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Security48k · #3305

ida-reverse

Helps your agent analyze computer programs at a low level. It investigates the code to find security flaws or understand how it works.

What it does

This tool helps analyze computer programs (executable files) to understand how they work internally. It decompiles code, shows instructions, tracks data flow, and finds connections between different parts of the program.

When to use it

  • ✓When you need to understand a program without having the source code.
  • ✓To investigate how a program handles data.
  • ✓When looking for vulnerabilities or suspicious behavior in an executable.

Example of what to ask your AI

“Analyze the file 'my_program.exe' and tell me which functions it calls.”

Want more? Open the sections below.

How to use

The easiest way: copy the message below and paste it into Claude, ChatGPT, Cursor or any AI. It reads the skill and follows the instructions.

Skill link

https://github.com/sickn33/agentic-awesome-skills/blob/main/plugins/agentic-awesome-skills-claude/skills/ida-reverse/SKILL.md

Ready-to-paste message

Use this skill to help me: https://github.com/sickn33/agentic-awesome-skills/blob/main/plugins/agentic-awesome-skills-claude/skills/ida-reverse/SKILL.md Read the SKILL.md file at that link and follow its instructions for my task.
How it works

The tool uses IDA Pro, a specialized reverse engineering program. It loads the executable file and applies techniques like decompilation and data flow analysis to reveal the program's structure and behavior.

Installation

Easiest way: copy the skill link and paste it into Claude, ChatGPT or Cursor asking it to follow the instructions.

In the terminal (Claude Code, Codex, Cursor), in your project folder:

npx skills add sickn33/agentic-awesome-skills --skill ida-reverse

Or download just the file:

curl -L https://raw.githubusercontent.com/sickn33/agentic-awesome-skills/main/plugins/agentic-awesome-skills-claude/skills/ida-reverse/SKILL.md -o SKILL.md
Technical content (original SKILL.md)

Original text by the author, straight from GitHub.

Bundled upstream support

Supporting files are included at skill-relative paths. See UPSTREAM-NOTICE.md for their pinned sources, licenses, hashes, and import changes.

Supporting material availability

These paths remain unavailable in this catalog copy:

  • <support-root>/scripts/start.ps1
  • <support-root>/scripts/install-autostart.ps1

Do not invoke a step that requires one of these files. Obtain the original material and review its dependencies, license, and effects before use. Independent inline steps and the bundled helpers can proceed within the user’s authorized scope.

IDA Pro 逆向分析技能

When to Use

  • Deep static analysis of a compiled target where IDA is available.
  • Tracking data flow or cross-references through large binaries.

已知问题与反思(必读)

踩过的坑

  1. idb_open(旧名 idalib_open)不要直接靠部分 AI 客户端 MCP 调用

    • 部分代码 AI 客户端 的 MCP 客户端对 open 类工具的 output schema 校验有 BUG
    • 报错:Structured content does not match the tool's output schema
    • 解决办法:使用 scripts/open.ps1 脚本通过 HTTP API 直调,绕过 MCP 校验层
    • 当前 ida-pro-mcp 2.x 工具名为 idb_open / idb_list / idb_save(不再是 idalib_*)
    • 文件打开后返回 session_id(database),后续工具调用需带该 session
  2. C:\Windows\System32\ 文件无权限打开

    • idalib 无法直接读取 System32 目录下的文件
    • 解决办法:open.ps1 自动检测并复制到 临时目录 目录后再打开
  3. 启动服务器命令阻塞对话

    • idalib-mcp 启动后会持续输出 INFO 日志到控制台
    • 解决办法:使用 scripts/start.ps1(-WindowStyle Hidden 后台静默启动)
    • 脚本会等待服务就绪后自动退出,不阻塞对话
  4. MCP 服务器名不能用横线

    • 之前用 ida-pro-mcp 作为服务器名,可能引起工具注册问题
    • 当前配置:服务器名 idapro,工具前缀 idapro_*
  5. Remote HTTP vs Local Stdio

    • type:"local"(stdio)模式:idalib_open 同样有 schema 校验问题
    • type:"remote"(HTTP)模式:可以先用脚本直开文件,再用 MCP 工具
    • 当前方案:Remote HTTP 模式
  6. PR #389 修复了部分 schema 问题

    • 作者 mrexodia 在 issue #388 后通过 PR #389 合并了修复
    • 修复了 HTTP 模式下的 structuredContent schema,但 部分代码 AI 客户端 侧校验仍有问题
    • 已安装最新 main 分支版本
  7. idalib 超时留下孤儿 worker 进程锁文件

    • 第一次 open.ps1 超时后,idalib 的 python worker 子进程可能变成孤儿,咬着 .id0/.id1/.nam 不放
    • 后续任何工具或手动拖入 IDA GUI 都会报"权限不足"
    • 禁止 taskkill /F /T 杀进程树——/T 会把 GUI ida.exe 子进程一起干掉
    • 解决办法:start.ps1 只在端口无人监听、或 tools/list 快速返回但缺 py_eval(旧 supervisor)时替换 managed supervisor;RPC 超时且 13337 仍在听视为忙,不杀
    • 兜底:open.ps1 检测到旧库被锁自动复制到 Temp 并加 GUID 前缀
  8. 带自动分析打开看起来像卡死

    • idalib_open(run_auto_analysis=true) 可能长时间不回包,但后端实际上仍在继续打开和分析
    • 之前用户侧看到的是“PowerShell 一直无输出”,容易误判成脚本卡死
    • 当前解决办法:open.ps1 新增 -TimeoutSeconds,并改为后台请求 + 前台轮询 + 定时进度输出
    • 轮询到会话已就绪时会提前返回 OK:文件名:session_id,超时则返回 ERR:open_timeout_xxs
  9. HTTP MCP 会在登录后静默退出

    • Cursor/Claude 的 type: http 不会代为拉起进程;旧计划任务只在登录时跑一次
    • pythonw 无控制台,崩溃时 Application 日志也是空的
    • 解决办法:start.ps1 默认健康则复用;watchdog.ps1 每分钟巡检;日志在 %LOCALAPPDATA%\reverse-skill\ida-mcp\
    • 安装:scripts/install-autostart.ps1。Cursor 若启动时端口还没起来,仍需在 MCP 面板手动刷新一次

工作流程原则

步骤 做什么 用什么
1 确保 HTTP 服务器在运行 scripts/start.ps1(无参数)
2 打开目标二进制文件 scripts/open.ps1 -Path "xxx.exe"
3 使用 MCP 分析工具 直接调用 idapro_* / HTTP tools(约 65 个,视版本而定)
4 分析完毕 工具自动可用

脚本资源

start.ps1 — 启动 MCP HTTP 服务器

路径:scripts/start.ps1

  • 自动解析 IDADIR(环境变量 / 便携版桌面路径 / 常见安装路径)
  • 优先用 IDA 自带 Python314\python.exe -m ida_pro_mcp.idalib_supervisor
  • 默认先探测 http://127.0.0.1:13337/mcp,健康则输出 OK:<n>:reuse 并退出
  • 13337 在听但 tools/list 超时 → WARN:busy / OK:busy:reuse,不杀(supervisor 单线程,开库时无法回包)
  • 仅在端口无人监听、或快速返回且缺 py_eval 时替换 managed supervisor;永不杀 ida.exe,不用 taskkill /T
  • GUI 占用 13337 时输出 WARN:gui_busy 并退出,不另起 supervisor
  • 成功输出 OK:<工具数>(当前约 66),失败输出 ERR:timeout
  • supervisor 日志:%LOCALAPPDATA%\reverse-skill\ida-mcp\supervisor.log
  • 服务器在后台运行,不阻塞对话

调用方式:

powershell -File "<skill-root>\ida-reverse\scripts\start.ps1"

watchdog.ps1 / install-autostart.ps1 — 保活

  • watchdog.ps1:探测 13337,健康则 OK:<n>:reuse,挂了才调用 start.ps1
  • install-autostart.ps1:注册计划任务 reverse-skill-ida-mcp(登录 + 每分钟)
  • 日志:%LOCALAPPDATA%\reverse-skill\ida-mcp\watchdog.log

open.ps1 — 打开二进制文件

路径:scripts/open.ps1

  • 通过 HTTP API 直调 idb_open,绕过 MCP schema 校验
  • 自动检测 System32 路径并复制到临时目录
  • 自动清理同名旧数据库文件(.id0/.id1/.nam/.til/.i64)
  • 旧库被锁时自动降级:复制到 Temp 加 GUID 前缀后打开,不报错
  • 将打开请求放到后台执行,避免长时间同步等待导致脚本无响应
  • 支持 -TimeoutSeconds,超时后返回 ERR:open_timeout_xxs,不会无限卡住
  • 每隔 10 秒输出一次 INFO:opening:已用时/超时秒数,便于判断仍在分析中
  • 成功输出 OK:文件名:session_id,降级时加 (temp copy) 标记
  • 失败时自动重试走 Temp 副本

调用方式:


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FAQ

What is reverse engineering?

It's the process of taking apart a product (in this case, a computer program) to understand how it was made and how it works, without having access to the original plans (the source code).

Do I need to have IDA Pro installed?

The tool utilizes IDA Pro's capabilities, but you don't need to install it separately. The tool handles that.

What types of files can it analyze?

It can analyze common executable files on systems like Windows (PE), Linux (ELF), and macOS (Mach-O).

Details

Original description by the author

Reverse engineer binaries with IDA Pro: decompilation, disassembly, data-flow tracking, cross-references, and IDA MCP automation for deep static analysis of PE/ELF/Mach-O targets.

repo: sickn33/agentic-awesome-skills

Popularity

GitHub stars
48k
Ranking position
#3305
License
MIT
Updated
10/15/2026

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