macOS Memory

[stece]

Dear all

Could somebody inform me, please, how Mac OS X memory is organised?
What address spaces are there ? And if possible please, inform me where I can get values of these buffers from ?

Thank you in advance.

 

[sammich]

Sounds fishy to me.

I think Apple implemented something like address space layout randomisation...anyway here's the link to it
http://en.wikipedia.org/wiki/Address_space_layout_randomization

 

[stece]

Sounds fishy to me.

I think Apple implemented something like address space layout randomisation...anyway here's the link to it
http://en.wikipedia.org/wiki/Address_space_layout_randomization

I'd like to cipher my code. I don't know how to implement the deciphered code into Mac. I think I should inject it into shell, but how to do it not knowing the shell address in Mac OS X ?

Please correct me what is wrong in my thinking.

 

[kainjow]

What are you trying to do? If you're trying to override system functions, then mach_inject might be of use. If you're trying to override a feature in a Cocoa app you can use SIMBL plugins.

 

[stece]

Thank you I must do some study on overriding a function. I want to play a litlle bit on cryptography.