"Red Card": what is behind the warning of malware?

Hi, Habr! If you are using Google Chrome or Google Search, then you could almost certainly see the warning “Be careful, malicious software” when opening some sites. For the first time such messages appeared in 2006.


^{Actual malware warning on the site}

With them, Safe Browsing Google protects users from malware infection and phishing attacks.

A page with such a warning is designed for ordinary users to whom the details are not very interesting: the main thing is that they were protected from dangerous content. But advanced users and owners of a blocked resource have different needs: how can they find out why the site is considered unsafe?
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Especially for this, we present a new section Safe Browsing: the status of the site , which is in the Report on the availability of services and data. A new section has replaced the safe browsing diagnostic page . The optimized interface contains a more understandable explanation of the problems, including detailed information about the sites that host unwanted software . We hope this new product will be useful for both advanced users who are aware of all the risks, but for some reason want to visit the site from the “dangerous list”, and webmasters.


^{Report on the availability of services and data}

Often, the site is considered dangerous due to malicious content downloaded by users, or temporary infection. As soon as the webmaster or the site owner deletes such content, the site status in the Safe Browsing section will change. With the help of the new report, you can easily check the security of your sites: whether the content is naughty, giving users unpleasant surprises. However, it will be much safer to create an account and attach your website to the Search Console tool. In this case, a message about the detection of malware will come to you automatically. The same goes for Google Analytics account . Notification of the infection will come and there.


^{Current Phishing Site Warning}

More about finding and fixing similar problems, we wrote not so long ago on Habré . The reasons for studying the site closely in a post are, of course, different, but the troubleshooting techniques are similar.

We do everything to ensure that the Internet is safe and convenient. Verify this on your own by reviewing the section on site status in the Report on the availability of services and data .