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BlackDex/README.md

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# BlackDex
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**[English Version](README_EN.md)**
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![](https://img.shields.io/badge/language-java-brightgreen.svg)
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BlackDex是一个运行在Android手机上的脱壳工具,支持5.0~12,无需依赖任何环境任何手机都可以使用,包括模拟器。只需几秒,即可对已安装包括未安装的APK进行脱壳。
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## 项目声明
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### 本项目并不针对任何加固,在遇到检测环境等均不处理,仅供安全领域分析用途。项目免费开源仅供学习用途、请勿用于非法用途。否则后果自负!
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## 脱壳说明
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本项目针对一(落地加载)、二(内存加载)、三(指令抽取)代壳,摆脱对以往脱壳环境的困扰,几乎支持5.0以上的任何系统。并且拥有 **快速**、**方便**、**成功率高** 的优点。一般只需要几秒钟即可完成对已安装包括未安装应用脱壳。**未安装应用**脱壳时间主要花费在复制文件IO消耗上,由应用大小决定速度。已安装应用一般在数秒内即可完成脱壳。
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### 脱壳文件说明
- hook_xxxx.dex **hook系统api脱壳的dex,深度脱壳不修复**
- cookie_xxxx.dex **利用dexFile cookie脱壳的dex,深度脱壳时会修复此dex**
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## 脱壳原理
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通过DexFile cookie进行脱壳,理论兼容art开始的所有版本。可能少数因设备而异,绝大部分是支持的。资源有限无法大量测试,遇到问题请提issues.
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## 深度脱壳
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深度脱壳模式下会自主修复被抽取的方法指令,将指向其他内存块的指令回填至DEX内,解决nop问题,但是不会确保一定会有用,例如:指令需要主动调用才解密等则无法回填或者说是无效回填。深度脱壳并不包含任何解密、主动调用等操作。本功能仍然在测试阶段,**可能会出现以下情况,请悉知,愿世上再无nop。**
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1. 脱壳时间会大幅度上升,预计几分钟都十几分钟不等
2. 脱壳期间有可能会出现应用闪退(遇到反检测等)
3. 会增加脱壳失败几率
4. 不一定能够100%还原
#### 部分抽取壳脱壳前后对比
![xx](nop_diff.jpg)
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## 环境要求
- 一台普通手机
- ~~Xposed~~
- ~~Frida~~
- ~~Magisk~~
- ~~Root~~
- ~~定制系统~~
## 架构特别说明
本项目区分32位与64位,目前是2个不同的app,如在Demo已安装列表内无法找到需要开启的app说明不支持,请使用另一个版本。
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BlackDex下载:https://github.com/CodingGay/BlackDex/releases
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## 演示
![xx](demonstration.gif)
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## 感谢
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- [VirtualApp](https://github.com/asLody/VirtualApp)
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- [VirtualAPK](https://github.com/didi/VirtualAPK)
- [FreeReflection](https://github.com/tiann/FreeReflection)
- [Dreamland](https://github.com/canyie/Dreamland)
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- [lkchandexfile](https://github.com/lkchan724/lkchandexfile)
- [xhook](https://github.com/iqiyi/xHook)
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- [Dobby](https://github.com/jmpews/Dobby)
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### License
> ```
> Copyright 2021 Milk
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>
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> Licensed under the Apache License, Version 2.0 (the "License");
> you may not use this file except in compliance with the License.
> You may obtain a copy of the License at
>
> http://www.apache.org/licenses/LICENSE-2.0
>
> Unless required by applicable law or agreed to in writing, software
> distributed under the License is distributed on an "AS IS" BASIS,
> WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
> See the License for the specific language governing permissions and
> limitations under the License.
> ```