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 633 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 633 is 20120612.001 and its description was last modified on June 12, 2012 4:14:31 PM PDT.

Security Update 633 adds coverage for the following vulnerabilities and threats:

• Web Attack: Malicious Iframe Injection:
  It is an attack where an iframe which points to a malicious site is injected in large number of clean websites.
  
  
• 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.
  
  

Security Update 633 provides updated coverage for the following vulnerabilities and threats:

• Web Attack: Malicious Java Download 13:
  This signature detects attempts to download malicious JAR files
  
  
• Malicious Site: Suspicious Request:
  You have attempted to visit a known malicious IP address. Visiting this web site could potentially put you at risk to becoming infected. Symantec's Network Threat Protection solution has prevented any potential infection attempts from occurring. You should not have to take any additional actions and are safe from infection. It is recommended that you do NOT visit this site.
  
  
• Web Attack: Exploit Toolkit Website 3:
  This signature detect attempts to download exploits from a malicious toolkit which may compromise a computer through various vendor vulnerabilities.
  
  
• Web Attack: Exploit Toolkit Website 5:
  This signature detect attempts to download exploits from a malicious toolkit which may compromise a computer through various vendor vulnerabilities.