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 427 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 427 is 20110804.030 and its description was last modified on August 4, 2011 8:20:17 PM PDT.

Security Update 427 adds coverage for the following vulnerabilities and threats:

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

Security Update 427 provides updated coverage for the following vulnerabilities and threats:

• Attack: MS PowerPoint TimeColorBehaviorContainer Record CVE-2011-0655:
  This signature detects attempt to a remote code execution vulnerability in Microsoft PowerPoint application.
  
  
• Web Attack: Mass Iframe Injection Attack 2:
  It is an attack where an iframe which points to a malicious site is injected in large number of clean websites.