跳到主要内容
知仓学习社ZHICANG

mobile-reverse

Authorized Android/iOS application reverse engineering and security testing: APK/IPA analysis, runtime instrumentation (Frida/Objection), SSL-pinnin…

不碰外部(只输出文字)无严重或高危命中sickn33/agentic-awesome-skills

它会碰到什么

扫了多少4 个文本文件,20 KB
它会碰到什么不碰外部(只输出文字)
命中总数0 处
命中统计严重 0 · 高 0 · 中 0 · 低 0

这一栏是扫描器报的事实,不是结论。命中多不等于有毒(安全工具、规则库、示例脚本本来就会包含危险写法),命中少也不等于干净。它和你手上的凭据、文件、网络有什么关系,需要你自己看。

技能内容

> ⚠️ AUTHORIZED USE ONLY

> This skill is for educational purposes or authorized security assessments only.

> You must have explicit, written permission from the system owner before using this tool.

> Misuse of this tool is illegal and strictly prohibited.

> Mandatory confirmation gate

> Before running any command that probes, exploits, changes, persists on, extracts data from, or attempts credential access against a target:

> 1. Ask the user to state the exact target URL, IP, account, or resource.

> 2. Ask the user to confirm written authorization and the permitted scope.

> 3. Show the exact command(s) and explain their expected effect.

> 4. Wait for explicit confirmation in the current conversation.

>

> Without that confirmation, remain read-only and provide defensive guidance only. Prefer a sandbox, disposable VM, or controlled lab.

Mobile Reverse Engineering

When to Use

  • Assessing a mobile app's security posture within an approved scope.
  • Instrumenting runtime behavior or bypassing transport protections in tests.

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

常见绕过速查

SSL Pinning

# Objection(最简)
objection -g "com.app" explore
android sslpinning disable

# Frida 通用脚本
frida -U -l ssl_pinning_bypass.js -f com.app

# Xposed(Android)
TrustMeAlready 模块 → 全局禁用证书校验

Root / 越狱检测

# Objection
android root disable
ios jailbreak disable

# Frida 自定义(多层检测)
Java.perform(function() {
    var RootBeer = Java.use("com.scottyab.rootbeer.RootBeer");
    RootBeer.isRooted.implementation = function() { return false; };
    // 额外绕过: Magisk su 检测、frida-server 检测、/proc/self/maps 检测
});

反调试

# Android
frida -U -l anti_debug_bypass.js -f com.app
# 绕过: ptrace(TracerPid)、/proc/self/status、isDebuggerConnected()

# iOS
# 绕过: PT_DENY_ATTACH、sysctl CTL_KERN/KERN_PROC/KERN_PROC_PID
frida -U -l ios_anti_debug.js -f com.app

移动端加密提取

// Android — Hook Cipher.getInstance 获取密钥+算法
Java.perform(function() {
    var Cipher = Java.use("javax.crypto.Cipher");
    Cipher.getInstance.overload('java.lang.String').implementation = function(algo) {
        console.log("[Cipher] Algorithm: " + algo);
        return this.getInstance(algo);
    };
    Cipher.init.overload('int', 'java.security.Key').implementation = function(mode, key) {
        console.log("[Cipher] Key: " + bytesToHex(key.getEncoded()));
        return this.init(mode, key);
    };
});

// iOS — Hook CCCrypt
Interceptor.attach(Module.findExportByName("libcommonCrypto.dylib", "CCCrypt"), {
    onEnter: function(args) {
        console.log("CCCrypt op: " + args[0] + " alg: " + args[1]);
        console.log("Key: " + hexdump(args[3], { length: args[4].toInt32() }));
    }
});

工具链

| 工具 | 平台 | 用途 |

|------|:--:|------|

| JADX-GUI | A | Java 反编译 |

| apktool | A | APK 解包/重建 |

| Ghidra | A+I | 多架构反编译 |

| Hopper | I | iOS 专用反汇编 |

| Frida | A+I | 动态插桩 |

| Objection | A+I | Frida REPL 增强 |

| MobSF | A+I | 自动化 SAST+DAST |

| class-dump | I | ObjC 类导出 |

| frida-ios-dump | I | IPA 解密 |

| jtool2 | I | Mach-O 分析 |

| Burp Suite | A+I | HTTP 拦截 |

| mitmproxy | A+I | 脚本化代理 |

> A=Android, I=iOS

参考

  • references/frida-objection-deep.md — Frida + Objection 深度用法
  • references/ios-reverse-guide.md — iOS 逆向专项
  • references/anti-detection-bypass.md — Root/越狱/反调试/SSL Pinning 绕过

任务完成自检(声称完成前 MUST 通过)

  • [ ] 我是否执行了工作流中的每一步(而不是只阅读)?
  • [ ] 我是否基于 tool-index 使用了真实工具路径?
  • [ ] 我是否产出了可复现证据(命令/脚本/截图/报告)?
  • [ ] 我是否完成并回写了 RULES 要求的 Checklist 项?

Limitations

  • iOS instrumentation requires a jailbroken device or patched build.
  • Bypass techniques break with app-shield vendor updates.

> Adapted from zhaoxuya520/reverse-skill (MIT).

想直接用这个技能?

本站把开放许可(MIT / Apache 等)的技能按仓库打包整理到网盘,点一下转存到你自己的网盘,不用一个个从 GitHub 拉。许可未声明的技能只给原始仓库链接,不打包。

同名技能的其他版本

有 3 个不同仓库或目录里都有叫 mobile-reverse 的技能。它们内容并不相同,别混用: