Virus detection

Editor: Marina Dolgova 1582 3 min Audio

There are lots of tools, antiviruses, utilities and various scanners on the Internet and it can be quite hard to choose the most reliable amongst them. In this article we describe different online tools and other ways of virus detection.

1. Online scanners:

  • Sucuri - a very popular, accurate and free online virus and malware scanner.
  • Comodo Web Inspector - an online antivirus and malware scanner. You can check the symptoms of malware or virus "infection" and, if any of them is applicable for your site, fix it for free.
  • VirusTotal - this tool is a bit different. It checks whether any of the most popular antiviruses have marked your website as a suspicious one (it means that it contains viruses and was added to the antivirus database to prevent users from visiting it).
  • Quttera - you can scan your website for free, however, it is available only for sites built using popular CMSs such as WordPress, Jooma!, Magento, DNN, SharePoint, Drupal, and vBulletin. This tool provides a detailed report that includes the list of malicious, suspicious and potentially suspicious files, iframes, external links etc.

We recommend using two-three of the above-mentioned scanners to ensure that nothing gets missed. The latter can happen when, for instance, a new virus had been discovered but it was added only to the database of the first antivirus, and not the second one.

2. Google tools

In case you did not add your website to Google Webmaster Tools, we highly recommend to do it as soon as possible as it can detect viruses and malware on your website. Apart from this, it has a lot of different features. The instruction on how to use Google Webmaster Tools can be found here.

Additionally, Google offers GoogleSafeBrowsing. It is also a virus and malware scanner. To scan your website, you need to follow the link, enter your domain name (or URL-address) and hit the magnifier (search) icon.

Offline scan

We recommend to scan your website files offline because certain viruses may be inactive or hidden. It is very hard to detect such viruses. An online scanner can just consider these files normal (not infected).

Firstly, you need download all of your website files (or create a backup of them, download it and then unpack it to a folder on your PC).

Note! Do not open or edit any of your website files on your PC, they may have been already infected.

Then you need to scan all of the files with an antivirus, for example ClamAV. It is one of the best free antiviruses. It’s virus database is updated every 4 hours. It can be installed on your PC or your control panel. It’s main advantage is its versatility - it’s available for any OS: Linux, BSD or Windows.

Note! If you have an antivirus already installed on your PC, make sure that it does not conflict with the one that you’re going to use to scan the website files. This situation should not occur, however, if it does, please let us know so we can update the article.

After all of the viruses were detected and removed, there are no guarantees that your website will not be infected once again. To prevent viruses from gaining access to your files, you need to find the vulnerability and to enhance your website security.

In case you know any others ways of detecting viruses, you can share them in the comments section and we will gladly add them to our article. If you have any questions, you are welcome to leave a comment as well and our experts will answer them as soon as possible.

Marina Dolgova
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