Not sure if you saw my reply to the other post so I'll quote below. BTW, the first link you provided shows an older interface, which was confusing. But worked my way thru as best I could and did resolve the issue. Thank You!
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Maurice and @Porthos thank you for the extremely fast replies to my request.
I did manage to find and delete the nasty and it is no longer appearing in my chrome browser! :)
Here's what I did: I went in to Chrome settings, => Privacy & Security => Site Settings => All Sites =>View permissions and data stored across sites
Ctrl + F and entered untsorce.cool, which pulled up 4 instances, AT THE BOTTOM of the page! Then blocked all items for the site. (From there, trying to recall, but I believe I then deleted untsorce.cool.
Ran MB then Hitman (nothing for each) then CCleaner. That was it!
Thank you again to both of you for your magnificent help!