Under the hood, it is all managed by the same simple API for the user,
In either of these scenarios, although Stalker has to work slightly differently
Stalling thrid party codec in freac code#
Input to see if you can get the code to take a particular path. Perhaps you want to compare theĭirection the code takes with different input, or perhaps you want to modify the Thread takes after a given function is called. How it behaves, you want to see which functions or perhaps even code blocks the This scenario, you have found a function of interest and you want to understand The other scenario where you might call Stalker.follow() is perhaps from a Thread stacks can give you a really good overview of what a process is doing. Used a NativeFunction to call: int pthread_getname_np ( pthread_t thread, char * name, size_t len ) Process using the Frida JavaScript API Process.enumerateThreads() and then Or perhaps you walked the threads in your Perhaps it has an interesting name? Thread names can be found ID is likely to be used where you have a thread of interest and are wondering Let’s consider when these calls may be used. Start stalking threadId (or the current thread if omitted) The main API to Stalker from JavaScript is: Stalker. The TypeScript typeįor Gum are well commented and provide a little more detail still. Through its native Gum interface, most users will instead call it via the To start to understand the implementation of Stalker, we must first understand However, it is hoped it will prove to be a very useful head-start. The implementation left for the reader to discover by reading the source Implementation for a line-by-line analysis, there will be some last details of Lastly, while this article will cover the keyĬoncepts of the implementation and will extract some critical parts of the Isn’t there without reason, it is there to minimize the overhead of what is an Starting point to help others understand the technology and Stalker isįiendishly complicated enough without this! To be fair though, this complexity Stalker, it won’t cover back-patching in real detail. Whilst this article will cover a lot of the details of the inner workings of May help future efforts to port Stalker to other hardware architectures. Stalker and explains in more detail exactly how it works. Things to the next level of detail, it dissects the ARM64 implementation of
Stalling thrid party codec in freac android#
Phones and tablets running Android or iOS, as well as the Intel 64 and IA-32Īrchitectures commonly found on desktops and laptops. Stalker currently supports the AArch64 architecture commonly found on mobile
Somewhat architecture specific, although there is much in common between them. Recommend that you read it carefully first. It allows threads to be followed,Ĭapturing every function, every block, even every instruction which is executed.Ī very good overview of the Stalker engine is provided
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