Is there a way to hook a managed function in C# like I would a unmanaged function in C++?

Question

In C++ I would get the address of the function and overwrite the first few bytes to a jmp to my function, do some stuff, restore the original bytes, and call the original function.

Can I do something like this in C#?

Answer 1

The technique you're looking for is called AOP - Aspect Oriented Programming. You can find several frameworks for C# if you goggle a little.

Update: You can find plenty of links and info in this question: Built-in AOP in C# - is it on the way?