What is adware? For those who are worried about frequent advertisement display. We also introduce how to delete

Adware is installed on an infected computer's browser.Software that forces advertisements to appearAbout. In addition, the damage is not only caused by displaying advertisements, but also by collecting user information and disseminating it to external parties, or asking for unfair monetary payments, so be careful. This article will help you use the Internet safely and comfortably.Measures to remove adware and prevent infectionI'd like to introduce_______

What is adware?

Adware is software designed to display advertisements. When infected with adware,Forcibly displaying advertisements with content that the user is not interested in or collecting information without consentTherefore, adware is often classified as malicious software "malware."

How do you get infected?

The most common way of infection isIt is included when you download free software., this is the case.

When proceeding with the download, if you press buttons such as "Next" without carefully checking the displayed contents,I consented to the download without knowing it.You may. Furthermore, if you can select the installation mode, select ``Automatic installation'' or ``Express installation'' instead of Custom.Possibility of introducing adwareThere is also.

As a result, users may not be aware that adware has been installed, but ads that are adult-oriented, sexually irritating, or requesting the purchase of software are often and forcefully displayed, making users feel uncomfortable or interrupting their work. It may be done.

Additionally, adware can record users' advertisements and site browsing history, use it to collect data, and potentially leak it to external parties.

When infected with adware

The degree of damage caused by adware varies. Some of them simply display advertisements, while others are malicious, asking users to purchase software with dubious warnings, or leaking the information of users who use the advertisements.

In other bad cases,Rewriting the default browser home screen URL or changing the link destination URL without permission.and redirects you to a non-genuine advertising site. As a result, your computer may become infected with malicious programs.

Sites that are famous for rewriting your browser and redirecting you to them are:"Babylon Search" "Delta Search" "Hao123"Etc. Google and Yahoo! If you were to open the site, but a site like this appears, it is most likely the work of adware.

In addition, as a malicious item caused by adware,Toolbar display on browserthere is. By displaying multiple toolbars on the browser that are not intended by the user, the displayed area of ​​the browser is reduced and the scope of work is narrowed.

Characteristics of adware

In the previous chapter, we introduced the effects of adware and the damage caused by infection.

However, adware is difficult to deal with due to its characteristic symptoms. This is because adware simply displays advertisements with general content, or requests consent for advertisements to be displayed in advance.Low illegality and difficult to judge as maliciousThis is because some items may pass through the security system.

Thus, due to the nature of the action,Difficult to identify as a threat with general antivirus securityThis can be said to be a characteristic of adware.

In the next chapter, we will explain how to remove advertisements caused by adware and countermeasures against infection.

How to remove adware

How to remove infected adwareInstall dedicated security softwareis the most common. For the reasons mentioned above, adware requires separate measures from other malware, but these days, so-called anti-virus software and spyware removal software often include adware measures. Please check the range.

If the infection becomes complex and cannot be removed even with security software, you may need to initialize your computer. If you initialize your computer, data stored on the hard disk will be lost.It's safe to take frequent backupsis.

How to prevent adware infections

From here, we will introduce measures to prevent adware infections.

Pay attention to how you download free software

While downloading free software, you may have unknowingly agreed to download adware. If there is a mode such as "Automatic installation" or "Express installation", be sure to select "Custom installation" and make sure that unnecessary software is not included.

Only download software from trusted sites

Avoid downloading software from suspicious sites. Even if the software is well-known, it may be fake if the site is not legitimate. Please be sure to download from reliable and official sites .

however,Cases of official websites and software being tampered with have become a hot topic in recent years.Don't be rest assured just because it's official; be sure to carefully check that it's a reliable site or software.

Don't panic if you see a warning message

Even if a warning message saying "Spyware has been detected on your computer" appears, it may be a disguised adware rather than a legitimate security software.
Clicking on the warning screen unnecessarily may lead to new secondary damage, so first disconnect from the network.

It is important not to ignore signs of infection

How was it? As mentioned above, some adware is less illegal and difficult to identify as malicious, so it may pass through your security system. If you ignore a situation that is just a minor inconvenience, it may lead to more serious situations such as information leaks, unreasonable demands for money, or other malware infections.If you see any signs of infection, take measures as soon as possible.

[Reference site]
・How to remove adware that displays ads without permission and 3 preventive measures │Norton
・5 spyware countermeasures for computer users │IPA