How to remove cgre-defender.pro notifications (ads)
Notification SpamAlso Known As: Ads by cgre-defender.pro
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What kind of page is cgre-defender[.]pro?
Our research team discovered cgre-defender[.]pro while investigating dubious websites. The page uses a fake CAPTCHA to trick visitors into agreeing to receive browser notifications. Once permission is granted, cgre-defender[.]pro delivers fake security alerts that can expose users to online threats.
![cgre-defender[.]pro ads](/images/stories/screenshots202607/cgre-defender-pro-ads-main.jpg)
Cgre-defender[.]pro in detail
Cgre-defender[.]pro displays a fake CAPTCHA - a checkbox labeled "I'm not a robot" alongside a reCAPTCHA logo - with a message at the top of the page instructing visitors to click "Allow" to confirm they are not a robot. This is a deceptive lure. The page has no connection to Google's reCAPTCHA service.
Clicking the browser's "Allow" button is what actually grants cgre-defender[.]pro notification permissions - it does not "confirm" anything. It is also worth noting that sites like this often serve different content depending on the subdomain or URL path, so other visitors may encounter entirely different lures on the same domain.
Notifications from cgre-defender[.]pro are designed to look like Windows Security alerts. They claim the user's PC is at risk, that viruses have been detected, and that Windows Defender cannot address the threats. These fake alerts also contain spelling errors - a common sign that the message is fraudulent.
Interacting with these notifications can redirect users to tech support scam pages, fake antivirus websites, or phishing sites built to collect login credentials or payment details. Real security software - including Windows Defender - never communicates with users through browser notifications.
Notifications from pages like cgre-defender[.]pro may also promote survey scams, fake prize claims, dubious cryptocurrency platforms, or downloads that install unwanted or malicious software. Even where real products appear in these ads, they are typically promoted by scammers abusing affiliate programs to earn commissions.
If cgre-defender[.]pro has been allowed to send notifications, that permission should be revoked without delay. Continued exposure to these alerts risks financial losses, stolen credentials, malware infections, or account compromise.
| Name | Ads by cgre-defender.pro |
| Threat Type | Push notifications ads, Unwanted ads, Pop-up ads |
| Threat Status (cgre-defender[.]pro) | PCrisk Website Scanner Results |
| Serving IP Address | 172.67.203.127 |
| 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, 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 CleanerTo 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. |
More on similar pages
Users typically land on pages like cgre-defender[.]pro through several channels. These include clicking misleading elements on shady websites, redirects generated by adware installed on the device, and rogue advertising networks active on torrent sites, illegal streaming services, and similar low-quality platforms.
Spam notifications from other rogue websites can also chain into redirects, potentially exposing users to multiple pages in quick succession. Additional examples of websites similar to cgre-defender[.]pro are woonceome[.]com, digitalmeshweb[.]co.in, and corematrixpin[.]com.
How did cgre-defender[.]pro gain permission to deliver spam notifications?
Websites cannot display browser notifications without explicit permission from the user. If notifications from cgre-defender[.]pro are appearing on your screen, it means you previously visited the site and clicked "Allow" or a comparable option it presented in the browser prompt.
How to prevent deceptive sites from delivering spam notifications?
Any website asking you to click "Allow" to verify that you are not a robot, view a video, or access content is running a scam. When such a page appears, close it immediately or select "Block" to deny the notification request - never click "Allow".
If you are receiving unwanted notifications from cgre-defender[.]pro or other suspicious sources, run a scan with Combo Cleaner Antivirus for Windows to have them removed automatically.
Appearance of cgre-defender[.]pro website (GIF):
![cgre-defender[.]pro website appearance (GIF)](/images/stories/screenshots202607/cgre-defender-pro-ads-appearance.gif)
Notifications delivered by cgre-defender[.]pro:
![cgre-defender[.]pro notification](/images/stories/screenshots202607/cgre-defender-pro-ads-notification.jpg)
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 CleanerBy 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.
Quick menu:
- What is Ads by cgre-defender.pro?
- 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 cgre-defender[.]pro in the right lower corner of my desktop?
Only sites that have been explicitly permitted can send browser notifications. This means you likely visited cgre-defender[.]pro at some point and clicked "Allow" or a similar option displayed on the page, granting it permission to deliver notification spam.
I have clicked on notification ads, is my computer infected?
Clicking a browser notification alone is unlikely to directly infect your system. That said, the content these notifications lead to - phishing pages, fake software downloads, tech support scams - can cause real harm if interacted with further.
Is cgre-defender[.]pro a virus?
Cgre-defender[.]pro is not a virus in the traditional sense, but it is considered a threat. It promotes misleading notifications and can expose users to scams, harmful software, and other dangerous content.
Will Combo Cleaner remove cgre-defender[.]pro ads automatically or manual steps are still required?
Yes. Combo Cleaner will scan your system, revoke any permissions granted to cgre-defender[.]pro, and block all further access to this and similar rogue pages. No additional steps will be required on your part.
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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.
PCrisk security portal is brought by a company RCS LT.
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DonatePCrisk security portal is brought by a company RCS LT.
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