Question: How does API hooking work?

API hooking is one of the memory-resident techniques cyber-criminals are increasingly using. The process involves intercepting function calls in order to monitor and/or change the information passing back and forth between them. There are many reasons, both legitimate and malicious, why using this might be desirable.

How do API hooks work?

API hooking is a technique by which we can instrument and modify the behavior and flow of API calls. API hooking can be done using various methods on Windows. Hooking can be used to introspect calls in a Windows application or can be used to capture some information related to the API Calls.

How does function hooking work?

Function hooking is implemented by changing the very first few code instructions of the target function to jump to an injected code. Alternatively on systems using the shared library concept, the interrupt vector table or the import descriptor table can be modified in memory.

What is hook process?

A hook is a point in the system message-handling mechanism where an application can install a subroutine to monitor the message traffic in the system and process certain types of messages before they reach the target window procedure.

How does DLL hooking work?

The hooked function inspects the return address on the stack two frames up to figure out the starting address of the function (call it Func) that called it. The hooked function then calls Func for each encrypted section, instructing it to decrypt each section.

What is hooking API?

API hooking is one of the memory-resident techniques cyber-criminals are increasingly using. The process involves intercepting function calls in order to monitor and/or change the information passing back and forth between them. There are many reasons, both legitimate and malicious, why using this might be desirable.

What are hooks in coding?

In programming, a hook is a place and usually an interface provided in packaged code that allows a programmer to insert customized programming. Typically, hooks are provided for a stated purpose and are documented for the programmer. Some writers use hook to also mean the program that gets inserted.

What is hooking in cyber security?

Code hooking is a very intrusive coding operation where mainly OS function calls are intercepted by a program to alter or augment their behavior. Antivirus programs do this all the time when they discover a piece of malware or when some modified routine is behaving badly.

What does hooking mean in C++?

With hooking I mean the ability to non-intrusively override the behavior of a function. Some examples: Print a log message before and/or after the function body. Wrap the function body in a try catch body.

What is a hook code?

In programming, a hook is a place and usually an interface provided in packaged code that allows a programmer to insert customized programming. For example, a programmer might want to provide code that analyzed how often a particular logic path was taken within a program.

What is the point of DLL injection?

In computer programming, DLL injection is a technique used for running code within the address space of another process by forcing it to load a dynamic-link library. DLL injection is often used by external programs to influence the behavior of another program in a way its authors did not anticipate or intend.

Is DLL injection illegal?

A DLL injection is where code is forced to run in place of other code. This injected code is usually code written by a third-party developer, designed to perform some malicious function. Most, if not all, of the uses for DLL injections are malicious in nature and potentially illegal.

What is Android hooking?

What is android hooking? Hooking is a process of injecting malicious payload into existing running process. To illustrate that, assume we have root detection feature in our application. Now mostly all these application which bypasses root detection, ssl pinning etc.. they hook into running application process.

What is IAT hooking?

Import address table (IAT) hooking is a well documented technique for intercepting calls to imported functions. However, most methods rely on suspicious API functions and leave several easy to identify artifacts.

What does hooking mean slang?

Hooking up generally refers to having sex; however, many others indicated that when they say hooking up they are referring to something less than intercourse. Hooking up is means for experiencing casual sexual encounters, but it is also a means for beginning relationships.

Is DLL injection legal?

That is the right way to use legal DLL injection on current version of Windows - Windows 10. DLL must be signed by a valid certificate. Process manipulation functions such as CreateRemoteThread or code injection techniques such as AtomBombing, can be used to inject a DLL into a program after it has started.

What does injecting a DLL do?

In computer programming, DLL injection is a technique used for running code within the address space of another process by forcing it to load a dynamic-link library. DLL injection is often used by external programs to influence the behavior of another program in a way its authors did not anticipate or intend.

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