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 593 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 593 is 20120417.001 and its description was last modified on April 17, 2012 4:52:44 PM PDT.

Security Update 593 adds coverage for the following vulnerabilities and threats:

• Web Attack: Malicious Java Download 8:
  This is a silent signature to monitor all Jar downloads(clean and malicious)
  
  

Security Update 593 provides updated coverage for the following vulnerabilities and threats:

• Web Attack: Eleonore Toolkit Activity 2:
  This signature detects attempts to download exploits from a Eleonore toolkit which may compromise a computer through various vendor vulnerabilities.
  
  
• Fake App Attack: Fake AV Redirect 29:
  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.
  
  
• Fake App Attack: Adware Installer Download:
  This signature detects a file installer download which may be associated with adware.
  
  
• Web Attack: Malicious Java Class Download 2:
  This signature detect attempts to download exploits from a malicious toolkit which may compromise a computer through various vendor vulnerabilities.
  
  
• 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.
  
  
• Web Attack: Malicious JAR File Download 6:
  This signature detects attempts to download malicious JAR files.
  
  
• Web Attack: Facebook Manual Share 6:
  This signature will detect malicious web pages using manual sharing as spreading vector.
  
  
• Malicious Site: Malicious 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: Fake Browser Extension:
  This signature detects attempts to download Fake Browser extensions on the user's machine.
  
  
• Web Attack: Malicious JAR File Download 10:
  This signature detects attempts to download malicious JAR files.
  
  
• Web Attack: Malicious Toolkit Website 14:
  This signature detect attempts to download exploits from a malicious toolkit which may compromise a computer through various vendor vulnerabilities.