google / android-classyshark

Android and Java bytecode viewer

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Can't Examine Brave Browser App

busnbike opened this issue · comments

Classyshark crashes when I try to see if Brave Browser uses trackers.

I looked into the classy source code and tested the problematic APK. I found at least two issues:

  • The binary AndroidManifest is missing a doc end tag (0x0101); the last tag is </manifest>. Fortunately, this is a straightforward fix, and it might be beneficial to consider using a non-custom XML parser.
  • Classy uses a really old dex parsing library, org.ow2.asmdex. It's dead; there have been no changes in the last 10 years. The library supports the dex file format v35, the most recent one being v39. You can expect more issues related to this. I didn't go much deeper with my analysis.

Sorry for kind of necro-posting, but I believe it may be useful for someone.