Removal instructions for the notifications/ads delivered by centrumbook.com

What kind of page is centrumbook[.]com?

Our researchers discovered the centrumbook[.]com rogue page during a routine investigation of suspicious websites. It operates by promoting browser notification spam and redirecting visitors to other (likely untrustworthy/dangerous) sites.

Most users enter webpages like centrumbook[.]com through redirects caused by sites that employ rogue advertising networks.

Centrumbook[.]com overview

It must be mentioned that how rogue pages operate may vary depending on visitors' IP addresses (geolocations). In other words, this information might dictate the content endorsed on and through such sites.

When we visited the centrumbook[.]com webpage, it displayed an image of a purple robot beside text instructing to – "Click 'Allow' if you are not a robot". It must be stressed that this CAPTCHA verification is fake. Hence, by completing this bogus test – the user will unintentionally permit centrumbook[.]com to deliver browser notifications.

Once we pressed "Allow", it resulted in a redirect to a type of website usually used to promote adware, browser hijackers, and other potentially harmful software.

Rogue pages employ their notifications to run intrusive advertisement campaigns. The ads primarily push online scams, unreliable/hazardous software, and even malware.

In summary, through websites like centrumbook[.]com – users can experience system infections, serious privacy issues, financial losses, and identity theft.

Threat Summary:

Name	Ads by centrumbook.com
Threat Type	Push notifications ads, Unwanted ads, Pop-up ads
Detection Names	N/A (VirusTotal)
Serving IP Address	104.21.37.4
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. ▼ Download Combo Cleaner 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

Dating-universe[.]top, dariolelab[.]com, realatinusa[.]com, and buynads[.]com are merely a few examples of rogue sites that we have examined recently. These webpages display browser notifications that promote deceptive/malicious material.

Note that while legitimate content may be encountered via these advertisements – it is unlikely to be endorsed by its actual developers or other official parties. It is most probable that this promotion is performed by scammers who abuse a product's affiliate programs in order to obtain illegitimate commissions.

How did centrumbook[.]com gain permission to deliver spam notifications?

Since no website can deliver browsing notifications (adverts) without user consent, you have likely visited centrumbook[.]com and permitted their delivery by clicking "Allow", "Allow Notifications", or an analogous option displayed on this webpage.

It is pertinent to mention that rogue sites commonly used deception (e.g., fake CAPTCHA tests, clickbait, adult-oriented content, etc.) to entice visitors into enabling notifications.

How to prevent deceptive sites from delivering spam notifications?

To avoid receiving unwanted browser notifications – do not enable questionable websites to deliver them (i.e., do not press "Allow", "Allow Notifications", etc.). Instead, deny notification delivery (i.e., click "Block", "Block Notifications", etc.) or ignore such requests altogether.

Should your browser continuously force-open suspect webpages, it could be due to the presence of advertising-supported software (adware) 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.

Screenshots of notifications (ads) displayed by the centrumbook[.]com website:

Appearance of the centrumbook[.]com website (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:

• What is Ads by centrumbook.com?
• 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 centrumbook[.]com in the right lower corner of my desktop?

Websites can only display browser notifications with user permission. Hence, you have likely accessed the centrumbook[.]com page and selected "Allow", "Allow Notifications", or a similar option – thus enabling the notification/ad delivery.

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 advertisements can promote dangerous content capable of causing serious problems (including system infections).

Is centrumbook[.]com a virus?

No, websites like centrumbook[.]com are not classed as viruses, but they can endorse virulent content. Rogue webpages typically push online scams, unreliable/harmful software, and malware.

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

Yes, Combo Cleaner can scan systems and undo all the permissions given to the centrumbook[.]com site. Additionally, Combo Cleaner can block further access to this and other rogue, deceptive/scam, and malicious websites. Therefore, extra steps will be unnecessary.

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