Malwarebytes didn't find the culprit, but it could be one of my extensions. What makes it annoying is that it doesn't redirect every time. I think what I'll do is just use ebay in incognito for a while and see if the redirect occurs.
My impression is that certain browsers seem to be more susceptible to certain redirect attacks than others -- or else the attacks are targeting certain browsers or OS's at various times. I seem to recall a big redirect problem that primarily affected Safari on iPads, I think. Not sure if it is worth switching browsers just to avoid an ad, though -- many of the most serious redirects made eBay all but unusable for the folks afflicted.
If it is not malware on your computer or device, it may be being delivered through a third-party ad, which might explain why it does not happen every time. Many sites deliver a series of rotating ads, and which ad you receive depends upon the luck of the draw. I would think most ad blockers would prevent that though.
See this thread for some details of past problems, though I think the thread went on long enough to encompass more than one individual type of attack.
https://community.ebay.com/t5/Technical-Issues/EBay-site-redirect-to-virus-scam/td-p/28292480
Anyone notice Chrome has a scanner of sorts burried in its settings? I didn't find it to be of any use, whatsoever. It just sat there with the circular loading icon for 12 or something hours. I just closed chrome when I went to bed. It didn't say, "Oh noes! We're fixing your plumbing!" or anything. Maybe it works for some people?
I did not know about that scanner in the "reset and clean up computer" section of Chrome. I tried just now, and let it run in the background, and eventually it wound up with a "No harmful software found message". Possibly it went quicker for me because i do not use Chrome on this machine very often.
