Comments by KairuByte (Top 19 by date)

I have tried running code in Run(), and it throws and exception that the only thing that can be run is a hook maker.

Turns out it was CreateFile, and I just want hooking the process soon enough. Which in turn means I need to hook some sort of system process or create a driver.

Already am, lol. That's a part of the DLL injection I am doing.

The question has basically been answered, I need to sit and try every possible method till I find the correct one.

Bottom line, I have a lot of trial and error ahead.

o.0 I didn't tag it as C#, looks like someone else decided it should have been. Removing that! No, I assume the original was written in C or C++, though I can't be sure.

It is very possible to override a method in an unmanaged process, as long as it is loaded from something familiar like kernel32.dll. It requires you to inject a dll into the process and some guesswork till it's done, but it works.

It is a video game that is written to only be opened once on a computer. Which makes sense for most users because normally the game is written to multiple times as new data (textures, map points, quest text, etc.) are transmitted to the game, and it's gigantic .dat file is updated. However when you make sure that all the data is downloaded beforehand (There is a command line argument), it is fairly safe to unlock the file for multiple clients.

It has been done before without issue, though the original author of that DLL has since lost interest in the game and cannot be contacted.

I'm not, this is an external process I am trying to hook to manipulate the file stream into a shared state instead of explicitly locking the file. I have no control over what methods have been used.

A dump of dependencies can be found here: http://pastebin.com/CCkpWuq4

Though the list of initially loaded Libraries is:
wsock32.dll
kernel32.dll
user32.dll
shell32.dll
comctl32.dll
ole32.dll
oleaut.dll
version.dll
gdi32.dll
advapi32.dll
winmm.dll
msacm32.dll

I'll keep looking, though I suppose there are at least a few methods that could open a file that I wouldn't think about....

Hah,
There are unfortunately many libraries to choose from, and I have tried overriding all methods that I can think of! I won't be able to post all the libraries, but the ones I can remember are kernel32.dll, user32.dll and shell32.dll. There are no non windows default (at latest update, with .Net 4 installed) DLL's.

That works quite well! Now I just need to figure out a way to inject into a process before it starts, without needing to start the process from my project... Maybe hooking explorers process start? Anyway, thanks!

Checking it out now, first chance I have had. It does seem to actually compile, which the previous version I had seen did not. Looks promising!

That one may work.... It seems to be a slightly different version of something I looked at earlier today. I'll test it out and get back to you! ^_^

What do you intend to do? From the sounds of it your not sure what you need or want... Are you making a clipboard monitor? A clipboard alternative?

If you want to use clipboard you could just copy the text using ctrl + c (or your mouse button), and then have your program monitor the clipboard and do what you need to do. If you don't want to use the clipboard you will have to get a little more creative.

So you are attempting to imitate a copy the way that ctrl + c does, but circumvent the clipboard and load the text selection directly into your textbox?

While that is what the function name suggests, that is not the case. CreateFile either creates the file (or I/O device) if it does not exist, or opens the file (or I/O device) if it is already present.

In this case the file is most definitely always present, though I suppose I could throw in a check beforehand just to make sure.

Here is Microsoft's documentation on CreateFile: msdn.microsoft.com/en-us/library/windows/desktop/aa363858(v=vs.85).aspx