Objective-C Calling Conventions for iOS Reverse Engineering
In this video, we learn how to follow Objective-C calling conventions for iOS Reverse Engineering and see how the Objective-C runtime uses message passing to invoke functions.
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Timestamps:
00:00 Intro
00:44 Message Passing
01:23 Example IPA
01:59 blurBottomBgView
02:39 objc_msgSend
04:27 Method Selector Colons
06:30 ID Types
08:10 Method Invocation Madness
09:15 _objc_release() calls
10:19 UIBlurEffect Class
11:43 Source code of Method
12:27 Developer Method Names Trick!
14:30 Recap
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Links Mentioned in Video:
Ghidra:
https://ghidra-sre.org/
objc_msgSend:
https://developer.apple.com/documenta...
LCActionSheet Class:
https://github.com/iTofu/LCActionShee...
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Malware Examined in the video (goontact):
sha256:712e780afe2f0c4ccd0aa110d57c300d669bff4b5912ef9316b644a4ddbb6183
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