We release our set of code-obfuscation scripts tailored for Android applications. We assume that the original application can be disassembled into Smali.

We currently support:

• Android specific

  • Repackaging
  • Reassembly
  • Re-alignment

• Simple control-flow modifications

  • Junk code insertion
  • Debug symbols stripping
  • Defunct code insertion
  • Unconditional jump insertion

• Advanced control-flow modifications

  • Call indirection
  • Code reordering
  • Reflection
  • Opaque predicate insertion

• Renaming

  • Non-code files and resource renaming
  • Fields and methods renaming
  • Package renaming

• Encryption

  • Resource encryption (asset files)
  • Native code encryption
  • Data encryption (strings)

• Federico Pellegatta (main developer)
• Federico Maggi (advisor, maintainer)