Viruses and malware

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Owners of resources, placing advertisements in such formats, should be prepared for a sudden collapse of positions in the search results. This can happen after several months of unpunished use of PopUnder, ClickUnder or PopUp as a result of falling under the algorithm filter or a bad mood of one of the assessors.

Cryptocurrency mining

The idea of ​​using visitors' capacities to mine cryptocurrency appeared a couple of years ago and was very popular at one time. Many people started installing cryptominers on their websites - special programs that allow you to earn money by generating cryptocoins.

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It is difficult to call this type of earnings reliable and highly profitable, but some portals still do not refuse to use cryptominers. Google is neutral about them, but Yandex's position is unambiguous: cryptocurrency mining is a deception of site visitors, and this should be punished.

It is possible to install a script on your site without your knowledge. Common options:

embedding the site administrator miner;

implementation through zeroed and questionable plugins;

by hacking the site.

Clickjacking

Another fraudulent technology that makes the user perform actions without their knowledge. This could include joining communities and groups on social networks, transferring personal data, signing up for subscriptions, and making purchases.

Yandex has been fighting clickjacking since 2016. If your site is suspected of using this technology, you will receive a corresponding notification in Webmaster, and the resource's positions will event planner email list drop sharply. This is especially unpleasant if you have nothing to do with the deception, but simply received the script in one of the possible ways:

through infected themes and plugins;

together with third-party scripts;

from viruses and malware;

as a result of direct installation on the FTP server.


No website is immune to the risk of catching a virus. In addition, ill-wishers can introduce malicious files and scripts. For Yandex, any infection is a signal to lower the position of such a resource.

There are three ways to catch a virus:

via the administrator's computer;

as a result of a hacker attack;

due to vulnerabilities in themes, plugins, WordPress core.

Security plugins significantly reduce the risk of infection, so their use is mandatory.

False alarm

Yandex may mistake a completely safe code used in some plugins for a virus or malware. For the robot, this is an ironclad reason to apply a filter and remove the page from the index. For example, this happens with the image display plugin.

To identify the plugin that caused the sanctions, download the site to your computer and scan it with Aibolit (https://revisium.com/ai/). The analysis will show the location of potentially infected files, as well as their belonging to a specific plugin or theme.