I got this pop up from many webistes . I though that it was a pop up ad only but once I found that it appeared evertime a new page was opened, I noticed it might be virus. Googled many methods and follow the post here:
http://guides.uufix.com/how-to-stop-hello-new-user-pop-up/
Uh...it was complicated for me.
Have used these tools, none of them detected this virus:
NOD32 Online Scanner - http://www.eset.com/us/online-scanner-popup
SpyHunter - http://guides.uufix.com/Spyhunter_Download.php
SuperAntiSpyware - http://www.filehippo.com/download_superantispyware
My friend recommended Malwarebytes...Will it help?
:'(Well...I just tired it....it did not detect anything!
Did you try MalwareBytes?