Get the Class name in a class with atribute inside a attribute method

I'm doing a Custom Authorize Attribute.

Want use this Attribute in class and controller level.

This code work on a Method level

public class CustomAuthorizeAttribute : AuthorizeAttribute
{

    public CustomAuthorizeAttribute([CallerMemberName] string callerName = null)
    {
        CallerName = callerName;
    }

    public string CallerName { get; set; }

    protected override bool AuthorizeCore(HttpContextBase httpContext)
    {
        if (httpContext.User.IsInRole("Admin"))
            return true;

        ...
        if (CallerName == something)
        {
            do this
        }
        ...

        return base.AuthorizeCore(httpContext);
    }
}

like that

    [CustomAuthorize()]
    public ActionResult Index()
    {
        return View();
    }

But i want use globally in a controller

[CustomAuthorize()]
public class UsuariosController : Controller
{
    SalusDbContext db = new SalusDbContext();


    // GET: Usuarios
    public ActionResult Index()
    {
        return View();
    }
}

Sorry the bad English.