A simple APK, reverse engineer the logic, recreate the flag, and submit!
Check-it-out: Link
Well, that was fun !
Hello camus_,
Java (the language android apps are built in) has the near unique property of being reversible to almost the exact code it was built from. As such a good place to begin on challenges like this one are to decompile the app into a human readable form. I prefer Jadx-gui on a Kali linux install but there are also some online decompilers like this one http://www.javadecompilers.com/apk
Thanks
My first RE with apk file! I don't think this could've been done much better for an intro
2 months ago
i solved this!