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 495 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 495 is 20111116.030 and its description was last modified on November 16, 2011 5:09:12 PM PST.

Security Update 495 adds coverage for the following vulnerabilities and threats:

• System Infected: Trojan Downloader Activity 3:
  This signature detects suspicious activities associated with the download of malware which may result in the compromise of the host.
  
  
• Web Attack: Facebook LikeJacking Attack 23:
  This signature will detect malicious web pages which are used for facebook likejacking attacks.
  
  
• Web Attack: Blackhole Exploit Kit Website 12:
  This signature detects attempts to download exploits from Blackhole toolkit that may compromise a computer through various vendor vulnerabilities.
  
  
• Web Attack: Malicious Toolkit Iframe Injection 6:
  It is an attack where an iframe which points to a malicious site is injected in large number of clean websites.
  
  

Security Update 495 provides updated coverage for the following vulnerabilities and threats:

• Attack: Adobe Embedded SWF CVE-2011-0611:
  This signature will detect attempts to exploit a remote code execution vulnerability in Adobe Flash Player.
  
  
• Web Attack: Blackhole Toolkit Activity 8:
  This signature detects attempts to download exploits from Blackhole toolkit that may compromise a computer through various vendor vulnerabilities.
  
  
• Fake App Attack: Fake AV Website 23:
  A Web based attack relating to misleading applications has been blocked. No further action is required, but you may wish to update your virus definitions and run a full system scan as a precautionary measure.
  
  
• Web Attack: Blackhole Exploit Kit Website 11:
  This signature detects attempts to download exploits from Blackhole toolkit that may compromise a computer through various vendor vulnerabilities.
  
  

Security Update 495 removes coverage for the following vulnerabilities and threats:

• Web Attack: Trojan Prime Activity:
  This signature detects malicious Backdoor Trojan activity on the compromised computer.