Detect hover/mouseover/mouseenter while dragging an element

How to detect hover/mouseover/mouseenter while dragging an element? I want to have green box after hovering it with the "drag" element. Is there any solution for that?

Note: I know that I could use jQuery UI for it but I want to do it by myself.

    $("box").mouseover(function() {
  $(this).addClass("green");
  var box = $(this).attr("id");
  $("#result").html(box);
});

$("box").mouseleave(function() {
  $(this).removeClass("green");
});

$("drag").bind({
  mousedown: function() {
    $(this).addClass("absolute");
  },
  mouseup: function() {
    $(this).removeClass("absolute");
  },
  mousemove: function(e) {
    $(this).css({
      left: e.pageX - (50 / 2),
      top: e.pageY - (50 / 2)
    });
  }
});

$("body").mousemove(function(event) {
  $("#log").text("pageX: " + event.pageX + ", pageY: " + event.pageY);
});

https://jsfiddle.net/38zecoL1/1/

Thank you for any help.