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 420 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 420 is 20110725.001 and its description was last modified on July 26, 2011 5:11:13 PM PDT.

Security Update 420 adds coverage for the following vulnerabilities and threats:

• Web Attack: Facebook Chat Scam:
  This signature will detect known Facebook scams which lead to surveys and later gain access to the Facebook profile.
  
  
• System Infected: ZeroAccess Rootkit Activity:
  This signature detects ZeroAccess Rootkit Activity
  
  
• Web Attack: Facebook Event Invitation Scam 7:
  This signature will detect known Facebook scams which lead to surveys and later gain access to the Facebook profile.
  
  
• System Infected: Mozipow Trojan Activity:
  This signature detects Mozipow trojan activity on the infected machine.
  
  
• Attack: MS Outlook NNTP Response CVE-2005-1213:
  This signature detects an attempt to exploit a vulnerability in Microsoft Outlook Express.
  
  
• Attack: HP Power Manager Administration CVE-2009-2685:
  This signature detects buffer overflow exploitation attempts in HP Power Manager Management Web Server.
  
  

Security Update 420 provides updated coverage for the following vulnerabilities and threats:

• Web Attack: MS FrontPage Remote Debug:
  This signature detects an attempt to exploit a flaw in Microsoft Frontpage Server Extension's Remote Debugging interface through a specially crafted URI.
  
  
• Attack: HP OpenView NNM Request CVE-2008-0067:
  This signature detects a Buffer Overflow Attempt on HP OpenView Network Node Manager.
  
  
• Web Attack: Malicious Toolkit Website 10:
  This signature detect attempts to download exploits from a malicious toolkit which may compromise a computer through various vendor vulnerabilities.
  
  
• Web Attack: AOL Desktop RTX:
  This Signature detects attempts to exploit buffer overflow vulnerability in AOL Desktop.
  
  
• System Infected: Poison IVY Backdoor Activity:
  This signature detects Poison IVY backdoor Trojan activity on the infected machine.