Norton AntiVirus

The redesigned main graphical user interface aggregates information in a central user interface.[15] CNET reports the Norton Protection Center, while useful, attempts to advertise additional products. To further facilitate detection of zero-day malware, Bloodhound disassembles a variety of programming languages, and scans code for malicious instructions using predefined algorithms.[16] Internet Explorer homepage hijacking protection was introduced in this release as well; however notably missing is search engine hijacking protection. CNET highlighted Norton AntiVirus 2006's noticeable impact on system performance.[15]

Operating system requirements call for Windows 2000 Service Pack 3 or Windows XP. 150 MB of free space and a 300 MHz processor is required under either operating system. 128 MB of RAM is required under Windows 2000, while 256 MB is required in Windows XP.[15]

Norton AntiVirus was released on September 12, 2006.[17] Symantec revised Norton AntiVirus with the goal of reducing high system resource utilization.[18] Windows Vista compatibility was introduced in this release as well. Despite having about 80% of the code rewritten, CNET reports mixed results in performance testing.[18]

Windows 2000 compatibility was dropped from this release. Compatibility with 32-bit versions of Windows Vista was added to this release with a patch from Symantec. Hardware requirements under Vista call for 150 MB free space, an 800  MHz processor and 512 MB RAM. Requirements under Windows XP similarly call for 150 MB free space, a 300 MHz processor, and 256 MB of RAM.

Norton AntiVirus 2008 was released on August 28, 2007. Emphasizing malware prevention, new features include SONAR, which looks for suspicious application behavior. This release adds real-time exploit protection, preventing attackers from leveraging common browser and application vulnerabilities.[19][20]

When installed in 32-bit versions of Windows XP Service Pack 2, 300 MB of free space, a 300 MHz processor, and 256 MB of RAM is required. When installed in 32-bit and 64-bit versions of Windows Vista, 300 MB of free space, an 800 MHz processor, and 256 MB of RAM is needed.

The main user interface of Norton AntiVirus 2009

Norton AntiVirus 2009 was released on September 8, 2008. Addressing performance issues, over 300 changes were made, with a "zero-impact" goal.[21][22]Benchmarking conducted by Passmark Software PTY LTD highlights its 47-second install time, 32 second scan time, and 5 MB memory utilization. Symantec funded the benchmark test and provided some scripts used to benchmark each participating antivirus software.[23]

The security status and settings are now displayed in a single main interface. A CPU usage monitor displays the total CPU utilization and Norton's CPU usage in the main interface. Other features include Norton Insight, a whitelisting technology which cuts scanning times by mapping known safe files using information from an online database.[24] To address malware response times, updates are delivered every 5 to 15 minutes. However, such updates are not tested by Symantec, and may cause false positives, or incorrectly identify files as malicious. The exploit scanner found in the 2007 and 2008 versions was dropped from this release.

When installed in 32-bit versions of Windows XP Service Pack 2, 150 MB of free space, a 300 MHz processor, and 256 MB of RAM is required. When installed in 32-bit or 64-bit versions of Windows Vista, 150 MB of free space, an 800 MHz processor, and 512 MB of RAM is required.

Two variations on Norton AntiVirus 2009 are also marketed by Symantec. The Gaming edition provides finer control over when Norton downloads updates and allows components of the suite to be disabled either manually or automatically when the computer enters full-screen mode. The Classic edition cannot find or remove adware and spyware.

The main GUI of Norton AntiVirus 2010

Version 17.0 was released on September 9, 2009.[25] Several features have been updated in this release, including SONAR, now dubbed SONAR 2. It now uses more information to determine if an application is truly malicious. Norton Insight can present users with information about the origins, activities, and performance of applications along with reputation data.[25] A new feature codenamed Autospy helps users understand what Norton did when malware was found. Previous releases removed threats on sight and quietly warned users, potentially confusing when users are deceived in downloading rogue security software. Much of this information is placed on the back of the main window; a toggle button switches between the sides.[26] Symantec has also added Windows 7 support. Aside from that, Symantec has also added the Norton Download Insight to prevent drive by drive downloads.

Symantec briefly discontinued the standalone Norton AntiVirus product in 2015 instead replacing it with Norton Security.[27]

The FBI confirmed the active development of Magic Lantern, a keylogger intended to obtain passwords to encrypted e-mail and other documents during criminal investigations. Magic Lantern was first reported in the media by Bob Sullivan of MSNBC on 20 November 2001 and by Ted Bridis of the Associated Press.[28][29] The FBI intends to deploy Magic Lantern in the form of an e-mail attachment. When the attachment is opened, it installs a trojan horse on the suspect's computer, which is activated when the suspect uses PGP encryption, often used to increase the security of sent email messages. When activated, the trojan will log the PGP password, which allows the FBI to decrypt user communications.[30] Symantec and other major antivirus vendors have whitelisted the Magic Lantern trojan, rendering their antivirus products, including Norton AntiVirus, incapable of detecting it. Concerns around this whitelisting include uncertainties about Magic Lantern's full surveillance potential and whether hackers could subvert it and redeploy it for purposes outside of law enforcement.[31][32]

Graham Cluley, a technology consultant from Sophos, said "We have no way of knowing if it was written by the FBI, and even if we did, we wouldn't know whether it was being used by the FBI or if it had been commandeered by a third party".[33] Another reaction came from Marc Maiffret, chief technology officer and co-founder of eEye Digital Security who states: "Our customers are paying us for a service, to protect them from all forms of malicious code. It is not up to us to do law enforcement's job for them so we do not, and will not, make any exceptions for law enforcement malware or other tools."[34]

Proponents of Magic Lantern argue the technology would allow law enforcement to efficiently and quickly decrypt time-sensitive messages protected by encryption schemes. Implementing Magic Lantern does not require physical access to a suspect's computer, unlike Carnivore, a predecessor to Magic Lantern, since physical access to a computer would require a court order.[35] FBI spokesman Paul Bresson, in response to a question about whether Magic Lantern also needed a court order to deploy, would only say "Like all technology projects or tools deployed by the FBI it would be used pursuant to the appropriate legal process."[36][37]

On January 28, 2010 Symantec Anti-virus update marked Spotify as a Trojan Horse disabling the software across millions of PCs.[38][39]

Retail customers report slow and indifferent service on bugs. Examples include a faulty error message stating current subscriptions had expired.[40] Users received an error stating "Your virus protection cannot be updated." This error occurred after an update to the software and refused to allow daily updates.[40] Though the bug was reported in 2004, it was not corrected for the 2005 or 2006 versions.

Another incident occurred in May 2007, when Norton AntiVirus flagged components of the Pegasus email client as malicious, rendering the program corrupted.[41] Symantec customer service addressed the problem by running through a checklist of troubleshooting steps which were not always successful.

On July 25, 2006, Symantec released a faulty update for Norton AntiVirus 2006 users. Users reported an onscreen message stating "Norton AntiVirus 2006 does not support the repair feature. Please uninstall and reinstall.".[42] Symantec claimed the faulty update was downloaded to customers between 1:00 PM and 7:00 PM on July 25, 2006. Symantec developed a workaround tool and has listed troubleshooting steps, available here. The company released a statement, stating they expected to deliver a repair patch to affected users by Monday, July 31, 2006."[43]

Norton Removal Tool

Norton Removal Tool
Developer(s)	Symantec Corporation
Stable release	2012.0.0.19
Operating system	Microsoft Windows
Website	Norton Removal Tool Homepage

Norton AntiVirus has been criticized for refusing to uninstall completely, leaving unnecessary files behind.[44][45] Another issue is versions prior to 2009 installed LiveUpdate, which updates Norton-branded software, separately. The user must uninstall both Norton AntiVirus and the LiveUpdate component manually. The LiveUpdate component is purposely left behind to update other Norton-branded products, if present.[46] In response, Symantec developed the Norton Removal Tool (SymNRT) to remove leftover registry keys and values along with files and folders.[47] However, neither route of uninstallation will remove subscription data, preserved to prevent users from installing multiple trial copies.
SymNRT can only remove these Norton programs:

• Norton AntiSpam 2004 and 2005
• Norton Antivirus 2003 through 2012
• Norton Ghost 2003,9.0,10.0,12.0,1 A.O and 15.0
• Norton GoBack 3.1 through 4.2
• Norton Internet Security 2003 through 2012
• Norton Password Manager
• Norton Personal Firewall 2003 through 2006
• Norton SystemWorks 2003 through 2009
• Norton Confidential Online 2007
• Norton Add-on Pack 1.0 – 4.0
• Norton Save and Restore 1.0 through 2.0
• Norton 360/Security Suite/Business Suite 1.0 – 5.0
• Norton Safety Minder 1.0
• Norton Safe Web 3.2

Once SymNRT has started the removal process, it cannot be stopped. It is recommended to close all running programs prior to running SymNRT. ACT! and WinFax users are recommended to back up their databases before running SymNRT.

Norton AntiVirus 2007 will not install alongside ZoneAlarm. This incompatibility has caused annoyance for Norton customers who purchased Norton AntiVirus 2007 with no prior warning or notice of the incompatibility.[48] Symantec recommends removing ZoneAlarm, then reinstalling it with its Internet Worm Protection feature disabled, which controls what applications can access the Internet and which protocols they can use to do so.

On March 9, 2009, some users of Norton AntiVirus 2006 and 2007 experienced a firewall warning stating a Norton-associated file, "PIFTS.exe", was trying to connect to the Internet.[49] Although this file was revealed to be a harmless diagnostic patch, the program gained attention in the media when Symantec removed posts from their forum concerning PIFTS. With no information available about the purpose of the program there was speculation that the program was malware or a backdoor.[50]

The SANS Internet Storm Center claimed to have spoken to a Symantec employee who has confirmed that "the program is theirs, part of the update process and not intended to do harm."[51] Graham Cluley, a consultant from antivirus vendor Sophos found PIFTS connected to a Symantec server, forwarding product and computer information.[52]

On March 10, Symantec made an official response to the PIFTS program, claiming posts in the support forum were deleted due to forum spam rules; however the deletion of PIFTS-related posts began before the spam attacks.[53] Symantec stated PIFTS itself was a diagnostic patch.[50] Cole stated the purpose of the update was to help determine how many customers would need to be migrated to Windows 7-compatible versions of Norton AntiVirus. PIFTS apparently was released without a digital signature to verify its identity, causing firewalls to prompt for permission when it attempted to connect to the Internet.[54]

Symantec has been criticized by some consumers for perceived ethical violations, including allegations that support technicians would tell customers that their systems were infected and needed a technician to resolve it remotely for an extra fee, then refuse to refund when the customers alleged their systems had not actually been infected.[55]