Symantec has established some of the most comprehensive sources of Internet threat data in the world through the Symantec Global Intelligence Network, which is made up of more than 64.6 million attack sensors and records thousands of events per second.

In addition, Symantec maintains one of the world’s most comprehensive vulnerability databases, currently consisting of more than 47,662 recorded vulnerabilities (spanning more than two decades) from over 15,967 vendors representing over 40,006 products.

Spam, phishing and malware data is captured through a variety of sources, including the Symantec Probe Network, a system of more than 5 million decoy accounts; Symantec.cloud and a number of other Symantec security technologies. Skeptic, the Symantec.cloud proprietary heuristic technology is able to detect new and sophisticated targeted threats before reaching customers’ networks. Over 8 billion email messages and more than 1.4 billion Web requests are processed each day across 15 data centers. Symantec also gathers phishing information through an extensive antifraud community of enterprises, security vendors, and more than 50 million consumers.

These resources give Symantec’s analysts unparalleled sources of data with which to identify, analyze, and provide informed commentary on emerging trends in attacks, malicious code activity, phishing, and spam. The result is the annual Symantec Internet Security Threat Report, which gives enterprises and consumers the essential information to secure their systems effectively now and into the future.

Symantec blocked more than 5.5 billion malicious attacks in 2011; an increase of more than 81% from the previous year. This increase was in large part a result of a surge in polymorphic malware attacks, particularly from those found in Web attack kits and socially engineered attacks using email-borne malware. Targeted attacks exploiting zero-day vulnerabilities were potentially the most insidious of these attacks. With a targeted attack, it is almost impossible to know when you are being targeted, as by their very nature they are designed to slip under the radar and evade detection. Unlike these chronic problems, targeted attacks, politically-motivated hacktivist attacks, data breaches and attacks on Certificate Authorities made the headlines in 2011.

Originally developed by Netscape Communications to allow secure access of a browser to a Web server, Secure Sockets Layer (SSL) has become the accepted standard for Web security. The first version of SSL was never released because of problems regarding protection of credit card transactions on the Web. In 1994, Netscape created SSLv2, which made it possible to keep credit card numbers confidential and also authenticate the Web server with the use of encryption and digital certificates. In 1995, Netscape strengthened the cryptographic algorithms and resolved many of the security problems in SSLv2 with the release of SSLv3. SSLv3 now supports more security algorithms than SSLv2.

Learn about the latest threats and security trends covered in the Symantec Internet Security Threat Report (ISTR), a comprehensive source of Internet threat data that provides an overview and analysis of the year in global Internet threat activity.

The Symantec Internet Security Threat Report is one of the most comprehensive sources of Internet threat data in the world. Symantec’s analysts have access to unparalleled sources of data with which to identify, analyze, and provide informed commentary on emerging trends in attacks, malicious code activity, phishing, and spam. The Symantec Internet Security Threat Report gives enterprises and consumers the essential information they need to secure their systems effectively — now, and into the future.

Listen to Kevin Haley, Director, Security Technology and Response share an overview of the highlights of Symantec’s latest Internet Security Threat Report, Volume 17.

The Symantec Internet Security Threat Report is one of the most comprehensive sources of Internet threat data in the world. Symantec’s analysts have access to unparalleled sources of data with which to identify, analyze, and provide informed commentary on emerging trends in attacks, malicious code activity, phishing, and spam. The Symantec Internet Security Threat Report gives enterprises and consumers the essential information they need to secure their systems effectively — now, and into the future.

JS.Phremous is a worm that copies itself to removable drives and network shares.

The threat JS.Phremous was discovered by Symantec Security Response Threat Severity Assessment on April 30, 2012 and was classified as Worm.

Initial Daily Certified version of virus definitions for Norton security products was released on April 27, 2012 revision 033. 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.

Trojan.Ransomlock.L is a Trojan horse that locks the desktop making the computer unusable. It then asks the user to pay to have it unlocked.

The threat Trojan.Ransomlock.L was discovered by Symantec Security Response Threat Severity Assessment on April 30, 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.

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 601 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 601 is 20120427.001 and its description was last modified on April 27, 2012 2:08:53 PM PDT.

Packed.Dromedan!gen2 is a heuristic detection used to detect threats associated with the Downloader.Dromedan family of threats.

The threat Packed.Dromedan!gen2 was discovered by Symantec Security Response Threat Severity Assessment on April 27, 2012 and was classified as Trojan, Virus.

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 600 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 600 is 20120426.001 and its description was last modified on April 26, 2012 4:29:04 PM PDT.

SONAR.ProcHijack!gen4 is a heuristic detection that is designed to detect Trojan horse programs.

The threat SONAR.ProcHijack!gen4 was discovered by Symantec Security Response Threat Severity Assessment on April 26, 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.

Trojan.Smoaler is a Trojan horse that downloads files and may also open a back door on the compromised computer.

The threat Trojan.Smoaler was discovered by Symantec Security Response Threat Severity Assessment on October 5, 2011 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on October 5, 2011 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.

Trojan.Smoaler!gen2 is a heuristic detection used to detect threats associated with Trojan.Smoaler.

The threat Trojan.Smoaler!gen2 was discovered by Symantec Security Response Threat Severity Assessment on April 26, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 26, 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.

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 599 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 599 is 20120425.001 and its description was last modified on April 25, 2012 4:11:15 PM PDT.

Boot.Xpaj.B is a detection for a Master Boot Record (MBR) infected by W32.Xpaj.B.

The threat Boot.Xpaj.B was discovered by Symantec Security Response Threat Severity Assessment on April 25, 2012 and was classified as Trojan, Virus.

Initial Daily Certified version of virus definitions for Norton security products was released on April 25, 2012 revision 019. 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.

Bloodhound.Exploit.452 is a heuristic detection for files attempting to exploit the Microsoft Windows Authenticode Signature Verification Function Remote Code Execution Vulnerability (BID 52868).

The threat Bloodhound.Exploit.452 was discovered by Symantec Security Response Threat Severity Assessment on April 25, 2012 and was classified as Trojan, Virus.

Initial Daily Certified version of virus definitions for Norton security products was released on April 25, 2012 revision 002. 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 598 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 598 is 20120424.001 and its description was last modified on April 24, 2012 4:28:46 PM PDT.

Trojan.Maljava!gen4 is a heuristic detection used to detect threats associated with the Trojan.Maljava family of threats.

The threat Trojan.Maljava!gen4 was discovered by Symantec Security Response Threat Severity Assessment on April 24, 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.

Trojan.Maljava!gen3 is a heuristic detection used to detect threats associated with the Trojan.Maljava family of threats.

The threat Trojan.Maljava!gen3 was discovered by Symantec Security Response Threat Severity Assessment on April 24, 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.

Trojan.Maljava!gen2 is a heuristic detection used to detect threats associated with the Trojan.Maljava family of threats.

The threat Trojan.Maljava!gen2 was discovered by Symantec Security Response Threat Severity Assessment on April 24, 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.

Trojan.Maljava!gen1 is a heuristic detection used to detect threats associated with the Trojan.Maljava family of threats.

The threat Trojan.Maljava!gen1 was discovered by Symantec Security Response Threat Severity Assessment on April 24, 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.

Trojan.Maljava is a detection name used by Symantec to identify malicious Java files that exploit one or more vulnerabilities.

The threat Trojan.Maljava was discovered by Symantec Security Response Threat Severity Assessment on October 19, 2010 and was classified as Trojan, Virus.

Initial Daily Certified version of virus definitions for Norton security products was released on October 20, 2010 revision 002. 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.

OSX.Flashback.L is a Trojan horse that may perform malicious activities on the compromised computer.

The threat OSX.Flashback.L was discovered by Symantec Security Response Threat Severity Assessment on April 24, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 24, 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.

UltraDefragFraud!gen15 is a heuristic detection used to detect risks associated with the UltraDefraggerFraud family.

The threat UltraDefragFraud!gen15 was discovered by Symantec Security Response Threat Severity Assessment on April 24, 2012 and was classified as Security Assessment Tool.

Initial Daily Certified version of virus definitions for Norton security products was released on April 24, 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.

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 597 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 597 is 20120423.001 and its description was last modified on April 23, 2012 2:51:25 PM PDT.

Backdoor.Barkiofork is a Trojan horse that opens a back door on the compromised computer.

The threat Backdoor.Barkiofork was discovered by Symantec Security Response Threat Severity Assessment on April 23, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 23, 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.

Packed.Dromedan!gen1 is a heuristic detection used to detect threats associated with the Downloader.Dromedan family of threats.

The threat Packed.Dromedan!gen1 was discovered by Symantec Security Response Threat Severity Assessment on April 23, 2012 and was classified as Trojan, Virus.

Initial Daily Certified version of virus definitions for Norton security products was released on April 23, 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.

Downloader.Dromedan is a Trojan horse that downloads threats on to the compromised computer.

The threat Downloader.Dromedan was discovered by Symantec Security Response Threat Severity Assessment on October 19, 2011 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on October 28, 2011 revision 002. 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.

VirusDoctor!gen11 is a heuristic detection used to detect threats associated with VirusDoctor.

The threat VirusDoctor!gen11 was discovered by Symantec Security Response Threat Severity Assessment on April 23, 2012 and was classified as Misleading Application.

Initial Daily Certified version of virus definitions for Norton security products was released on April 23, 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.

Suspicious.B.UMH is a detection technology designed to detect entirely new malware threats without traditional signatures. This technology is aimed at detecting malicious software that has been intentionally mutated or morphed by attackers.

The threat Suspicious.B.UMH was discovered by Symantec Security Response Threat Severity Assessment on April 20, 2012 and was classified as Trojan, Virus.

Initial Daily Certified version of virus definitions for Norton security products was released on April 20, 2012 revision 032. 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.

Suspicious.C.UMH is a detection technology designed to detect entirely new malware threats without traditional signatures. This technology is aimed at detecting malicious software that has been intentionally mutated or morphed by attackers.

The threat Suspicious.C.UMH was discovered by Symantec Security Response Threat Severity Assessment on April 20, 2012 and was classified as Trojan, Virus.

Initial Daily Certified version of virus definitions for Norton security products was released on April 20, 2012 revision 032. 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.Priter is a virus that infects executable files.

The threat W32.Priter was discovered by Symantec Security Response Threat Severity Assessment on April 20, 2012.

Initial Daily Certified version of virus definitions for Norton security products was released on April 21, 2012 revision 017. 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.

Backdoor.Nitol is a Trojan horse that opens a back door on the compromised computer.

The threat Backdoor.Nitol was discovered by Symantec Security Response Threat Severity Assessment on April 22, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 22, 2012 revision 006. 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 596 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 596 is 20120420.001 and its description was last modified on April 20, 2012 2:29:35 PM PDT.

Trojan.Ransomlock.K is a Trojan horse that locks the desktop making the computer unusable. It then asks the user to pay to have it unlocked.

The threat Trojan.Ransomlock.K was discovered by Symantec Security Response Threat Severity Assessment on April 20, 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.

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 595 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 595 is 20120419.001 and its description was last modified on April 19, 2012 4:19:53 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 594 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 594 is 20120418.001 and its description was last modified on April 18, 2012 4:32:36 PM PDT.

OSX.Olyx.B is a Trojan horse that opens a back door and may download potentially malicious files onto the compromised computer.

The threat OSX.Olyx.B was discovered by Symantec Security Response Threat Severity Assessment on April 18, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 18, 2012 revision 017. 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.

Gamevance!gen6 is a heuristic detection used to detect risks associated with the GameVance family.

The threat Gamevance!gen6 was discovered by Symantec Security Response Threat Severity Assessment on April 18, 2012 and was classified as Potentially Unwanted App.

Initial Daily Certified version of virus definitions for Norton security products was released on April 18, 2012 revision 017. 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.

UltraDefragFraud!gen14 is a heuristic detection used to detect risks associated with the UltraDefraggerFraud family.

The threat UltraDefragFraud!gen14 was discovered by Symantec Security Response Threat Severity Assessment on April 18, 2012 and was classified as Security Assessment Tool.

Initial Daily Certified version of virus definitions for Norton security products was released on April 18, 2012 revision 017. 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 593 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 593 is 20120417.001 and its description was last modified on April 17, 2012 4:52:44 PM PDT.

Trojan.Tracur!gen2 is a heuristic detection used to detect threats associated with the Trojan.Tracur family of threats.

The threat Trojan.Tracur!gen2 was discovered by Symantec Security Response Threat Severity Assessment on April 17, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 17, 2012 revision 019. 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.

Trojan.Tracur is a Trojan horse that redirects web search queries to a malicious URL and may also drop other malware.

The threat Trojan.Tracur was discovered by Symantec Security Response Threat Severity Assessment on July 14, 2011 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on July 14, 2011 revision 041. 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 592 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 592 is 20120416.001 and its description was last modified on April 16, 2012 2:17:17 PM PDT.

Android.Updtbot is a Trojan horse for Android devices that may arrive through SMS messages. It may then open a back door on the compromised device.

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

Initial Daily Certified version of virus definitions for Norton security products was released on April 16, 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.

Infostealer.Bancos is a detection name used by Symantec to identify malicious software programs that gather confidential financial information from the compromised computer.

The threat Infostealer.Bancos was discovered by Symantec Security Response Threat Severity Assessment on July 17, 2003.

Initial Daily Certified version of virus definitions for Norton security products was released on July 17, 2003 revision 007. 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.

Bloodhound.Bancos.2 is a heuristic detection used to detect threats associated with the Infostealer.Bancos family

The threat Bloodhound.Bancos.2 was discovered by Symantec Security Response Threat Severity Assessment on April 16, 2012 and was classified as Trojan, Virus.

Initial Daily Certified version of virus definitions for Norton security products was released on April 14, 2012 revision 016. 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.

Android.Dougalek is a Trojan horse for Android devices that steals information from the compromised device. The threat is typically disguised to display a video.

The threat Android.Dougalek was discovered by Symantec Security Response Threat Severity Assessment on April 14, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 14, 2012 revision 016. 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 591 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 591 is 20120413.001 and its description was last modified on April 13, 2012 4:14:45 PM PDT.

OSX.Sabpab is a Trojan horse that opens a back door on the compromised computer.

The threat OSX.Sabpab was discovered by Symantec Security Response Threat Severity Assessment on April 13, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 13, 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.

Trojan.Zatvex!gen5 is a heuristic detection used to detect threats belonging to the Trojan.Zatvex threat family.

The threat Trojan.Zatvex!gen5 was discovered by Symantec Security Response Threat Severity Assessment on April 13, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 13, 2012 revision 002. 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 590 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 590 is 20120412.001 and its description was last modified on April 12, 2012 2:33:43 PM PDT.

Packed.Generic.362 is a heuristic detection for files that may have been obfuscated or encrypted in order to conceal themselves from antivirus software. This heuristic detection is used to detect various threat families.

The threat Packed.Generic.362 was discovered by Symantec Security Response Threat Severity Assessment on April 12, 2012 and was classified as Trojan, Worm.

Initial Daily Certified version of virus definitions for Norton security products was released on April 9, 2012 revision 034. 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 589 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 589 is 20120411.001 and its description was last modified on April 11, 2012 2:56:25 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 588 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 588 is 20120410.002 and its description was last modified on April 10, 2012 4:45:33 PM PDT.

Android.Tigerbot is a Trojan horse for Android devices that opens a back door on the compromised device.

The threat Android.Tigerbot was discovered by Symantec Security Response Threat Severity Assessment on April 10, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 10, 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.

Trojan.Darkshell is a Trojan horse that may perform distributed denial of service (DDoS) attacks.

The threat Trojan.Darkshell was discovered by Symantec Security Response Threat Severity Assessment on April 9, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 9, 2012 revision 019. 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.

OSX.Flashback.K is a Trojan horse that opens a back door on the compromised computer.

The threat OSX.Flashback.K was discovered by Symantec Security Response Threat Severity Assessment on April 9, 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.

Packed.Generic.361 is a heuristic detection for files that may have been obfuscated or encrypted in order to conceal themselves from antivirus software. This heuristic detection is used to detect various threat families.

The threat Packed.Generic.361 was discovered by Symantec Security Response Threat Severity Assessment on April 9, 2012 and was classified as Trojan, Worm.

Initial Daily Certified version of virus definitions for Norton security products was released on April 9, 2012 revision 019. 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 586 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 586 is 20120406.002 and its description was last modified on April 6, 2012 11:53:25 AM PDT.

Bloodhound.OSXFB is a heuristic detection used to detect threats associated with the OSX.Flashback family of threats.

The threat Bloodhound.OSXFB was discovered by Symantec Security Response Threat Severity Assessment on April 6, 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.

Trojan.FakeAV!gen91 is a heuristic detection for files that may be members of the Trojan.FakeAV family of Trojans.

The threat Trojan.FakeAV!gen91 was discovered by Symantec Security Response Threat Severity Assessment on April 6, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 6, 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.

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 585 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 585 is 20120405.002 and its description was last modified on April 5, 2012 4:20:16 PM PDT.

Packed.Generic.360 is a heuristic detection for files that may have been obfuscated or encrypted in order to conceal themselves from antivirus software. This heuristic detection is used to detect various threat families.

The threat Packed.Generic.360 was discovered by Symantec Security Response Threat Severity Assessment on April 5, 2012 and was classified as Trojan, 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.

Trojan.FakeAV!gen90 is a heuristic detection for files that may be members of the Trojan.FakeAV family of Trojans.

The threat Trojan.FakeAV!gen90 was discovered by Symantec Security Response Threat Severity Assessment on April 5, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 5, 2012 revision 017. 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.

Android.Fakevoice is a Trojan horse for Android devices that dials a premium-rate phone number.

The threat Android.Fakevoice was discovered by Symantec Security Response Threat Severity Assessment on April 5, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on March 27, 2012 revision 008. 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 584 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 584 is 20120404.002 and its description was last modified on April 4, 2012 3:14:09 PM PDT.

Packed.Generic.359 is a heuristic detection for files that may have been obfuscated or encrypted in order to conceal themselves from antivirus software. This heuristic detection is used to detect various threat families.

The threat Packed.Generic.359 was discovered by Symantec Security Response Threat Severity Assessment on April 3, 2012 and was classified as Trojan, Worm.

Initial Daily Certified version of virus definitions for Norton security products was released on April 4, 2012 revision 004. 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.

Android.Gonfu.D is a Trojan horse that opens a back door on Android devices.

The threat Android.Gonfu.D was discovered by Symantec Security Response Threat Severity Assessment on April 4, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 4, 2012 revision 019. 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 583 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 583 is 20120403.002 and its description was last modified on April 3, 2012 2:53:01 PM PDT.

Backdoor.Winnti is a Trojan horse that opens a back door on the compromised computer.

The threat Backdoor.Winnti was discovered by Symantec Security Response Threat Severity Assessment on October 27, 2011 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on October 28, 2011 revision 002. 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.IRCBot.NG is a worm that spreads through removable drives, MSN Messenger, and by exploiting the Microsoft Windows Server Service RPC Handling Remote Code Execution Vulnerability (BID 31874) and the Microsoft Windows Shortcut 'LNK/PIF' Files Automatic File Execution Vulnerability (BID 41732). It also opens a back door on the compromised computer.

The threat W32.IRCBot.NG was discovered by Symantec Security Response Threat Severity Assessment on April 7, 2011 and was classified as Worm.

Initial Daily Certified version of virus definitions for Norton security products was released on April 7, 2011 revision 035. 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.

Backdoor.Winnti!inf is a detection for files that have been modified by Backdoor.Winnti.

The threat Backdoor.Winnti!inf was discovered by Symantec Security Response Threat Severity Assessment on April 3, 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.

W32.Ircbot.NG!gen6 is a heuristic detection used to detect threats associated with the W32.IRCBot.NG family of threats.

The threat W32.Ircbot.NG!gen6 was discovered by Symantec Security Response Threat Severity Assessment on April 3, 2012 and was classified as Trojan, Virus.

Initial Daily Certified version of virus definitions for Norton security products was released on April 3, 2012 revision 041. 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.

Trojan.Zeroaccess!inf2 is a detection for files that are infected by Trojan.Zeroaccess.

The threat Trojan.Zeroaccess!inf2 was discovered by Symantec Security Response Threat Severity Assessment on April 3, 2012 and was classified as Trojan.

Initial Daily Certified version of virus definitions for Norton security products was released on April 3, 2012 revision 022. 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 582 you need to run LiveUpdate feature of Norton Internet Security product. Please note that LiveUpdate definition identifier of Security Update 582 is 20120401.001 and its description was last modified on April 2, 2012 4:07:58 PM PDT.

Android.GeoFake is a Trojan horse for Android devices that sends SMS messages to premium-rate numbers.

The threat Android.GeoFake was discovered by Symantec Security Response Threat Severity Assessment on April 2, 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.