Java字节码反反转练习(java逆向)
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Java Bytecode Anti-Reversing Exercise Description of the Exercise:
Use Java bytecode anti-reversing tools such as ProGuard, SandMark, and
CafeBabe on the Java version of the Password Vault application to
apply the anti-reversing techniques Eliminating Symbolic Information
and Obfuscating the Program with the goal of making it more difficult
to disable the trial limitation. Instead of attempting to implement a
custom control flow obfuscation to inhibit static and dynamic analysis
as was done in the solution to the Wintel Machine Code Anti-Reversing
Exercise, apply one or more of the control flow obfuscations available
in SandMark and observe its impact by decompiling the obfuscated
bytecode using Jad. Show that the solution to the Java Bytecode
Reversing and Patching Exercise can no longer be carried out as
demonstrated.Software for the Exercise:
Password Vault Java Windows installer ProGuard (java bytecode
obfuscator) RetroGuard (java bytecode obfuscator) SandMark (java
bytecode obfuscator) CafeBabe (java bytecode editor)
Java字节码反反转练习
活动描述: 使用Java字节码反反转工具,如ProGuard,
SandMark,和CafeBabe在Java版本的密码库应用程序中应用反反转技术消除符号信息和混淆程序,目的是使其更难禁用试用限制。而不是试图实现一个自定义的控制流混淆抑制静态和动态分析在解决Wintel机器码反逆向运动,应用一个或多个控制流陷阱中可用SandMark并观察其影响通过反编译混淆使用Jad字节码。说明Java字节码反转和修补练习的解决方案不能再像演示的那样进行。
练习所需的软件: 密码库Java Windows安装程序 ProGuard (java字节码混淆器) RetroGuard
(java字节码混淆器) SandMark (java字节码混淆器) CafeBabe(java字节码编辑器)
(1)、将PasswordVault.jar加入ProGuard作为输入文件,
(2)、然后你的得在下面添加文件所依赖的jar包,不然运行的时侯会报错:
添加 javax.crypto所需要的jar包:jce.jar
(3)、新建一个输出文件HYH.jar
之后就是一些参数的配置,例如要混淆哪些类和函数:
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