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Useful tools for online virus checkers

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#1 Terryala


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Posted 10 February 2011 - 08:20 PM

Useful tools for online virus checkers

Daniel Bachfeld

VirusTotal, the most popular virus checking service, uses 42 different anti-virus products to test files for infection. The normal procedure for using this site is as follows: a user downloads a suspicious file to his or her computer, goes to the VirusTotal website and then uploads the file. By the time he or she has done so, the user may already be deep in the mire ? either because the web site or downloaded file has set alarm bells ringing in their anti-virus software, or because it has exploited a vulnerability in their system. With the right tools, this can be avoided.

VirusTotal has created the VTZilla and VTchromizer plugins for Firefox and Chrome, respectively. They send the URL of a web page or file to be checked out directly to VirusTotal, which then downloads the web page or file so you don't have to. Both plugins add a 'Scan with VirusTotal' option to the menu that is opened when the user right-clicks on a link from within the browser.

Clicking on this option launches a new browser window which displays a report on the requested URL. VirusTotal uses six URL analysis tools from Firefox, G-Data, Google (Safebrowsing API), Opera, ParetoLogic and Phishtank to check whether a URL is known to be linked with any threats. This allows users to assess the risk of visiting a website beforehand.

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