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Reverse Engineering

Reverse Engineering. Overview. Overview. Overview. Need for RE. Recovery of lost information providing proper system documentation Assisting with maintenance identification of side effects and anomalies Migration to another hw/sw platform Facilitating software reuse.

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Reverse Engineering

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  1. Reverse Engineering

  2. Overview

  3. Overview

  4. Overview

  5. Need for RE • Recovery of lost information • providing proper system documentation • Assisting with maintenance • identification of side effects and anomalies • Migration to another hw/sw platform • Facilitating software reuse

  6. Example: Java Decompiler • How to recover bytecode from .class file under Unix/Win with JDK? % javap -c <filename> % javap -help (to see the options) • Java Decompilers - Jadclipse • ”ClassCracker” http://www.pcug.org.au/~mayon/ • “DeCafe Pro" from DeCafe, France athttp://decafe.hypermart.net/index.htm

  7. Class cracker JD

  8. Decompile .net • There are two tools that I like to use to decompile • Reflector • www.reflector.net (paid) • ILSpy • http://wiki.sharpdevelop.net/ILSpy.ashx (free)

  9. ILSpy

  10. Reflector

  11. Swf decompiler for flash

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