bagbak

Yet another frida based App decryptor. Requires jailbroken iOS device and frida.re

Tested on iOS 15 (Dopamine) and iOS 16 (palera1n).

The name of this project doesn't have any meaning. I was just listening to that song while typing.

Deprecation

This decryption approach is no longer recommended. It requires running the target app, which is limited by the target SDK, RASP, etc. The mremap_encrypted approach does not require running the app at all.

Alternatives based on mremap_encrypted:

• UnFairPlay (with some tweak, it also works on jailbroken iOS)
• unfaird
• macOSAppstoreDecrypter

Prerequisites

Note: bagbak@5 requires frida@17. If your frida-server is v16, use npm install -g bagbak@4 instead.

On device

• frida.re

On desktop

• node.js.
• npm install -g bagbak

Usage

bagbak [bundle id or name]

Options:
  -l, --list                list apps
  -j, --json                output as json (only works with --list)
  -U, --usb                 connect to USB device (default)
  -R, --remote              connect to remote frida-server
  -D, --device <uuid>       connect to device with the given ID
  -H, --host <host>         connect to remote frida-server on HOST
  -d, --debug               enable debug output
  -o, --output <output>     ipa filename or directory to dump to
  --remove-keys <keys>      Info.plist keys to remove (comma-separated)
  -h, --help                display help for command

Dump modes (second argument):

• all (default) — full IPA with all binaries decrypted
• main (alias: app) — decrypt main app binary only
• extensions (aliases: ext, exts) — decrypt extension binaries only
• binaries (aliases: bin, executables) — decrypt all binaries, output as zip

Environments variables:

• DEBUG=1 enable debug output for troubleshooting

Example:

• bagbak -l to list all apps
• bagbak com.google.chrome.ios to dump app to com.google.chrome.ios-[version].ipa
• bagbak com.google.chrome.ios main to dump only the main binary
• bagbak --remove-keys UISupportedDevices com.google.chrome.ios to remove device restrictions from Info.plist