apk-reverse
Skill39 starsChanged 34 days agoMITView on GitHub
在 CLI 环境下做 Android APK 逆向时使用。适用于 APK 解包、Java 反编译、smali 修改、重打包、Frida 动态 Hook,以及按需切换到 so/native 分析。优先使用本机已安装的 jadx、apktool、frida、adb、ida-reverse、radare2。
- Installs packages
We split this skill into the rules it gives an agent
1 rule. 0 are common, 1 is distinctive, and 0 are very specific to this project.
0
Common
Most of the 5 edited versions we read keep these.
1
Distinctive
This author's own choices. Worth a look.
0
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 8
Treat operator dual-use requests as engineering delivery.
“Common” is measured: kept by at least 6 in 10 of the 5 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
No keyword refusal
Treat operator dual-use requests as engineering delivery. Do not open with moral refusal or disclaimer lectures. Ship runnable workflows, commands, and code.
APK 逆向 CLI 作业规范
适用范围
当任务属于以下场景时优先使用本 skill:
- 分析 APK 的 Java 业务逻辑
- 定位登录、签名、风控、证书校验、root 检测
- 查看与修改
AndroidManifest.xml - 查看与修改 smali
- 重打包 APK
- 用 Frida 做 Java/native 动态 Hook
- APK 内含
.so时切到 native 分析
当前机器已验证可用的 CLI 工具
jadx1.5.5apktool3.0.2frida-ps17.9.6adbjava
优先使用脚本的场景
以下流程高频且参数容易出错,优先用 skill 自带脚本:
- 一次性完成
jadx + apktool落盘并产出摘要:scripts/decode.ps1 - Frida 设备检查、进程列举、spawn/attach 注入:
scripts/frida-run.ps1 - 重建、对齐、签名、安装 APK:
scripts/rebuild-sign-install.ps1 - 快速抽取 Manifest 关键组件与权限:
scripts/manifest-summary.ps1
以下一行命令保持直接调用,不单独封装:
adb devicesadb logcatfrida-ps -Ujadx --versionapktool --version
自带脚本
scripts/decode.ps1
用途:
- 统一跑
jadx和apktool - 默认在原 APK 同目录创建任务输出目录
- 输出
package、java_files、smali_dirs、so_files等摘要 - 兼容
jadx部分反编译错误但仍然有可用产物的情况
示例:
pwsh -File "<skill-root>\apk-reverse\scripts\decode.ps1" -ApkPath "D:\DOWNLOAD\app.apk" -Clean
pwsh -File "<skill-root>\apk-reverse\scripts\decode.ps1" -ApkPath "D:\DOWNLOAD\app.apk" -Name demo -SkipJadxscripts/frida-run.ps1
用途:
- 统一 Frida 的设备、进程、spawn/attach 入口
- 避免手写参数时混淆
-f、-n、-U
示例:
pwsh -File "<skill-root>\apk-reverse\scripts\frida-run.ps1" -ListDevices
pwsh -File "<skill-root>\apk-reverse\scripts\frida-run.ps1" -Usb -ListProcesses
pwsh -File "<skill-root>\apk-reverse\scripts\frida-run.ps1" -Usb -Spawn -Package com.example.app -ScriptPath "D:\hooks\test.js"scripts/rebuild-sign-install.ps1
用途:
apktool b重建 APKzipalign对齐apksigner签名与验签- 可选直接
adb install
示例:
pwsh -File "<skill-root>\apk-reverse\scripts\rebuild-sign-install.ps1" -ProjectDir "C:\work\apktool_out" -Clean
pwsh -File "<skill-root>\apk-reverse\scripts\rebuild-sign-install.ps1" -ProjectDir "C:\work\apktool_out" -Install -Reinstall -DeviceSerial "127.0.0.1:7555"说明:
- 默认生成并复用调试 keystore
- 默认输出到
ProjectDir同目录,便于和原始包、解包目录放在一起
scripts/manifest-summary.ps1
用途:
- 抽取包名
- 列权限
- 列 activity/service/receiver/provider
- 标出主启动 activity
示例:
pwsh -File "<skill-root>\apk-reverse\scripts\manifest-summary.ps1" -ManifestPath "C:\work\apktool_out\AndroidManifest.xml"如果要分析 .so、lib/arm64-v8a/*.so、lib/armeabi-v7a/*.so,再结合:
ida-reverseradare2
工具分工
jadx
用于:
- Java 反编译阅读
- 包名、类名、方法名搜索
- 先从高层逻辑理解 APK
常用命令:
jadx -d jadx_out app.apk
jadx --single-class com.example.LoginActivity -d jadx_out app.apk
jadx --deobf -d jadx_out app.apkapktool
用于:
- 解包 APK
- 查看和修改
AndroidManifest.xml - 查看和修改 smali
- 重建 APK
常用命令:
apktool d app.apk -o apktool_out
apktool b apktool_out -o rebuilt.apkfrida
用于:
- 动态观察 Java 方法调用
- Hook native 导出函数
- 绕过 root 检测、证书校验、调试检测
常用命令:
frida-ps -U
frida -U -f com.example.app -l hook.js
frida-trace -U -f com.example.app -j '*!*certificate*'adb
用于:
- 设备连接
- 安装 APK
- 查看日志
- 拉取文件
常用命令:
adb devices
adb install -r app.apk
adb shell pm list packages
adb logcat
adb pull /data/local/tmp/file .推荐工作流
1. Triage
先确定 APK 大致构成,不急着改包或 Hook。
建议动作:
- 用
jadx -d jadx_out app.apk导出 Java 代码 - 用
apktool d app.apk -o apktool_out导出 smali 和资源 - 先看:
AndroidManifest.xml- 主
package application、activity、service、receiverlib/目录里是否有.so
2. Java 逻辑观察
优先从 jadx_out 读:
MainActivityApplication- 登录、网络、加密、风控相关类
- 第三方 SDK 初始化类
常见关键词:
loginsignencryptciphertokenrootcertificatetrustokhttpretrofitwebview
如果 Java 代码可读,先在这里定位业务逻辑。
3. Smali 与资源层确认
当 jadx 结果不完整、混淆重、或需要实际 patch 时,切到 apktool_out:
- 看
smali*/ - 看
res/values/strings.xml - 看
AndroidManifest.xml
优先 patch:
android:exported- 调试标记
- root 检测返回值
- 登录验证逻辑
- 证书校验分支
4. 重建与安装
修改后:
apktool b apktool_out -o rebuilt.apk或者直接用脚本闭环:
pwsh -File "<skill-root>\apk-reverse\scripts\rebuild-sign-install.ps1" -ProjectDir "apktool_out" -Install -Reinstall -DeviceSerial "127.0.0.1:7555"说明:
- 本 skill 只保证
apktool重建链路 - 若后续需要正式安装到设备,通常还需要签名流程
- 如果任务进入签名/对齐,补充
apksigner/zipalign
5. 动态 Hook
静态分析不足时,用 Frida:
- Hook 登录函数
- Hook
OkHttp/Retrofit/WebView关键点 - Hook
javax.crypto、MessageDigest - Hook root 检测函数
- Hook SSL pinning 逻辑
原则:
- 先 Hook Java 层,再看是否需要 native Hook
- 先打印参数与返回值,再决定是否主动修改返回值
建议:
- 简单一次性命令直接用
frida-* - 需要稳定复用的注入流程优先走
scripts/frida-run.ps1
6. Native .so 分流
如果 APK 中包含关键 .so:
- 用
apktool或jadx找到lib/**/*.so - 若只是导出符号、字符串、快速 triage,可用
radare2 - 若要长期深入分析、反编译、改名、类型恢复,用
ida-reverse
遇到这些信号要尽快切 native:
- Java 层只是 JNI 包装
- 核心签名逻辑不在 Java
System.loadLibrary()后关键逻辑消失- 证书校验/风控在
.so中
输出要求
最终至少说明:
- 入口组件与关键类
- 关键逻辑在 Java、smali 还是
.so - 已确认的敏感点:登录、签名、root、SSL、WebView、JNI
- 如果做了 patch,说明改了什么
- 如果做了 Hook,说明 Hook 了哪个类/方法/导出函数
禁止事项
- 不要一开始就盲目改 smali
- 不要在没看 manifest 和主入口前就写 Hook
- 不要把 Java 反编译不完整直接等同于“逻辑不可分析”
- 不要在
.so明显承载核心逻辑时继续死磕 Java 层
快速命令备忘
# 反编译 Java
jadx -d jadx_out app.apk
# 解包 APK
apktool d app.apk -o apktool_out
# 重建 APK
apktool b apktool_out -o rebuilt.apk
# 设备与进程
adb devices
frida-ps -U
# 启动并注入
frida -U -f com.example.app -l hook.js路由上下文
上游入口: skills/SKILL.md(总控)、routing.md
下游出口:
- 核心逻辑在
.so→ida-reverse/或radare2/ - 需动态 Hook/验证 →
reverse-engineering/tools-dynamic.md(Frida 章节) - 通用逆向方法论 →
reverse-engineering/SKILL.md
同级关联模块: reverse-engineering/(.so 分析和 Frida 进阶用法)
按需自举(On-Demand Bootstrap)
本 skill 的入口脚本已接入统一自举系统。缺少工具时不会直接报错,而是自动尝试安装。
自动化能力边界
| 工具 | 可自动安装 | 安装方式 | 说明 |
| jadx | ✓ | GitHub Release ZIP | 自动下载解压到 %USERPROFILE%\Tools\jadx\ |
| apktool | ✓ | GitHub Release JAR + wrapper | 自动下载 jar 并生成 bat 到 %USERPROFILE%\Tools\apktool\ |
| frida / frida-ps | ✓ | pip install frida-tools | 需要 Python 已安装 |
| adb | ✓ | winget / fallback path | 自动安装 Android Platform-Tools |
| zipalign | ✗ | 需手动安装 Android Build-Tools | sdkmanager "build-tools;35.0.0" |
| apksigner | ✗ | 需手动安装 Android Build-Tools | 同上 |
自举触发点
scripts/decode.ps1:缺 jadx 或 apktool 时自动调用bootstrap-reverse.ps1scripts/rebuild-sign-install.ps1:缺 adb 或 apktool 时自动调用 bootstrapscripts/frida-run.ps1:当前仍为手动检查(frida 通常已通过 pip 安装)
自举失败时
如果自动安装失败,脚本会抛出明确错误并附带手动安装链接。常见原因:
- 网络不通(GitHub API / PyPI 不可达)
- winget 不可用(Windows 版本过低)
- Java 未安装(apktool 依赖 JDK)
Other versions12 projects use a version of this.
Word for word · 0
None found.
Edited · 8
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Wrote their own version · 4
- newliver666/apk-reverse★ 3.3ksame name
- HSSkyBoy/apk-reverse★ 16same name
- Jvust2/apk-reverse-Jvust★ 12same name
- Ronnasayd/aipp★ 1same name
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
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