Idea of Upload To FTP Icon
There is a folder, there is an arrow drawn over the folder that starts at the bottom and is placed right in the middle of it pointing upwards. In the upper right corner of the folder there is several beaming diagonal lines that look like WiFi or some wireless signal.
This page contains the Upload To FTP vector icon, as well as variations of this icon in different visual styles, and related icons. All icons are in the flat vector style, however, differ by the line thickness, fill, and corner radius.