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Intro

What's in an app? • ipa file • Zip file for app distribution Standard directory structure

Info.plist Located under app • Property list (plist) format

App Store encryption • All App Store apps have FairPlay encryption applied

Decrypting App Store binaries • Basic process

Finding secrets • Hidden interfaces Sensitive API keys Passwords Private keys

Dumping class information • Mach-o binaries contain information about Objective-C classes and Swift types • Possible to reconstruct the class

Lack of symbol stripping • Local paths to original source files • Can disclose usernames, project context Usernames could lead to source repos • Help identify libraries/frameworks

Lack of symbol stripping • Local paths to original source files Can disclose usernames, project context Usernames could lead to source repos • Help identify libraries/frameworks

Other file types • NSKeyedArchiver

Description:

Explore the fundamentals of iOS application hacking in this introductory video. Delve into the structure of IPA files, examine the components of the Mach-O binary format, and learn simple techniques to assess an application's functionality. Gain insights into app package contents, including the Info.plist file, App Store encryption, and methods for decrypting binaries. Discover how to uncover hidden interfaces, sensitive API keys, passwords, and private keys within iOS apps. Learn to extract class information from Mach-O binaries and understand the implications of insufficient symbol stripping. Explore additional file types like NSKeyedArchiver and their significance in iOS app analysis. Perfect for aspiring ethical hackers and security professionals looking to enhance their iOS application security knowledge.

iOS Application Hacking - Understanding IPA Structure and Mach-O Binaries

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#Programming #Mobile Development #iOS Development #iOS Security #Information Security (InfoSec) #Reverse Engineering