Update: A member of Microsoft's MSN Engineering Team (RodrigoLode(MSFT)
has responded to acknowledge the malvertising issues associated with MSN portal. They have also requested
***" If anyone is still experiencing this, please reply here."***For more specifics on information requested please refer to the reply from Rodrigo at the following link:
https://answers.microsoft.com/en-us/protect/forum/protect_defender-protect_scanning-windows_10/im-seeing-trojanjsflafisid-detections-and-tech/8fbe8eaf-1af0-4e76-9ab0-57828f631a5f?page=7&messageId=3661a31c-2019-4808-a88b-283919038cc1
In addition to reporting the fake pop-ups themselves I would advise that you take note if there is a significant loss of performance on computer after encountering, in particular, the
fake Adobe Flash Player update. If things seem sluggish you may have been subject to one of the more prevalent malicious activities known as crypto-mining/coin mining.
Invisible resource thieves: The increasing threat of cryptocurrency miners
https://cloudblogs.microsoft.com/microsoftsecure/2018/03/13/invisible-resource-thieves-the-increasing-threat-of-cryptocurrency-miners/
Especially important to report these occurrences or any other odd behaviors after using MSN website.
Moderator Edit: Provided update.
Just reading the “Comey trolls Trump” article on the Edge Start page and this pops up:

This one was easy to handle because it was just the old-fashioned dialog loop based scam:

– but what’s coming next Microsoft?
GreginMich
[Original Title: Surprised again]