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 522 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 522 is 20111228.001 and its description was last modified on December 28, 2011 3:36:06 PM PST.

Security Update 522 adds coverage for the following vulnerabilities and threats:

• System Infected: HTTP Tidserv Download Request 5:
  Your computer is infected - Action is recommended, see response section for further details on how to run the removal tool.
  
  This IPS signature is designed to detect and block the network communications initiated by Backdoor.Tidserv to prevent the threat from receiving additional commands and further updates even when antivirus might not be able to detect the infection.
  
  

Security Update 522 provides updated coverage for the following vulnerabilities and threats:

• Web Attack: Malicious File Download Request 10:
  This signature detect attempts to download exploits from a malicious toolkit which may compromise a computer through various vendor vulnerabilities.
  
  
• Web Attack: Facebook LikeJacking 13:
  This signature will detect malicious web pages which are used for facebook likejacking attacks.
  
  
• Web Attack: Malicious Exploit Kit Website 6:
  This signature detect attempts to download exploits from a malicious toolkit which may compromise a computer through various vendor vulnerabilities.