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Best free online antivirus 2013: VirusTotal

The best online antivirus of 2013 is VirusTotal . This antivirus offers us a completely free service and available in several languages.

The functionality of this online antivirus ranges from file analysis (up to 32MB) to web page analysis. With it we can detect viruses, malware, worms, Trojans and all kinds of malicious files that can infect us.

Another functionality is to detect false positives, that is, when a file is recognized as malicious when in reality it is not.

The most outstanding features of this online antivirus:

VirusTotal is free.

The company VirusTotal is a subsidiary of Google and offers its service for free as long as it is not used commercially.

It has a large number of virus recognition engines.

It has 45 different antivirus engines , many of them renowned and with their virus bases always updated to date. The different antivirus are: Agnitum, AhnLab-V3, AntiVir, Antiy-AVL, Avast, AVG, BitDefender, ByteHero, CAT-QuickHeal, ClamAV, Commtouch, Comodo, DrWeb, Emsisoft, eSafe, ESET-NOD32, F-Prot, F -Secure, Fortinet, GData, Ikarus, Jiangmin, K7AntiVirus, Kaspersky, Kingsoft, Malwarebytes, McAfee, McAfee-GW-Edition, Microsoft, MicroWorld-eScan, NANO-Antivirus, Norman, nProtect, Panda, PCTools, Sophos, SUPERAntiSpyware, Symantec , TheHacker, TotalDefense, TrendMicro, TrendMicro-HouseCall, VBA32, VIPRE and ViRobot.

When the results detect a possible infection, VirusTotal also shows us the report that the real antivirus would give us .

Scan any file extension and URL.

This online antivirus analyzes any file extension either image or executable file for a possible infection. It also allows you to analyze a URL for malware, phishing or suspicious sites.

Characterization of the results.

A novel feature of this online antivirus is that it not only allows an online analysis of possible malicious files, but also allows the user to interact by adding comments about the file or voting on the danger of the file. This is very useful in case of false positives or files of unknown origin since some other user can provide information about the risks or even how to disinfect.

It offers an API.

VirusTotal offers us a free API to automate the tasks of analysis and detection of potentially dangerous files. It should be clarified that they have limited the number of analysis requests to 4 per minute, although if you are a security analyst or work for a research company you can contact them to get more requests per minute. The API works with HTTP requests using the POST method and the analysis response is returned in JSON format.

Offers a desktop application and Extension for FireFox.

We are provided with a desktop application to analyze files from our PC with two clicks, you can find information and download it here .

The extension for FireFox is called VTzilla and you can find it by clicking here .

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