The same thing (except without the happy ending) happened to me. Hidden messages where there definitely couldn’t be any, reversing Java code and its native libraries, a secret VM, a Google interview — all of that is below.

In the end I got an app that emulated the entire DroidGuard process: makes a request to the anti-abuse service, downloads the .apk, unpacks it, parses the native library, extracts the required constants, picks out the mapping of VM commands and interprets the byte code. I compiled it all and sent it off to Google.

The answer didn’t take long. An email from a member of the DroidGuard team simply read: “Why are you even doing this?”

source: L