smukx-Rust-for-Malware-Development/dll_injection/hook.dll.rs

/*
    This Program is to make familiar with DLL...
    @5mukx
*/

use std::{ffi::CString, ptr::null_mut};
use winapi::um::winuser::{MessageBoxA, MB_OK};

/*
    #[no_mangle] Short Explain
    - no_mangle is used to interoperate with C code meaning we can call
        these functions directly from C without any naming conflicts.
    - It can also used to keep its original name during the compile time.
*/

use std::{ffi::CString, ptr::null_mut};
use winapi::um::winuser::{MessageBoxA, MB_ICONEXCLAMATION, MB_OK};

#[unsafe(no_mangle)]
pub extern "stdcall" fn msg_frm_vx() {
    let msg = CString::new("Malware resources needs to be free and wide").expect("Failed");
    let cap = CString::new("Message From Vx-Underground").expect("Error cap");
    unsafe {
        MessageBoxA(
            null_mut(),
            msg.as_ptr(),
            cap.as_ptr(),
            MB_OK | MB_ICONEXCLAMATION,
        );
    }
}

#[unsafe(no_mangle)]
pub extern "system" fn msg_frm_smukx() {
    let msg = CString::new("Custom DLL's are always Cool. Bye").expect("Failed");
    let cap = CString::new("Message From SMukx").expect("Error cap");
    unsafe {
        MessageBoxA(
            null_mut(),
            msg.as_ptr(),
            cap.as_ptr(),
            MB_OK | MB_ICONEXCLAMATION,
        );
    }
}