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Virus Definitions & Security Updates

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File-Based Protection (Traditional Antivirus)

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: 5/21/2013
Definitions Released: 5/21/2013
Extended Version: 5/21/2013 rev. 2
Definitions Version: 150521b
Sequence Number: 144373
Number of Signatures: 22,940,456
Details: Release History
Download: Definitions  

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THREATCON

Level 2: Elevated Level 2: Elevated

Threat Intelligence

threatintel: Why #Email is a Key to Your Castle http://t.co/fWhN07kH5M #2factor
20:30 PM May.21
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threatintel: #Symantec protection and information on Operation Hangover http://t.co/Zo0J7PCDzF #Cyberespionage
13:50 PM May.20
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threatintel: New Targeted Attack Uses Old Vulnerabilities #SafeNet http://t.co/SNtakL2Yqj #APT
11:50 AM May.17
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Response Blogs

12:02 PM 2013-05-20
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4:30 AM 2013-05-17
Visit the Security Response Blogs on Symantec Connect
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