How to Inject DLL safely

[demonguy]

    Public Sub InjectAllWows()
        Dim MyWows = System.Diagnostics.Process.GetProcessesByName("Wow")


        For i = 0 To MyWows.Length - 1

            Dim MyProcess = MyWows(i)

            MyProcess.WaitForInputIdle()
            Threading.Thread.Sleep(3000)

            Try
                Dim MyModules = MyProcess.Modules

                Dim Found = False
                For j = 0 To MyModules.Count - 1
                    If MyModules(j).ModuleName.ToLower().IndexOf("chack.dll") <> -1 Then
                        Found = True
                        Exit For
                    End If
                Next

                If Not Found Then
                    InjectProcess(MyProcess.Id, Application.StartupPath() & "\Hacks\CHack.dll")
                End If

            Catch e As Exception

            End Try
        Next
    End Sub

I inject my DLL through codes above... And my DLL just load some extra lua files into WOW... But Unfortunately , Even inject it after "WaitForInputIdle" and sleep for 3 seconds, Wow still have about 20% possibility to crash or become not responding....
So is there anything i can do to deal with it?

[DarkLinux]

1. The dll is probably making it crash, so its your code and we cant really help you with that unless you post it.

2. This looks like Autoit... gtfo or use something that you know how it works... Like what does InjectProcess really do.. Also is your dll coded Autoit?

[Flowerew]

1. The dll is probably making it crash, so its your code and we cant really help you with that unless you post it.

2. This looks like Autoit... gtfo or use something that you know how it works... Like what does InjectProcess really do.. Also is your dll coded Autoit?

looks like vb to me ^^

[demonguy]

Yes, it's VB... And i write the codes above by myself, as well as my DLL
I'm certain that the crash is caused by my timing to load lua files
As for the reason why i post my injector codes is that i want to emphasize the fact that i inject my DLL after Sleeping 3 seconds

And i guess the problem is that i inject the DLL and execute buffers in lua_State while the main thread of WOW is also executing some codes, and they conflicts, but i'm not sure.

Now, i just suspend all other threads in WOW when i load these lua files, which works fine currently. But i don't know whether it will cause some other problems..
So i just post this thread to see whether there is someone else who loads lua files immediately after WOW is started.

[wiirgi]

What language is the DLL made in? Because if its not written in unmanaged(.NET is managed) code I dont' think it will work properly.

[hb123220]

it's VB.NET. anyone knows how to inject managed Language?