System Notification

Just received a "System Notification", while browsing Safari, from apple-warning.com, which stated "Please Read Important Notification Regarding Your iOS Device". The Notification warned that 3 Viruses has been detected on your iPhone and battery has been infected and damaged. It further asked that if you don't remove this Malware now, it may cause more damage and that how to fix this. There was an option of Download and Install and time was shown as ticking down. Beneath was written Detected by Apple. When I clicked on Download and Install, I found an app of Ad-blocking for protection from advertisement but I didn't install it.

I want to know whether the Notification was really from official Apple Inc? Anyone having experienced it please...