttp*           -> C2
CryptEncrypt / custom XOR loops -> crypto/config decode

Step 3: Annotate the decompiler output

Retype variables, rename functions, and add comments as you understand the code. Good naming turns the decompiler into readable pseudo-C and compounds across a session.

Step 4: Automate with headless scripts

For repeatable extraction, run Ghidra headless with a post-script. The bundled Python uses analyzeHeadless to export functions/strings to JSON:

python scripts/analyst.py headless --ghidra /opt/ghidra --bin sample.bin --out out.json

Step 5: Extract the target artifact

Read the full file on GitHub · 107 lines

Files

What ships with it

3 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. 7d ago First seen · 107 lines · 80 tokens per session scan A 3d3b4e4989b9

Subscribe to this mod's changes

reverse-engineering-binaries-with-ghidra is a skill published in the GitHub repository meltedinhex/analyst-ai-pack (22 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 80 tokens to every session and 886 once invoked, about $0.0004 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 2026-09-03.

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