Writing a custom Android Decryptor in Java

In this video, we write a custom Android Decryptor using Java! Timestamps: 00:00 Intro 00:37 Getting Sample 01:35 Finding First Run Code 02:30 Dynamic Decryption 03:34 Unpacking 05:11 DexClassLoader 07:24 Strings 09:57 What The Dex? 13:09 Methods 14:25 Dead Code 15:50 Xrefs 18:36 APK File Structure 22:10 Manually Passing Bytes 24:23 Static Methods 27:23 Decoded DEX 28:41 Recap --- Useful Links: DexClassLoader definition: https://developer.android.com/referen... --- Malware Used in video: sha256:387341d7438c649bf2345b751a9b5ed445651dfae1e1966e08977c0a4b129207 Link: Password: malware123 --- laurieWIRED Twitter:   / lauriewired   laurieWIRED Website: http://lauriewired.com laurieWIRED HN: https://news.ycombinator.com/user?id=... laurieWIRED Reddit:   / lauriewired