Security Updates give the most recent protection content for Norton Internet Security, which protect networked critical systems and remote and mobile users from unwanted network intrusions and hackers, as well as from viruses, Trojans, and worms.

To download and install the Security Update 640 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 640 is 20120627.001 and its description was last modified on June 27, 2012 7:13:09 PM PDT.

Security Update 640 provides updated coverage for the following vulnerabilities and threats:

• Web Attack: Mass SQL Injection Attack 2:
  An attacker can perform SQL Injection by manipulating the SQL query logic to carry out unauthorized actions on the underlying database.
  
  
• Web Attack: Malicious Executable Download 4:
  Scripts may be downloaded by a browser but be specified as an image, thus evading some types of monitoring software.
  
  
• System Infected: Trojan Downloader Activity 6:
  This signature detects suspicious activities associated with the download of malware which may result in the compromise of the host.
  
  
• Web Attack: Mass Iframe Injection Website 10:
  It is an attack where an iframe which points to a malicious site is injected in large number of clean websites.