Security Updates give the most recent protection content for NIS product, 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 404 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 404 is 20110630.050 and its description was last modified on June 30, 2011 5:25:56 PM PDT.

Security Update 404 provides updated coverage for the following vulnerabilities and threats:

• Web Attack: Siberia Toolkit Activity 2:
  Siberia Toolkit compromises the machine by targeting various vendor vulnerabilities on the victim's machine.
  
  
• Web Attack: Malicious Java Activity 6:
  This signature detects attempts to download malicious JAR files
  
  
• Attack: WMP Malformed PNG CVE-2006-0025:
  This signature detects malformed PNG files that could cause a buffer overflow in Windows Media Player.
  
  
• Attack: MS Excel SLK File Font Parsing CVE-2011-1276:
  This signature detects attempt to a remote code execution vulnerability in Microsoft Excel application while parsing specially crafted SLK files.