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How to stop captcha2020.com from being opened?

Also Known As: Ads by captcha2020.com
Damage level: Medium

What is captcha2020[.]com?

Captcha2020[.]com is the address of an untrustworthy web page that is designed to promote other pages of this kind, or to load dubious, deceptive content. The Internet is full of pages like this one. Some examples of pages that are similar or almost identical to captcha2020[.]com are withoughtc[.]top, uspetenti[.]top and settings-chrome[.]com.

It is important to mention that users do not visit such pages on purpose. Typically, users unintentionally open pages like captcha2020[.]com by clicking shady ads while visiting other unreliable websites. It is also common that browsers open unreliable pages without user interference.

It usually happens when browsers have some potentially unwanted application (PUA) installed on them.

captcha2020[.]com pop-up redirects

Depending on its visitors' geolocation, captcha2020[.]com loads dubious content or opens a couple of other unreliable websites. It is common that pages like captcha2020[.]com are used to promote download pages for browser hijackers, adware, various scam pages (e.g., "You've Made The 9.68-Billionth Search", "Pornographic Alert"), or other deceptive sites.

Therefore, neither the captcha2020[.]com page itself or pages that opens are trustworthy. It is important to mention that captcha2020[.]com asks for permission to show notifications.

Typically, if pages like this one are allowed to show their notifications, they start to serve annoying notifications with deceptive advertisements, links to potentially malicious pages, etc., in them. Also, captcha2020[.]com may ask its visitors for their mobile phone numbers, supposedly to receive a code that they would have to enter to prove that they are not robots.

No personal information should ever be entered on websites like captcha2020[.]com (or any other unreliable page). One of the reasons why browsers open shady sites (including pages like captcha2020[.]com) by themselves regularly is because they have some PUA installed on them.

It is important to mention that PUAs can be designed to collect IP addresses, geolocations, entered search queries, addresses of visited websites and other browsing data, or even personal, sensitive details. All or at least some of the data may be sold to third parties (potentially cyber criminals) or monetized in other ways.

Moreover, PUAs can be designed to serve banners, coupons, surveys, pop-ups, or other ads that, if clicked, would open potentially malicious pages or even download, install unwanted software by executing certain scripts.

Threat Summary:
Name Ads by captcha2020.com
Threat Type Push notifications ads, Unwanted ads, Pop-up ads
Detection Names CRDF (Malicious), CyRadar (Malicious), Kaspersky (Phishing), Sophos (Malware), Full List Of Detections (VirusTotal)
Serving IP Address 45.79.245.23
Symptoms Seeing advertisements not originating from the sites you are browsing. Intrusive pop-up ads. Decreased Internet browsing speed.
Distribution Methods Deceptive pop-up ads, potentially unwanted applications (adware)
Damage Decreased computer performance, browser tracking - privacy issues, possible additional malware infections.
Malware Removal (Windows)

To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
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To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.

Most PUAs are advertised as useful apps. Nevertheless, they are designed to gather various data, force users to visit questionable websites, display deceptive ads. In other words, they are designed only to generate revenue for their developers. PUAs can cause problems relating to privacy, browsing safety, their users are may even become victims identity theft.

Therefore, it is strongly advised to immediately uninstall PUAs that are installed on a browser or the operating system.

How did adware install on my computer?

Most users download or install potentially unwanted apps on their computers or web browsers through deceptive advertisements or together with some other software. Users cause unwanted downloads, installations via ads by clicking on ads that are capable of executing certain scripts.

Usually, ads of this type appear on unreliable pages. In other cases, users download, install PUAs when they are bundled with other (mainly free) programs: when downloaders, installers have "Custom", "Advanced" and other similar settings, or checkboxes and users do not change those settings (or untick checkboxes) before finishing downloads, installations.

How to avoid installation of potentially unwanted applications?

It is recommended not to use questionable websites, Peer-to-Peer networks (like torrent clients, eMule), third-party downloaders, installers as sources, tools for downloading or installing programs (or files). It is advisable to use official websites and direct download links only.

Downloaders, installers that have "Custom", "Advanced" and other settings or some checkboxes often include offers to download or install various PUAs. Therefore, downloads and installations should not be finished without checking them for bundled apps.

Furthermore, it is recommended to avoid clicking on ads that appear on questionable web pages. Some of those ads can be designed to run scripts that would download or even install unwanted software. Any unwanted apps (extensions, plug-ins or add-ons) that are already installed on a web browser should be removed.

The same should be done with programs of this kind that are installed on the operating system. If your computer is already infected with rogue applications, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.

Appearance of captcha2020[.]com website (GIF):

captcha2020[.]com website appearance (GIF)

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced IT skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
▼ DOWNLOAD Combo Cleaner By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.

Quick menu:

Disable unwanted browser notifications:

Video showing how to disable web browser notifications:

Google Chrome logoRemove spam notifications from Google Chrome:

Click the Menu button (three dots) on the right upper corner of the screen and select "Settings". In the opened window select "Privacy and security", then click on "Site Settings" and choose "Notifications".

Disable web browser notifications in Google Chrome (step 1)

In the "Allowed to send notifications" list search for websites that you want to stop receiving notifications from. Click on the three dots icon near the website URL and click "Block" or "Remove" (if you click "Remove" and visit the malicious site once more, it will ask to enable notifications again).

Disable web browser notifications in Google Chrome (step 2)

Android logoRemove spam notifications from Google Chrome (Android):

Tap the Menu button (three dots) on the right upper corner of the screen and select "Settings". Scroll down, tap on "Site settings" and then "Notifications".

Disable web browser notifications in Google Chrome - Android (step 1)

In the opened window, locate all suspicious URLs and tap on them one-by-one. Once the pop-up shows up, select either "Block" or "Remove" (if you tap "Remove" and visit the malicious site once more, it will ask to enable notifications again).

Disable web browser notifications in Google Chrome - Android (step 2)

Mozilla Firefox logoRemove spam notifications from Mozilla Firefox:

Click the Menu button (three bars) on the right upper corner of the screen. Select "Settings" and click on "Privacy & Security" in the toolbar on the left hand side of the screen. Scroll down to the "Permissions" section and click the "Settings" button next to "Notifications".

Disable web browser notifications in Mozilla Firefox (step 1)

In the opened window, locate all suspicious URLs and block them using the drop-down menu or either remove them by clicking "Remove Website" at the bottom of the window (if you click "Remove Website" and visit the malicious site once more, it will ask to enable notifications again).

Disable web browser notifications in Mozilla Firefox (step 2)

Microsoft Edge logoRemove spam notifications from Microsoft Edge:

Click the menu button (three dots) on the right upper corner of the Edge window and select "Settings". Click on "Cookies and site permissions" in the toolbar on the left hand side of the screen and select "Notifications".

Disable web browser notifications in Microsoft Edge (step 1)

Click three dots on the right hand side of each suspicious URL under "Allow" section and click "Block" or "Remove" (if you click "Remove" and visit the malicious site once more, it will ask to enable notifications again).

Disable web browser notifications in Microsoft Edge (step 2)

Safari logoRemove spam notifications from Safari (macOS):

Click "Safari" button on the left upper corner of the screen and select "Preferences...". Select the "Websites" tab and then select "Notifications" section on the left pane.

Disable web browser notifications in Safari - macOS (step 1)

Check for suspicious URLs and apply the "Deny" option using the drop-down menu or either remove them by clicking "Remove" at the bottom of the window (if you click "Remove" and visit the malicious site once more, it will ask to enable notifications again)

Disable web browser notifications in Safari - macOS (step 2)

How to avoid browser notification spam?

Internet users should be very skeptical when being asked to allow notifications. While this is a useful feature that allows you to receive timely news from websites you like, deceptive marketers frequently abuse it.

Only allow notifications from websites that you fully trust. For added security - use an anti-malware application with a real-time web browsing monitor to block shady websites that tries to trick you into allowing spam notifications. We recommend using Combo Cleaner Antivirus for Windows.

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About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Software uninstall instructions
Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

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