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CA AntiVirus: CA公司: Clam AntiVirus: Tomasz Kojm Comodo AntiVirus（科摩多） Comodo Group Dr.Web anti-virus: DialogueScience, Inc. F-PROT: FRISK Software: F-Secure: F-Secure: FortiClient: FortiClient, Inc: G DATA: G DATA Software: Kaspersky（卡巴斯基） Kaspersky Lab McAfee: McAfee: NOD32: Eset: Norton（諾頓） 賽門鐵克. AhnLab, the top antivirus, detected 80.28%. Unofficial databases. The ClamAV engine can be reliably used to detect several kinds of files. In particular, some phishing emails can be detected using antivirus techniques. However, false positive rates are inherently higher than those of traditional malware detection. Ahnlab V3 Internet Security 9 0 free download - Comodo Internet Security, AVG Internet Security, Avast Internet Security, and many more programs. 安博士（韓語： 안랩 ，英語： AhnLab, Inc. ），原名称安哲秀研究所（韓語： 안철수연구소 ）是一家位于韩国的网络安全服务供应商，于1995年成立。2009年的营收额约695亿韩元，在韩国信息安全业排名第一位。. AhnLab sells computer software such as antivirus software, online security, network security appliances such as Advanced Threat (Malware) Detection & Remediation, including APT type of cyber attack, firewalls, IPS, UTM, and security software for online games and the mobile web.

AVG AntiVirus (previously known as AVG, an abbreviation of Anti-Virus Guard) is a line of antivirus software developed by AVG Technologies, a subsidiary of Avast.^[3][4] It is available for Windows, macOS and Android.

History

The brand AVG comes from Grisoft's first product, Anti-Virus Guard, launched in 1992 in the Czech Republic. In 1997, the first AVG licenses were sold in Germany and the UK. AVG was introduced in the US in 1998.^[5]

The AVG Free Edition helped raise awareness of the AVG product line.^[6] In 2006, the AVG security package grew to include anti-spyware as AVG Technologies acquired ewido Networks, an anti-spyware group. AVG Technologies acquired Exploit Prevention Labs (XPL) in December 2007 and incorporated that company's LinkScanner safe search and surf technology into the AVG 8.0 security product range released in March 2008. In January 2009, AVG Technologies acquired Sana Security, a developer of identity theft prevention software. This software was incorporated into the AVG security product range in March 2009.

According to AVG Technologies, the company has more than 200 million active users worldwide, including more than 100 million who use their products and services on mobile devices.^[7]

On 7 July 2016, Avast announced an agreement to acquire AVG for $1.3 billion.^[8]

Platform support

AVG provides AVG AntiVirus Free for Windows, AVG AntiVirus for Mac for macOS and AVG AntiVirus for Android for Android devices. All are freemium products: They are free to download, install, update and use, but for technical support a premium plan must be purchased.

AVG stopped providing new features for Windows XP and Windows Vista in January 2019. New versions require Windows 7 or later; virus definitions are still provided for previous versions.^[9]

Features

AVG features most of the common functions available in modern antivirus and Internet security programs, including periodic scans, scans of sent and received emails (including adding footers to the emails indicating this), the ability to repair some virus-infected files, and a quarantine area (virus vault) in which infected files are held.

LinkScanner

The patent pending LinkScanner technology acquired from Exploit Prevention Labs and built into most AVG products, provides real-time updated protection against exploits and drive-by downloads. LinkScanner includes: Search-Shield – a safe search component that places safety ratings next to each link in Google, Yahoo! and MSN search results; plus Active Surf-Shield – a safe surf component that scans the contents of a web site in real-time to ensure it's safe being opened.^[10] Concerns regarding web analytics have made LinkScanner a controversial component (see 'LinkScanner concerns' below).

LinkScanner concerns

When AVG 8.0 was first released, its LinkScanner safe search feature was shown to cause an increase in traffic on websites that appear high in search engine results pages. Since LinkScanner disguises the scans as coming from an Internet Explorer 6 browser when it prescans each site listed in the search results, we site usage logs showed incorrect and overinflated site visitor statistics. The prescanning of every link in search results also caused websites to transfer more data than usual, resulting in higher bandwidth usage for web site operators and slow performance for users.^[11] AVG initially said that site administrators would be able to filter the LinkScanner traffic out of their site statistics, leaving the problem of excess bandwidth usage still to be solved.^[12] Pay-per-click advertising was not affected by the increase in traffic.^[13]

AVG Online Shield

AVG Online Shield is a feature designed to check files and ensure that they are safe. AVG Online Shield also ensures the safety of exchanging files via instant messengers and VoIP clients.^[14]

In response to complaints, AVG announced that as of 9 July 2008 'Search-Shield will no longer scan each search result online for new exploits, which was causing the spikes that webmasters addressed with us',^[15] releasing a new build on that date that applies a local blacklist, then prefetches and scans only those links clicked on by the user.^[16]

Controversy

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As of 2014, there are numerous reports dating back to 2012 that the AVG SafeGuard Toolbar installs itself without the consent of the user, as a side effect of installing other applications. The toolbar program appears to cause significant RAM issues and can be considered an intrusive potentially unwanted program (PUP). Once installed, the AVG toolbar is virtually impossible to remove. The toolbar uninstaller does not function, instead re-installing the add-on if manually removed. Consequently, many discussions and blog posts have described complex procedures for removal of the AVG toolbar, each with very mixed results.^{[17][18][19][20][21][22]}

In September 2015, AVG announced that it would start tracking users for profit, analyzing their data for sale to the advertising industry. This measure received criticism from consumers, the press and security industry, as many users intended to use the software in order to protect themselves from spyware and would not expect the functions of spyware to be 'hidden' in security software.^[23]

In December 2015, the AVG Web TuneUp Google Chrome extension (automatically installed with AVG AntiVirus) was revealed to contain multiple critical security vulnerabilities.^[24] Most notably, Chrome users' browsing history could be exposed to any website, cookies from any site the user has visited could be read by an attacker, and trivial cross-site scripting (XSS) issues could allow any website to execute arbitrary code (as another domain).

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The XSS vulnerability allowed a user's mail from 'mail.google.com' to be read by any website, or financial information to be read from the user's online banking site. The AVG team fixed this by only allowing 'mysearch.avg.com' and 'webtuneup.avg.com' to execute these scripts. Despite this remediation, attackers could leverage any of these attacks if an XSS vulnerability was found on the AVG sites. As of April 2016, Web TuneUp was still not available for download from the AVG website.

Reception

AVG Antivirus Free 2012 was selected as PC Magazine Editors' Choice in the free antivirus category.^[25] AVG AntiVirus Free 2015 received the Editor Choice badge of SoftChamp.^[26]

See also

References

1. ^'AVG Antivirus Free'. web site. 19 February 2019. Retrieved 21 February 2019.
2. ^'AVG AntiVirus 2019 for Android Security FREE'. Google Play Store. 19 February 2019. Retrieved 21 February 2019.
3. ^'Avast Closes Acquisition of AVG Technologies'. Business Wire. 30 September 2016. Retrieved 31 October 2016.
4. ^'FREE 2016: Developer: Avast Software s.r.o.'Google Play. Retrieved 31 October 2016.
5. ^'AVG Technologies Celebrates 15 Years of Internet Security Success'. Avg.com. Archived from the original on 2 May 2009. Retrieved 22 November 2012.
6. ^'GRISOFT viert 15 jaar van successen met internetbeveiliging | AVG Nederland'. Avg.com. 5 December 2006. Archived from the original on 2 May 2009. Retrieved 22 November 2012.
7. ^'AVG Surpasses 200 Million Users Worldwide'. Now.avg.com. Retrieved 11 March 2015.
8. ^'Archived copy'. Archived from the original on 24 March 2017. Retrieved 28 April 2017.CS1 maint: archived copy as title (link)
9. ^'AVG ends support for Windows XP & Windows Vista'. AVG Blogs. AVG Technologies. 31 October 2018. Retrieved 30 January 2019.
10. ^'Veelgestelde vragen | AVG Nederland'. Avg.com. Retrieved 22 November 2012.
11. ^'AVG Disguises Fake Traffic As IE6'. Theregister.co.uk. Retrieved 22 November 2012.
12. ^'AVG update disguises LinkScanner traffic as IE6'. Techspot.com. Retrieved 22 November 2012.
13. ^'LinkScanner could be behind surge in web traffic'. virusbulletin.com. Retrieved 30 September 2018.
14. ^'AVG security features'. AVG.com. Retrieved 10 February 2015.
15. ^'AVG Responds to Fake Traffic Spikes'. Networkinstruments.wordpress.com. Retrieved 22 November 2012.
16. ^'Grisoft modifies its free AVG product after complaints'. News.cnet.com. Retrieved 22 November 2012.
17. ^''AVG Secure Search' is obviously a kind of malware that attaches itself to FF. Is Mozilla working on killing it?'. Retrieved 17 December 2015.
18. ^'AVG Toolbar & Secure Search: How do I remove it from my browser & PC?'. ReviverSoft Blog. Retrieved 17 December 2015.
19. ^'How to remove Nation Toolbar — Search.nation.com redirect (Removal) - Tech & Internet Security — News & Guides'. Retrieved 17 December 2015.
20. ^'How to Remove AVG SafeGuard Toolbar and AVG Secure Search'. Archived from the original on 9 January 2016. Retrieved 17 December 2015.
21. ^Completely Remove AVG safeguard toolbar
22. ^Emil Protalinski. 'AVG Security Toolbar is the worst foistware I've ever seen'. ZDNet. Retrieved 17 December 2015.
23. ^Beuth, Patrick. 'Antivirensoftware benimmt sich künftig wie Spyware'. ZEIT ONLINE. Retrieved 23 September 2015.
24. ^'Issue 675: AVG: 'Web TuneUP' extension multiple critical vulnerabilities'. 15 December 2015. Retrieved 29 December 2015.
25. ^Rubenking, Neil J. 'AVG Anti-Virus Free 2012 Review & Rating'. PCMag.com. Retrieved 22 November 2012.
26. ^'Download AVG AntiVirus Free'. SoftChamp.com. Retrieved 16 February 2015.

External links

A system that has a weak Windows login password or has not installed the security patches will be needlessly exposed to malicious codes or hacking attacks. Not only that, but even if the malicious codes are deleted using a vaccine loaded with the latest engine, the malicious codes can attack system vulnerabilities again to re-infect and damage the system. Therefore, in order not to be infected with malicious codes spreading through vulnerabilities in the system, please make sure that the latest security patches are applied, and that the password for the Windows login account cannot easily be discovered.

1. Password Settings for the Windows Login Account (Windows 7)

• 1. Select Windows [Start] > [Control Panel] > [User Account]
• 2. Select the account used.
• 3. Select [Change My Password] and replace the existing password by a new one which cannot be guessed easily. Please note that the new password should be a combination of letters, numbers and special characters so that your system cannot be easily infected with malicious codes, which can spread if the password is vulnerable.

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2. Apply Security Patches using Windows Update

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• 1. Select Windows [Start] > [All Programs] > [Windows Update]. Please note: When the Windows Update Page is connected and the “Security Alert” window pops up, select “Yes”. The “Security Alert” window will not pop up for users who have already applied Windows Update.
• 2. Click “Install updates” to update your system.
• 3. In some cases, a system restart may be required. If a message is displayed to tell you that the system needs to be restarted, please reboot, because the patches for security vulnerabilities will be implemented only after system rebooting.