Over the last few days I've noticed several distinct Google results that are simply 'Untitled', that redirect to other sites that are definitely spam and possibly malware (I didn't stay long enough to investigate). I've seen other examples of titles such as 'Oh' redirecting to the same spam sites. From the result preview below the title, the results otherwise seem somewhat relevant to the query, but most often end up loading a fake captcha page.
Google deleted a support thread posted 3 days ago about this issue [0]. There are a few comments on a HN thread from yesterday [1] which mention this issue as well. A reddit thread is active on /r/google about this issue [2].
Something seems to have gone wrong at Google to allow so many fake results to pollute so many different search queries. There have been many discussions on HN lately about how the quality of Google's search results have gone down, but until now I've never seen them become a massive influx of possibly malicious spam.
[0] https://support.google.com/chrome/thread/147896848/i-have-untitled-google-search-results-on-almost-everytging-and-it-redirects-me-to-malware-website?hl=en-GB
[1] https://news.ycombinator.com/item?id=30086059
[2] https://www.reddit.com/r/google/comments/seio29/is_anyone_else_getting_these_untitled_google/
The commonality is that they seem to keyword stuff obscure keywords and even phrases (possibly by randomly brute forcing or re-combining text fragments into synthesized sentences.) and they all redirect one or more times, prevent the back button from working and land on some kind of suspicious page that is almost certainly hosting some kind of malware. The only way out is to close the tab and start over. I'd imagine things would be much worse without ublock installed.