Virus Definitions & Security Updates

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File-Based Protection (Traditional Antivirus)

File-Based Protection
Traditional signature and heuristic file scanning engines form the backbone of Symantec’s security solutions; these engines use dozens of techniques to scan files for both known as well as unknown threats.
Definitions Created: 5/23/2016
Definitions Released: 5/23/2016
Extended Version: 5/2/2016 rev. 1
Definitions Version: 180502a
Sequence Number: 177028
Details: Release History
Download: Definitions  

Network-Based Protection (IPS)

Network-Based Protection
Technologies designed to block attacks just as they transition from the network cable or wireless network to the computer, before they have a chance to establish residency in a physical file on a user’s computer. Also called Network Threat Protection.
Extended Version: 5/19/2016 rev. 1
Download: Content is downloaded by your product via LiveUpdate.

Behavior-Based Protection

Behavior-Based Protection
Behavioral-based protection technology observes actively running threats on your computer and can terminate running programs if they exhibit malicious behaviors; this technology provides proactive protection from entirely new, previously unseen attacks. Also called Proactive Threat Protection.
Tamper Protection
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