Android Reverse Engineering using apktool

This video will teach you how to decode android application into source files including Java source files. And build a new apk with changes to the resource files and it will brief about signing the modified apk package.\r
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Source links:\r
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1. Install apktool in Linux:\r
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2. Convert dalvik code to jar file using the below dex2jar utility.\r
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3. decode jar file into java files using jd-gui\r