A drive-by download pertains to (1) the unintended download of one or more files, malicious or not, onto the user’s system without their consent or knowledge. It may also describe the download and installation of files bundled with a program that users didn’t sign up for. Users may also be able to download and install programs bundled with programs that they signed up for without knowing they were going to be installed on their system. A drive by download pertain to (2) the download of (3) files, (1), (2), (3), (4), (5), (6), (7), (8)”]
Source: https://gizmodo.com/watch-this-mistletoe-drone-launch-surprise-kiss-attacks-1488646779