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 474 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 474 is 20111013.030 and its description was last modified on October 13, 2011 4:37:28 PM PDT.

Security Update 474 provides updated coverage for the following vulnerabilities and threats:

• Web Attack: Exploit Kit Variant 7:
  This signature detect attempts to download exploits from a malicious toolkit which may compromise a computer through various vendor vulnerabilities.
  
  
• Web Attack: Blackhole Toolkit Website 7:
  This signature detects attempts to download exploits from Blackhole toolkit that may compromise a computer through various vendor vulnerabilities.
  
  
• Web Attack: Mass Iframe Injection Attack 2:
  It is an attack where an iframe which points to a malicious site is injected in large number of clean websites.
  
  
• Web Attack: Blackhole Exploit Kit Website 10:
  This signature detects attempts to download exploits from Blackhole toolkit that may compromise a computer through various vendor vulnerabilities.
  
  

Security Update 474 removes coverage for the following vulnerabilities and threats:

• Web Attack: Blackhole Toolkit Website 4:
  This signature detects attempts to download exploits from Blackhole toolkit that may compromise a computer through various vendor vulnerabilities.