After doing a google search and clicking on a link to go to a website I have used in the past, I just got attacked by a pop up that said my android tablet (and it even mentioned my model number in the pop up) was infected by viruses, and then told me to go to the Google Play store and download a certain app, which I did not do because I know better. I also did not click on the "OK" button in the pop up. The pop up ad did not move around the screen, it was just stationary, and it did not have anywhere to click to get rid of it (except for the OK button), and it locked the web browser (Chrome) screen and greyed it out, so that I could not go to a different tab or do anything to get rid of it. My other web browser app (Firefox) still worked fine.
I ran several android versions of popular anti virus apps like Malware Bytes, AVG, etc., and none of them detected anything wrong.
I went to the settings menu of my android tablet and went to the apps section, found the Chrome app and cleared the cache. That did absolutely nothing. I forced it to stop. That did nothing. I then clicked "disable" and that did the trick. It also erased all my tabs, bookmarks, saved passwords, etc. in the Chrome app. And I had to go to the Google Playstore to Enable the Chrome app. The Chrome app now works again, but like I said, all of my bookmarks, passwords, etc., have all been deleted.
Now please don't click on this because it probably has viruses or something, but I wrote down the information that appeared in the pop up box and this is what it said... "us.atopd.top"
I have since ran several more virus scans and have found nothing. I also went through each app left and cleared any cache and cleared hisories, closed all tabs, etc. I cleaned out my downloads folder and used CCleaner to clean up junk files.
So, in summary, if this happens to you, go into your android tablets settings menu, go to apps, find the Chrome app, and click on "disable" and follow the prompts to get rid of these pop ups.