[RESOLVED] Get loaded modules

[Daniel Elkins]

How can I get a list of loaded modules in my program? Example: DLL files that are loaded in my program?

I want to try and prevent DLL injection in my game, and it's not hard for someone to make a DLL and inject it into my process manually or during runtime.

[Keithuk]

How can I get a list of loaded modules in my program? Example: DLL files that are loaded in my program?

I want to try and prevent DLL injection in my game, and it's not hard for someone to make a DLL and inject it into my process manually or during runtime.

Well Daniel there are two ways to find what dll's an app uses.

1) Open the vbp file with NotePad and look at the top where the References are stored. This will also tell you what ActiveX components are needed for the app.

2) Open each bas and cls Modules and read if there are any non standard API calls. There maybe some API calls at the top on each Form so check the code window for each Form as well.

[Daniel Elkins]

Thanks, Keith, but that's not quite what I mean.

For example, if my program used a function like "BitBlt" from gdi32.dll, then when my program is launched, Windows loads "gdi32.dll" into the process.

I need to know what DLL files are loaded into my program's process at runtime.

Someone can put their own DLL into my process and therefor run code inside of it, and I want to try & prevent that.

Thanks.

[LaVolpe]

With VB6 installation CD, there is a program called PSpy (process spy). It will list the dlls that are currently loaded. I am not sure knowing that information alone will be ideal. Different operating systems may be loading different DLLs into processes. If a user wants WindowBlinds to run, for example, that app may inject itself into every process -- per the pc owner's request. This may be true for other DLLs too.

There are ways to help determine if your application is being subclassed. That could be beneficial. But that won't detect if someone setup a global hook to trap keyboard/mouse events and possible some messaging events. What about overwriting parts of your application's actual memory, hacking?

Maybe search a bit more on anti-cheat tactics?

[some1uk03]

Have a look at this example I found on pscode.