material-design-icons/av/svg/design/ic_explicit_48px.svg

<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 48 48">
    <path d="M0 0h48v48H0z" fill="none"/>
    <path d="M38 6H10c-2.21 0-4 1.79-4 4v28c0 2.21 1.79 4 4 4h28c2.21 0 4-1.79 4-4V10c0-2.21-1.79-4-4-4zm-8 12h-8v4h8v4h-8v4h8v4H18V14h12v4z"/>
</svg>