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Thick Client

ASecurity

Use for authorized security testing of desktop thick clients including local storage, update channels, IPC, traffic, and client-side trust boundaries.

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  • Added September 12, 2026
developmentrustsqltestingapisecurity

Works with

  • cli
  • api

Security analysis

A100/100

Pro scans all 2 files and shows the line behind each finding

Scanned September 12, 2026

npx -y skills add stanfish06/skillquarium --skill thick-client --agent claude-code

Installs into .claude/skills of the current project.

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SKILL.md
---
name: thick-client
description: Use for authorized security testing of desktop thick clients including local storage, update channels, IPC, traffic, and client-side trust boundaries.
---

# Thick Client Security Testing

## ACTION REQUIRED(读完后立刻执行)

1. `NOW`: 读取 `../reverse-skill-router/field-journal/precedent-pentest.md`
2. `NOW`: 确认目标是 **桌面厚客户端**(Win/macOS/Linux GUI 或服务伴生),非纯 Web
3. `NOW`: case-init;安装包来源与测试账号写入 scope
4. `NEXT`: 工具(Burp 上游代理、进程监控、逆向工具)
5. `ACT`: 信任边界图 → 本地面 → 网络面 → 更新/供应链

## 适用场景

- C/S 架构客户端、Electron/Qt/.NET WinForms/WPF
- 本地配置/凭证存储、IPC、命名管道
- 客户端强制校验绕过研究(授权)
- 自动更新通道与代码签名验证

## 工作流

### 1. 建边界

```text
□ 进程树、子进程、驱动/服务
□ 监听端口与出站域名
□ 本地敏感路径:%APPDATA%、Keychain、注册表
```

### 2. 本地攻击面

```text
□ 明文配置、硬编码密钥、调试开关
□ DLL 劫持/搜索顺序(Windows)
□ 数据库文件(SQLite)权限与加密
□ IPC:谁可连接?是否鉴权?
```

### 3. 网络面

```text
□ 系统代理 / 应用自定义 TLS
□ 证书钉扎 → 联合 mobile/js 方法学或 Frida
□ API 越权:客户端隐藏的管理接口
```

### 4. 逆向验证

```text
□ .NET → dotnet-reverse;原生 → ida/ghidra;Electron → asar + js-reverse
```

## 工具链

| 工具 | 用途 |
|------|------|
| Process Monitor / API Monitor | 行为 |
| Burp / mitmproxy | 流量 |
| dnSpy / IDA / Ghidra | 逆向 |
| Sysinternals | Windows 面 |
| asar / nexe 检测 | Electron |

## 参考

- `references/thick-client-checklist.md`
- `../dotnet-reverse/` `../ida-reverse/` `../js-reverse/` `../api-security/`

## 路由上下文

**上游**: MASTER R32  
**下游**: 纯协议 `protocol-reverse`;供应链更新 `supply-chain-security`

## 任务完成自检

- [ ] 是否画出信任边界?
- [ ] 本地+网络面是否都覆盖?
- [ ] Checklist?

Files in this skill

  • SKILL.md2.1 KB
  • references/thick-client-checklist.md265 B

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