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 548 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 548 is 20120211.002 and its description was last modified on February 13, 2012 6:36:27 PM PST.

Security Update 548 adds coverage for the following vulnerabilities and threats:

• System Infected: HTTP Tidserv Request 3:
  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 548 provides updated coverage for the following vulnerabilities and threats:

• System Infected: Malicious File Download Request:
  This signature will detect attempt to download malicious files through HTTP requests.
  
  
• Web Attack: Malicious Injected Javascript 10:
  This signature detects attempts to exploit machine through malicious JavaScript.
  
  
• Web Attack: Blackhole Toolkit Website 14:
  This signature detects attempts to download exploits from Blackhole toolkit that may compromise a computer through various vendor vulnerabilities.