How to stop the procaptchahub.top webpage from delivering notifications/ads
Written by Tomas Meskauskas on (updated)
What kind of page is procaptchahub[.]top?
Procaptchahub[.]top is a rogue page designed to endorse browser notification spam and redirect visitors to different (likely untrustworthy/harmful) websites.
Users typically access webpages of this kind through redirects caused by sites employing rogue advertising networks. We discovered procaptchahub[.]top during a routine inspection of websites that use said networks.
Procaptchahub[.]top overview
The behavior of rogue sites (i.e., what they host and/or promote) might differ depending on the visitor's IP address/ geolocation.
When we investigated procaptchahub[.]top, we found two appearance variants. Both used fake CAPTCHA verification tests to trick visitors into clicking the "Allow" button – thus enabling the page to deliver browser notifications.
Rogue websites use their notifications to run intrusive ad campaigns. The delivered advertisements endorse online scams, unreliable/hazardous software, and even malware.
To summarize, through webpages like procaptchahub[.]top – users can experience system infections, severe privacy issues, financial losses, and identity theft.
Name | Ads by procaptchahub.top |
Threat Type | Push notifications ads, Unwanted ads, Pop-up ads |
Detection Names | Combo Cleaner (Malware), Fortinet (Phishing), G-Data (Malware), Sophos (Malware), alphaMountain.ai (Suspicious), Full List Of Detections (VirusTotal) |
Serving IP Address | 104.21.12.251 |
Observed Domains | a.procaptchahub[.]top; b.procaptchahub[.]top; d.procaptchahub[.]top; e.procaptchahub[.]top; f.procaptchahub[.]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. |
Browser notification spam in general
We have analyzed thousands of rogue sites; lacmeeftsurvey[.]space, advtgroup[.]com, and equaffism[.]com are merely a couple examples of our latest finds. Webpages of this kind display browser notifications that promote deceptive/malicious content.
It is pertinent to mention that while legitimate products or services may be encountered through these advertisements – they are unlikely to be endorsed by their actual developers or other official parties. It is most probable that this promotion is undertaken by scammers who abuse the content's affiliate programs to obtain illegitimate commissions.
How did procaptchahub[.]top gain permission to deliver spam notifications?
Websites need user consent to deliver browser notifications. Therefore, you have likely entered procaptchahub[.]top and permitted the ad delivery by pressing "Allow", "Allow Notifications", or a similar option presented on this webpage.
How to prevent deceptive sites from delivering spam notifications?
To avoid receiving unwanted browser notifications – do not enable questionable sites to deliver them (i.e., do not click "Allow", "Allow Notifications", etc.). Instead, ignore or deny notification delivery (i.e., press "Block", "Block Notifications", etc.).
Should your browser continuously generate redirects to suspicious websites – it could be due to adware installed on the device. If your computer is already infected with rogue applications, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.
Screenshot of a notification/advert delivered by the procaptchahub[.]top website:
Screenshot of procaptchahub[.]top website's alternative appearance:
Appearance of the procaptchahub[.]top website (GIF):
Video showing how to eliminate ads delivered by procaptchahub[.]top using Combo Cleaner:
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:
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Quick menu:
- What is Ads by procaptchahub.top?
- STEP 1. Remove spam notifications from Google Chrome
- STEP 2. Remove spam notifications from Google Chrome (Android)
- STEP 3. Remove spam notifications from Mozilla Firefox
- STEP 4. Remove spam notifications from Microsoft Edge
- STEP 5. Remove spam notifications from Safari (macOS)
Disable unwanted browser notifications:
Video showing how to disable web browser notifications:
Remove 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".
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).
Remove 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".
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).
Remove 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".
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).
Remove 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".
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).
Remove 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.
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)
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 procaptchahub[.]top in the right lower corner of my desktop?
Websites cannot display browser notifications without user consent. Hence, you've likely visited procaptchahub[.]top and selected "Allow", "Allow Notifications", or an analogous option.
I have clicked on notification ads, is my computer infected?
No, merely clicking on a browser notification will not initiate any malware download/installation processes. However, these adverts can endorse dangerous content capable of causing serious issues (including system infections).
Is procaptchahub[.]top a virus?
No, procaptchahub[.]top is not classified as a virus, but it can promote virulent content. Rogue websites push online scams, unreliable/hazardous software, and even malware.
Will Combo Cleaner remove procaptchahub[.]top ads automatically or manual steps are still required?
Yes, Combo Cleaner will scan your computer and revert the permissions granted to the procaptchahub[.]top page. It will also deny all further access to this and other rogue/malicious websites. Therefore, no additional steps will be necessary.
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