How to distinguish the app was repackaged or not?
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carl-adler -
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I think the experiment might has some mistake, but in general, it works.
Transcript of How to distinguish the app was repackaged or not?
Sample No. Keystore Code Modified
1 keystore_file_1 Original code
2 keystore_file_2 No
3 keystore_file_2 Yes
3,360,586 – 3,360,376 = 210
3,334,868 – 3,334,658 = 210
The diff result of AndroidManifest.xml (sample1 and sample2).
The diff result of AndroidManifest.xml (sample1 and sample3).
The diff result of apktool.yml (sample1 and sample2).
The diff result of apktool.yml (sample1 and sample3).
Take a look at the smali code (sample1 and sample3).
Take a look at sample1 and sample3.
Take a look at sample1 and sample3.
Take a look at sample1 and sample3 (.apk).
Take a look at sample1 and sample3 (after extract).
Take a look at sample1 and sample3 (.dex file).
Let’s look back to our test sample:
Sample No. Keystore Code Modified
1 keystore_file_1 Original code
2 keystore_file_2 No
3 keystore_file_2 Yes
Let’s look back to our test samples and make some conclusion…
The different stuffs at each phase (based on sample1):
