I have ZoneAlarm Pro Antivirus+Firewall or ZoneAlarm Pro Firewall, do I also need Anti-Ransomware? Updated October 02, 2017 10:33 The first hours and days of a new Ransomware attack are the most critical and most dangerous for your PC and your files. This is known as a Zero-Day attack. ZoneAlarm Anti-Ransomware is specifically designed to protect you from Zero-Day attacks of new Ransomware and can restore any files that have been encrypted by a Ransomware attack. Antivirus alone cannot do this. ZoneAlarm Anti-Ransomware is included with ZoneAlarm Extreme Security. Upgrade your existing license from the Renewal center to ZoneAlarm Extreme Security today here. If you do not wish to upgrade you can purchase a standalone version of ZoneAlarm Anti-Ransomware here.