To answer the question - it's not a virus, just a spammy advertising pop-up trying to grab personal info.
If it keeps coming up when browsing to a certain website then it's likely that website hosting bad adverts. If it appears whenever you launch Chrome, even after you close all the tabs then it's likely your homepage in Chrome got set to it and doing a reset
To reset in Chrome enter chrome://settings/reset in the address bar and follow the instructions there. That should hopefully fix it for you ( and keeps bookmarks, passwords, etc intact)