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 543 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 543 is 20120202.002 and its description was last modified on February 2, 2012 4:24:40 PM PST.

Security Update 543 adds coverage for the following vulnerabilities and threats:

• Web Attack: Facebook LikeJacking Attack 39:
  This signature will detect malicious web pages which are used for facebook likejacking attacks.
  
  
• Web Attack: Facebook Fake Plugin:
  This signature will detect malicious web pages which are used for facebook likejacking attacks.
  
  
• Web Attack: Malicious Javascript Website 8:
  This signature detects attempts to exploit machine through malicious JavaScript.
  
  
• Web Attack: Mass Injection Website:
  It is an attack where an iframe which points to a malicious site is injected in large number of clean websites.
  
  

Security Update 543 provides updated coverage for the following vulnerabilities and threats:

• Web Attack: Malicious Toolkit Website 13:
  This signature detect attempts to download exploits from a malicious toolkit which may compromise a computer through various vendor vulnerabilities.
  
  
• Web Attack: Malicious JAR File Download 2:
  This signature detects attempts to download malicious JAR files.
  
  
• Web Attack: Blackhole Toolkit Website 12:
  This signature detects attempts to download exploits from Blackhole toolkit that may compromise a computer through various vendor vulnerabilities.
  
  
• Web Attack: Malicious Exploit Kit Website 6:
  This signature detect attempts to download exploits from a malicious toolkit which may compromise a computer through various vendor vulnerabilities.
  
  

Security Update 543 removes coverage for the following vulnerabilities and threats:

• System Infected: Trojan.Gatak:
  This signature detects malicious Backdoor Trojan activity on the compromised computer.