Tag: hopper

• Cracking a Top-Ranked macOS Screensaver: Tracing the Restore-Purchase Flow to the VIP Flag

  2021-12-16

  Cracking a top-ranked macOS screensaver by tracing its StoreKit restore-purchase flow with Hopper and class-dump until the VIP flag finally shows up, with the commands and code included.

• Reversing a Desktop IM Client with Frida - Sending Tampering and Listening to Messages

  2021-02-15

  Reversing a desktop IM client with Frida: class-dump the headers, find the message-send classes, then tamper with outgoing messages and listen in on incoming ones.

• Injecting a theos Tweak to Modify a Game's Avatar Upload and Serve an Animated GIF

  2020-06-13

  Injecting a theos tweak into an iOS game to hijack its avatar upload, swapping the request so the server serves an animated GIF instead of a static image.