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How to get rid of the notifications/ads delivered by the captcha4you.top site

Also Known As: Ads by captcha4you.top
Damage level: Medium

What kind of page is captcha4you[.]top?

Captcha4you[.]top is a rogue site designed to trick visitors into allowing it to deliver browser notification spam. Additionally, this webpage is capable of redirecting users to other (likely dubious/malicious) websites.

Our researchers discovered captcha4you[.]top while inspecting sites that use rogue advertising networks. It is noteworthy that redirects caused by the aforementioned pages are how most users access captcha4you[.]top and similar websites.

captcha4you[.]top pop-up redirects

Captcha4you[.]top overview

The behavior of rogue sites might depend on the visitor's IP address (geolocation). When we inspected captcha4you[.]top, it presented us with an image of a robot saying - "CLICK ALLOW TO CONFIRM THAT YOU ARE NOT A ROBOT!". This fake CAPTCHA verification is intended to lure visitors into enabling browser notification delivery.

These notifications/advertisements endorse various scams, untrustworthy/harmful sites and software, and even malware. Once we pressed the "Allow" button, it resulted in a redirect to a site running the "Chrome Search Contest 2022" scam.

In summary, via websites like captcha4you[.]top - users can experience system infections, serious privacy issues, financial losses, and even identity theft.

Threat Summary:
Name Ads by captcha4you.top
Threat Type Push notifications ads, Unwanted ads, Pop-up ads
Detection Names N/A (VirusTotal)
Serving IP Address 179.60.146.33
Observed Domains a.captcha4you[.]top; b.captcha4you[.]top; c.captcha4you[.]top; i.captcha4you[.]top; g.captcha4you[.]top; d.captcha4you[.]top; f.captcha4you[.]top; h.captcha4you[.]top; e.captcha4you[.]top
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, false claims within visited websites, 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.

Browser notification spam in general

We have inspected thousands of rogue sites; politicosta[.]bizlicktaughigme[.]comnews-kezana[.]cclpnottech[.]com, and jonne[.]club are merely some examples.

These webpages display browser notifications that promote deceptive/malicious material. Note that any legitimate products encountered through these advertisements are most likely endorsed in this manner by scammers abusing their affiliate programs to obtain illegitimate commissions.

How did captcha4you[.]top gain permission to deliver spam notifications?

Sites require user consent to deliver browser notifications. Hence, if you are seeing these ads from captcha4you[.]top - you've likely accessed this webpage and clicked "Allow", "Allow Notifications", or a similar option presented on it.

How to prevent deceptive sites from delivering spam notifications?

To avoid receiving unwanted browser notifications, do not enable dubious websites to display them (i.e., do not click "Allow", "Allow Notifications", etc.). Instead, we advise ignoring or denying notification delivery requests (i.e., pressing "Block", "Block Notifications", etc.).

Should your browser continuously force-open suspicious sites (e.g., captcha4you[.]top, etc.) - it might be caused by the presence of advertising-supported software (adware). If your computer is already infected with rogue applications, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.

Screenshots of notifications/adverts delivered by the captcha4you[.]top website:

Advertisement delivered by captcha4you[.]top site 1 Advertisement delivered by captcha4you[.]top site 2

Appearance of the captcha4you[.]top website (GIF):

captcha4you[.]top website appearance (GIF)

Video showing how to remove ads delivered by captcha4you[.]top using Combo Cleaner:

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer 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.

Frequently Asked Questions (FAQ)

Why am I seeing ads (browser notifications) delivered by captcha4you[.]top in the right lower corner of my desktop?

Websites cannot deliver browser notifications without user consent. Therefore, you have likely entered captcha4you[.]top and permitted it to display these advertisements (i.e., clicked "Allow", "Allow Notifications", etc.).

I have clicked on notification ads, is my computer infected?

No, clicking on a browser notification will not initiate any system infection process. However, the websites and software endorsed through these adverts can be deceptive/malicious and cause severe issues (including malware infections).

Is captcha4you[.]top a virus?

No, sites like captcha4you[.]top are not categorized as viruses, but they can promote virulent content. These websites typically promote online scams, unreliable/harmful applications, and malware.

Will Combo Cleaner remove captcha4you[.]top ads automatically or manual steps are still required?

Yes, Combo Cleaner will scan your computer and undo the permissions granted for the captcha4you[.]top website. Additionally, Combo Cleaner can restrict further access to this and other rogue, deceptive, and malicious webpages. Therefore, no extra steps will be necessary.

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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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Removal Instructions in other languages
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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