binary-diff SKILL.md skillA
binary-diff from coco-research/coco is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add coco-research/coco/binary-diff@git:20260914.480426ePins git:20260914.480426e in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- coco-research/coco
- Path
systems/reverse-skill/skills/binary-diff/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260914.480426e, committed Sep 14, 2026
- Size
- 9,935 bytes
- Repository stars
- 796
- License
- a license file GitHub does not identify
跨版本符号迁移与二进制差分。当你有旧版本的符号/逆向结果，需要快速迁移到新版本时使用。 适用场景：内核缺 PDB 用旧版符号推导、程序更新后批量迁移函数名、应用更新后快速定位新偏移。 核心方法：用 LLM 做结构化差异比对，程序化输入输出，成本极低（200 函数 ~1 元）。 触发关键词：符号迁移、bindiff、跨版本、PDB 缺失、函数偏移迁移、symbol migration、binary diff、版本对比。.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# 跨版本符号迁移 (Binary Diff)
## 适用范围
当任务属于以下场景时使用本 skill：
1. **内核/驱动缺 PDB** — 有旧版 ntoskrnl.exe 的符号，新版 PDB 被微软下架，需要用旧版符号推导新版非导出函数地址
2. **程序更新后符号迁移** — 曾经逆向过某个程序，程序更新了，不想重新逆一遍，用旧版结果批量迁移
3. **保护机制更新** — 旧版有完整逆向结果，新版需要快速定位同一函数的新偏移
4. **任何"有旧版符号 + 新版无符号"的二进制对比场景**
### 与其他 skill 的分工
| 场景 | 用什么 |
|------|--------|
| 从零开始逆向一个二进制 | `ida-reverse/` 或 `radare2/` |
| 有旧版结果，迁移到新版 | **本 skill** |
| 两个完全不同的二进制对比 | BinDiff / Diaphora（传统工具） |
### 核心优势
相比传统方案：
| 方案 | 200 个函数成本 | 时间 | 准确率 |
|------|--------------|------|--------|
| 人工开两个 IDA 窗口对比 | 免费但耗命 | 数小时 | 高 |
| BinDiff 自动匹配 | 免费 | 快 | 中（结构变化大时失效） |
| 完全交给 Agent（CC/Codex） | 50-100 元 | 慢 | 高 |
| **本 skill（LLM 批量比对）** | **~1 元** | **~10 秒/函数** | **高** |
## 核心原理
```text
旧版函数（有符号） 新版同一函数（无符号）
↓ ↓
导出反汇编 + 伪代码 导出反汇编 + 伪代码
↓ ↓
└──────── LLM 结构化比对 ────────┘
↓
输出 YAML（符号映射表）
↓
程序化解析 → 批量应用到新版 IDB
```
关键点：
- prompt 是固定模板，程序化填充
- 输入输出格式确定，程序化解析
- LLM 只负责"看两段代码，找出对应关系"这一步
- 时间成本和 token 成本极低
## Prompt 模板
### 标准比对 Prompt
```text
I have disassembly outputs and procedure code of the same function.
…Read the whole file at its exact version.
How to install
mdr add coco-research/coco/binary-diff@sha256:a5d9d79787998ed9The line at the top of this page pins the label git:20260914.480426e, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_owo2o4akiiookxl5)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 14, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (9935 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
coco-research/coco · 796 stars · license a license file GitHub does not identify · pushed 2026-10-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_owo2o4akiiookxl5 GET https://markdownregistry.com/api/v1/resolve?ref=coco-research/coco/binary-diff GET https://markdownregistry.com/api/v1/blob/a5d9d79787998ed94dc6b17f67159c7bc013aca3ad92fc95748b5b42f45855b8
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
More from coco-research/coco
Every file in coco-research/coco