This reminds me of cleaning the Comet Cursor[1] adware, which did this (and other random and obnoxious effects), off of people&#x27;s PCs back in the early 2000s. IIRC, it was bundled with Real Player and usually accompanied with Gator...<p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Comet_Cursor" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Comet_Cursor</a>