Question

1

Differentiate between apk and jar files

rated 0 times [ 1] [ 0] / answers: 1 / hits: 7922 / 2 Years ago, thu, february 3, 2022, 2:49:56

Is there any way to tell these two files apart? They're both identified as zip files using the command file, so is there a way to tell them apart? (Disregarding extension of course).

NOTE: Trying to perform file analysis, both these files run through different analysis so I have to be able to tell them apart.

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answered 2 Years ago ameatoes · Accepted Answer

Not with official tools, probably not at all.

The DEX files are files converted in a language that the Dalvik machine can understand and execute, not necessarily java, the DEXs are just intermediary files targeting the Dalvik virtual machine, so technically speaking there is also no garanty that this DEX files are from a jar or from the java language.

At building time, when the apk is created, all the code that is not a native library is put in a DEX files. The "jar idea" simply doesn't exist and does not live in an apk file.