[TheSnaKe]

I found on ****** good ways to remove it, just search for "tradeadexchange phone"

Or try this:
(Am not sure about this.)
(For iPad)
Double tap the Home button, then swipe upwards on the Safari preview.
Go to Settings - Safari - Clear History.
Restart Safari.

I guess the best way is to take a back up of your important files and do a factory reset.
Or download Malwarebytes and it should detect the virus and remove it.