PUBLIC _spoofer_stub
     
    .code
     
    _spoofer_stub PROC
        pop r11 
        add rsp, 8 
        mov rax, [rsp + 24]
        
        mov r10, [rax] 
        mov [rsp], r10
        
        mov r10, [rax + 8] 
        mov [rax + 8], r11 
     
        mov [rax + 16], rbx 
        lea rbx, fixup
        mov [rax], rbx 
        mov rbx, rax 
        
        jmp r10 
     
    fixup:
        sub rsp, 16
        mov rcx, rbx 
        mov rbx, [rcx + 16] 
        jmp QWORD PTR [rcx + 8] 
    _spoofer_stub ENDP
     
    END