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I'm trying to retrieve some personal data from an application that has completely disappeared from Google Play, and its author has answered none of my emails.

(I'm namely trying to retrieve a private key. I make the assumption it is stored in a keystore)

The problem is that I cannot succeed to find the files related to this application. Neither the executable or the files used to store data.

I have done ls -lRa > search.log at the root of an Android Terminal Emulator, so as to have the list of accessible files. And I have done several textual search on the content of the list of files.

Given an application on android, how to know where files used by the application are located ?

So as to retro-engineer or to have some clues about an android application, what could be a good start ?

  • see Where to start? – gnat May 19 '17 at 12:12
  • @gnat I think "what coudl be a good start" is a second question. The main question being, how to locate files used by an android application. And I also explain what I have already done. And also the "Where to start" question is not about Very Large project as in the reference you pointed me at. – Stephane Rolland May 19 '17 at 12:14
  • Android.SE is a better place to ask this question and is also more likely to get you a useful answer. – Blrfl May 19 '17 at 18:44
  • I already did some weeks ago, and got no answers. – Stephane Rolland May 19 '17 at 19:15
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Using ABD, Android Debug Bridge, was a good start. It allows to launch some linux commands in the terminal of a pc.

But I finally found more info in doing a little Android application with Android Studio, in which I call the getFilesDir() function.

The result was:

/data/data/my.package.name

But the content of other applications directory is not readable unless one have root rights.

https://android.stackexchange.com/a/175221/218449

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