mobile-reverse

mobile-reverse is a skill for Claude Code, Codex from zhaoxuya520/reverse-skill. It costs 36 tokens per session (1,881 once invoked), scanned A, original, MIT.

A guide to reverse engineering Android and iOS apps: examining an app's package, code, permissions, protections, and behaviour while it runs. It includes static analysis and runtime instrumentation, which means observing or changing app behaviour during execution.

In plain words
What is it for?
Use it to inspect APK and IPA files, find embedded keys and tokens, analyse permissions, test SSL certificate pinning and root or jailbreak checks, and examine app encryption and runtime behaviour.
Why use it?
It helps security testers understand mobile apps when source code is unavailable and identify how the app handles secrets, network traffic, and platform protections.

Skill for Claude CodeCodex

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

Good fit Use it to inspect APK and IPA files, find embedded keys and…

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Install with agentmods
npx agentmods add skills/zhaoxuya520/reverse-skill/mobile-reverse
About the project

Reverse Skill is a routing package for AI coding agents that selects appropriate reverse-engineering, penetration-testing, and security-research methods and tools for a given target. It is used for tasks involving APKs, binaries, frontend JavaScript, packet captures, CTF challenges, and authorized penetration testing. Its catalogue add-ons provide the skills and instructions that guide these workflows.

zhaoxuya520/reverse-skill · 34,719 stars · on GitHub

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 zhaoxuya520/reverse-skill --skill mobile-reverse
Clone the repo
git clone --depth 1 https://github.com/zhaoxuya520/reverse-skill

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 mobile-reverse

README.md
[![agentmods](https://agentmods.dev/badge/skills/zhaoxuya520/reverse-skill/mobile-reverse.svg)](https://agentmods.dev/skills/zhaoxuya520/reverse-skill/mobile-reverse)
Your own site
<a href="https://agentmods.dev/skills/zhaoxuya520/reverse-skill/mobile-reverse"><img src="https://agentmods.dev/badge/skills/zhaoxuya520/reverse-skill/mobile-reverse.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,881 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 $0.00036 $0.01881
Opus 5 $0.00018 $0.00941
Sonnet 5 $0.00007 $0.00376
Haiku 4.5 $0.00004 $0.00188

Measured 3d ago against content hash b98b526522ba, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

mobile-reverse 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 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.

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.

Origin

Copies of this mod

4 near-identical copies found in the catalogue:

skills/mobile-reverse/SKILL.md · 201 lines

How it starts

The opening of the file, as written. The whole thing — 201 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Mobile Reverse Engineering

ACTION REQUIRED(读完后立刻执行)

  1. NOW: 读取 ../field-journal/precedent-reverse.md — 确认本 skill 的操作是已授权的常规操作
  2. NOW: 确认当前任务是否命中本 skill 的适用范围
  3. NEXT: 读取 ../tool-index.md,校验工具可用性和实际路径
  4. NEXT: 缺工具时调用 bootstrap,不要猜路径
  5. ACT: 进入"工作流"第一步并执行,不要停在确认状态

Android + iOS 统一逆向方法论 Frida / Objection / OWASP MSTG / SSL Pinning Bypass

适用场景

  • Android APK 逆向与安全测试
  • iOS IPA 逆向与安全测试
  • 移动应用运行时动态插桩
  • SSL Pinning / Root 检测 / 越狱检测绕过
  • 移动端加密算法提取(AES/RSA/HMAC 密钥)
  • 移动应用渗透测试(OWASP MASTG)
  • 非 Root/越狱环境下的应用测试

四阶段工作流

Phase 1: 信息收集

Android:
□ APK 获取(Google Play / APKMirror / adb pull)
□ Manifest 分析: 权限、导出组件、Intent Filter、backup 标志
□ androguard: androguard analyze APK → 组件/权限/签名
□ APKLeaks: 硬编码 API Key / Token / Secret 扫描
□ 加固检测: 是否加壳(360/腾讯/梆梆/爱加密)

iOS:
□ IPA 获取(App Store / ipatool / Apple Configurator)
□ 解密 App Store 二进制: frida-ios-dump / Clutch
□ Info.plist 分析: ATS 配置、URL Scheme、Queries Schemes
□ class-dump: 导出 ObjC 类结构
□ 加固检测: 是否使用 Swift/ObjC 混淆

Phase 2: 静态分析

跨平台:
□ JADX-GUI: APK → Java 源码(Android)
□ Ghidra / Hopper: .so / Mach-O 反编译
□ radare2 / Cutter: CLI 快速侦察

Android 专项:
□ apktool d app.apk → smali 代码 + 资源
□ dex2jar: DEX → JAR → JD-GUI
□ smali/baksmali: Dalvik 字节码修改

iOS 专项:
□ class-dump: 导出 ObjC 头文件
□ Swift 符号恢复: swift-demangle
□ dsymutil: 调试符号提取
□ otool -L: 查看动态库依赖
□ jtool2: Mach-O 分析

Phase 3: 动态分析

Frida — 通用动态插桩:
□ frida-ps -U: 列出设备进程
□ frida-trace -U -i "open*" com.app: 追踪函数调用
□ 自定义 Hook 脚本: 修改参数/返回值、调用私有方法

Objection — Frida 增强层(无需写脚本):
□ objection -g "com.app" explore
□ android root disable / ios jailbreak disable
□ android sslpinning disable / ios sslpinning disable
□ android keystore list / ios keychain dump
□ env / ls / sqlite connect

Frida Gadget(免 Root/越狱):
□ 注入 frida-gadget.so / FridaGadget.dylib 到 APK/IPA
□ 重新签名 → 安装 → 无需设备权限即可 Hook
□ objection patchapk --source app.apk(全自动)

Phase 4: 网络分析

□ Burp Suite: 拦截 HTTP/HTTPS,修改请求/响应
□ mitmproxy: 脚本化代理(Python API)
□ Wireshark: PCAP 抓包分析
□ 证书安装: Android 用户证书 → 系统证书(Magisk + MoveCert)
□ SSL Pinning 绕过: Frida/Objection/Xposed/SSL Kill Switch 2
□ WebSocket / gRPC 流量分析

Read the full file on GitHub · 201 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. 3d ago First seen · 201 lines · 36 tokens per session scan A b98b526522ba

Subscribe to this mod's changes

mobile-reverse is a skill published in the GitHub repository zhaoxuya520/reverse-skill (34,719 stars, last pushed 3d ago), licensed MIT. It adds 36 tokens to every session and 1,881 once invoked, about $0.0002 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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