Sorry to hear you're still having trouble!
What browser are you using? What I would do at this point would be to go into my browser settings and disable all plugins/add-ons (even the ones you think you can trust) to see if that has any effect. If it does, then re-enable all plugins/add-ons and disable them again one-by-one until you can pinpoint which one is causing the links to appear. That will be your culprit, and hopefully you can then remove/uninstall it manually.
Sometimes a "legitimate" add-on or plugin for your browser will sneakily start adding these links under the radar so that they don't trigger anti-virus programs right away.