W32.Widoom is a worm that attempts to spread through Internet Relay Chat (IRC). It may also download files on to the compromised computer.

The threat W32.Widoom was discovered by Symantec Security Response Threat Severity Assessment on March 19, 2012 and was classified as Worm.

Initial Daily Certified version of virus definitions for Norton security products was released on March 19, 2012 revision 018. It should be noted that users with the older versions of Norton Internet Security are limited to Daily LiveUpdate definitions. For more information, go to the page where the are described virus definitions available for Norton products.

W32.Tozap is a worm that spreads through removable drives. It also opens a back door on the compromised computer.

The threat W32.Tozap was discovered by Symantec Security Response Threat Severity Assessment on March 19, 2012 and was classified as Worm.

Initial Daily Certified version of virus definitions for Norton security products was released on March 19, 2012 revision 003. It should be noted that users with the older versions of Norton Internet Security are limited to Daily LiveUpdate definitions. For more information, go to the page where the are described virus definitions available for Norton products.

W32.Pilleuz!gen34 is a heuristic detection that may include members of the W32.Pilleuz family of threats.

The threat W32.Pilleuz!gen34 was discovered by Symantec Security Response Threat Severity Assessment on March 16, 2012 and was classified as Worm.

Initial Daily Certified version of virus definitions for Norton security products was released on pending. It should be noted that users with the older versions of Norton Internet Security are limited to Daily LiveUpdate definitions. For more information, go to the page where the are described virus definitions available for Norton products.

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 571 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 571 is 20120316.005 and its description was last modified on March 16, 2012 8:36:13 PM PDT.

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 570 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 570 is 20120316.002 and its description was last modified on March 16, 2012 2:12:42 PM PDT.

Trojan.Mediyes is a Trojan horse that redirects Internet traffic on the compromised computer. It then attempts to steal information from certain websites.

The threat Trojan.Mediyes was discovered by Symantec Security Response Threat Severity Assessment on March 16, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on pending. It should be noted that users with the older versions of Norton Internet Security are limited to Daily LiveUpdate definitions. For more information, go to the page where the are described virus definitions available for Norton products.

SymbOS.Bakup is a worm for the Symbian OS that attempts to spread through Multimedia Messaging Service (MMS).

The threat SymbOS.Bakup was discovered by Symantec Security Response Threat Severity Assessment on March 16, 2012 and was classified as Worm.

Initial Daily Certified version of virus definitions for Norton security products was released on March 16, 2012 revision 020. It should be noted that users with the older versions of Norton Internet Security are limited to Daily LiveUpdate definitions. For more information, go to the page where the are described virus definitions available for Norton products.