index.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Malware Project</title>

    <script type="text/javascript">
        function fun() {
            if (confirm("You have malware, click here to fix it!")) {
                window.location.href = "Assets/attack.html"
            }
        }


    </script>

</head>

<body>
    <center>
        <h1>
            <br>
            <br>
            <br>
            YOUR INFORMATION HAS BEEN LOGGED <br>
            <br>
            Have a nice day :D
            <br>
            <br>

            <button onclick="fun();">Click to run script</button>

        </h1>
    </center>
</body>

</html>