An analysis by researcher @cryptax explores a new Android packer used by the BianLian ransomware group, dubbed "Bad Zip" for its use of malformed ZIP structures to impede static analysis. The technique obscures the malicious APK payload within disguised assets, requiring custom scripts to unpack and reveal the code, which is designed to thwart debuggers. Read the full article by @cryptax at Bad Zip and new Packer for Android/BianLian .