[Holocaust]

Hello i've asked for help before but now i need help on how to drop a dll file that it gets from a web server or smth in a temp folder and after the program closes they get deleted!

Thanks in advance

// Holocaust 🤝

[Odus]

Perform your cleanup in an OnClosing/ProcessExit event. Only problem is this won't fire if the process is killed or suspended manually.

[Holocaust]

Perform your cleanup in an OnClosing/ProcessExit event. Only problem is this won't fire if the process is killed or suspended manually.

okok but the program is going to close when the dll gets injected!

do you have any idea of how i may drop it in a temp folder?

// Holocaust 🤝

[Hawk HF]

Perform your cleanup in an OnClosing/ProcessExit event. Only problem is this won't fire if the process is killed or suspended manually.

Yep. So check to see if the file exists when the program is run again.

[BahNahNah]

Perform your cleanup in an OnClosing/ProcessExit event. Only problem is this won't fire if the process is killed or suspended manually.

WaitForExit would probably be better because it just waits until the process is terminated.

Code

string dumpPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Temp", Guid.NewGuid().ToString("N") + ".exe");
//Drop to dumpPath
Process p = Process.Start(dumpPath);
p.WaitForExit();
File.Delete(dumpPath);

[Odus]

WaitForExit would probably be better because it just waits until the process is terminated.

If the child process is terminated then yes, but wasn't OP wanting to delete when the parent process ends?

[Holocaust]

If the child process is terminated then yes, but wasn't OP wanting to delete when the parent process ends?

i want it to put my dll file in a temp folder and inject it and after injection it will close and the dll will get deleted 😖

[DudeyDance]

If a process has loaded a .dll with LoadLibrary you won't be able to remove that .dll from the file system because it is in use, if that's what you're asking.
You can delete the injector, sure, but you won't be able to remove the dll.