Comcast Cable Communications congratulations virus: what it is and how to remove it
Comcast Cable Communications congratulations is a scam that users might encounter at any time when they browse the web via Google Chrome, Mozilla Firefox, Safari, or another web browser. Crooks use social engineering in order to make the fake pop-up more believable and place in on various malicious and dubious websites across the web.
Facts checked October 6, 2026. Removal steps tested on Windows 11 (26H2) and checked against Microsoft's and the browser makers' current documentation. Sections marked as our earlier report are the original text: they describe the threat as it was then and have not been reviewed since. The 2026 status, the removal steps and the questions are current.
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Comcast Cable Communications congratulations virus: summary
| Distribution | Users can encounter Comcast fake alert on malicious websites during their browsing sessions, or after being redirected by adware, which is distributed via software bundles, fake updates and bogus virus notification prompts |
|---|---|
| Name | Comcast Cable Communications congratulations virus |
| Type | Survey scam, adware |
| Related | Comcast Cable Warning Alert |
| Symptoms | The pop-up message shows up seemingly out of nowhere and claims that visitors are eligible to receive a $1000 Walmart Gift Card |
| Associated risks | Installation of potentially unwanted programs and malware, credit card details or other personal data disclosure to cybercriminals, financial losses |
| Removal | Scan the PC with security software to find and remove the malware and anything installed with it. Fortect scans Windows for malware and repairs the system files and settings it damaged. Remove it nowTo use the full-featured product, you have to purchase a license for Fortect. The scan is free. |
Show 6 more facts
| Detection names | No Microsoft detection name is known |
|---|---|
| Damage | Not recorded in the old report |
| Evidence | 4 write-ups by security sites; details still limited |
| Domains | dieviren[.]de |
| First seen | 23 July 2020 |
| Facts checked | 6 October 2026 |
What the Comcast Cable Communications congratulations virus page looks like
Dear client Comcast Cable Communications inc., congratulations!
We would like to thank you for your loyalty to Comcast Cable Communications inc., and thus we offer you an exclusive chance to get a Walmart $1000 Gift Card today - December 19 (Wednesday), 2018. All you have to do is choose the correct gift box to get started. Good luck!
Is the Comcast Cable Communications congratulations virus prize real?
- Address:
dieviren[.]de
From our report of Jul 2020 · not reviewed since
Learn to recognize online fraud and avoid potentially unwanted programs
Scams were around for much longer than the internet existed, so there is no surprise that this practice was transferred to the online sphere successfully.
On the internet, anyone can be anonymous, which also increases the chances of people engaging in malicious online activities, such as money extortion or ad fraud, illegal data collection, and much more. Security experts from dieviren.de warned users about online dangers long ago, yet they still fall victim to cyberattacks on online scams.
To protect yourself from monetary losses, malware infections, and other unwanted consequences, you should be aware of techniques that cybercriminals use in order to fulfill their malicious deeds. Here are some tips that could help you:
- Install robust security software which can detect online threats in real-time;
- If possible, download apps from official sources only;
- During the installation of freeware, always pick Advanced/Custom settings instead of Recommended/Quick ones;
- Never trust claims that your computer is infected with malware or that something is missing (Flash Player);
- Before entering your information online, ensure that the source is reputable;
- Do not purchase anything from suspicious retailers or shady-looking sites;
- Do not download software cracks, torrent files, and similar dubious content.
From our report of Jul 2020 · not reviewed since
More from our earlier report on Comcast Cable Communications congratulations virus
- To get rid of unwanted popups and unwanted notifications, you should uninstall a potentially unwanted program from your device and clear browser cache/data or reset the browser
- You are one of the 100 users we have selected.
- You could receive an Apple iPhone XS, Samsung Galaxy S10, Walmart $1000 Gift Card, Visa $1000 Gift Card or 3 years of free membership to Netflix.
What the Comcast Cable Communications congratulations virus scammers want
From our report of Jul 2020 · not reviewed since
Comcast Cable Communications congratulations virus - a survey scam that attempts to scam you into providing your personal information
Comcast Cable Communications congratulations is a scam that users might encounter at any time when they browse the web via Google Chrome, Mozilla Firefox, Safari, or another web browser.
Crooks use social engineering in order to make the fake pop-up more believable and place in on various malicious and dubious websites across the web.
Comcast popup claims that visitors are eligible to receive an expensive gift, such as Walmart $1000 Gift Card, as long as they choose a correct gift box.
However, as soon as they proceed, users will be asked to provide their credit card details, which can later be compromised by cybercriminals. Therefore, it is important to ignore the Comcast Cable Communications congratulations virus prompt and never prove the information that is asked for.
Comcast Corporation is a telecommunications company that provides cable television, telephone, and internet service for millions of American users. Thus, it is evident that the scam has nothing to do with the tech giant, and is only trying to use its name in order to make a fake pop-up more believable.
Malicious actors often employ familiar names, logos, formatting, and other attributes of large companies such as Google, Apple, Microsoft, and many others. Since Comcast is so huge, scammers attempting to use its name in their malicious messages was just a question of time. Comcast Cable Communications congratulations virus is just one of many scams that attempts to abuse human psychology to reach its petty goals.
Users might encounter the Comcast survey popup due to one of the three reasons, which include:
As a general rule, the first two cases should not pose any huge risks to the visitors, as long as they do not interact with the contents of the notification. However, to remove Comcast Cable Communications congratulations virus, in case the unwanted browser activity is caused by adware or malware, additional steps should be taken in order to clean the device from threats.
For example, to complete Comcast Cable Communications congratulations virus removal, users should scan their machines with anti-malware tools and reset their browsers.
Comcast Cable Communications congratulations pop-up message that users encounter looks as following:
There is also a very similar scam floating around the web that imitates the trade name of Comcast Xfinity. It is also known as a "Dear Xfinity customer" popup and offers a wide array of alleged prizes, such as a free iPhone or a 3 year Netflix subscription:
As mentioned above, malicious actors make use of social engineering techniques in order to make users proceed with the offer. Those who never encountered online scams before might believe that they could receive an expensive reward. However, Comcast Cable Communications congratulations popup is just a scam that should not be trusted.
In case you proceed and fill in the survey and click on seemingly "correct" boxes, you will be redirected to a page which would look like one you see at the checkout when purchasing something online.
Crooks will come up with some type of excuse to ask you to provide your credit card details (for example, to "verify" that your card is active or checking your geolocation), and then use it as they please.
As a result, Comcast Cable Communications congratulations scam can result in monetary losses, sensitive data compromise, identity theft, and other privacy issues. Thus, never engage with notifications that promise you expensive gifts (5 Billionth Search, Amazon Gift Card scam, You've Been Selected To Test iPhone 9 scam, etc.), for free as, what sounds too good to be true, usually is.
- After clicking on a malicious link on a random website;
- After accessing a website that uses background redirect scripts;
- Being redirected by adware/malware.


How to get rid of the Comcast Cable Communications congratulations virus pages
There is no prize.
Close the page, stop the notifications, and protect your card if you entered it.
Which browser shows the ads?
Step 1: Remove dieviren[.]de from Chrome's notification list
Open More (the three dots) > Settings > Privacy and security > Site settings > Notifications, or paste
chrome://settings/content/notificationsinto the address bar.Under Allowed to send notifications, open the menu next to
dieviren[.]deand choose Remove or Block, and do the same for any other address you do not recognise.Next to Not allowed to send notifications, click Add and enter dieviren[.]de, so the site cannot ask again. The menus are the same in Chrome on Windows 11 and Windows 10, and each Chrome profile keeps its own list.

Chrome on Windows 11: Settings > Privacy and security > Site settings > Notifications. Full procedure with screenshots: Stop website notifications and pop-ups
Instructions for Google Chrome
Remove from Google Chrome
Delete malicious extensions from Google Chrome:
- Open Google Chrome, click on the Menu (three vertical dots at the top-right corner) and select More tools > Extensions.
- In the newly opened window, you will see all the installed extensions. Uninstall all suspicious extensions related to the unwanted program by clicking Remove.

Clear cache and web data from Chrome:
- Click on Menu and pick Settings.
- Under Privacy and security, select Clear browsing data.
- Select Browsing history, Cookies and other site data, as well as Cached images and files.
- Click Clear data.

Change your homepage:
- Click menu and choose Settings.
- Look for a suspicious site in the On startup section.
- Click on Open a specific or set of pages and click on three dots to find the Remove option.
Reset Google Chrome:
If the previous methods did not help you, reset Google Chrome to eliminate all the unwanted components:
- Click on Menu and select Settings.
- In the Settings, scroll down and click Advanced.
- Scroll down and locate Reset and clean up section.
- Now click Restore settings to their original defaults.
- Confirm with Reset settings.

Step 1: Remove dieviren[.]de from Edge's notification list
Edge stores its own permission list, separate from Chrome's, and it is often the browser behind these pop-ups on Windows 11 and Windows 10.
Go to Settings > Privacy, search, and services > Site permissions > All permissions > Notifications, or paste
edge://settings/content/notifications. Removedieviren[.]defrom Allowed, then add it under Not allowed to send notifications. Notifications that show the Edge logo come from this list.
Edge on Windows 11: Site permissions > All permissions > Notifications. Full procedure with screenshots: Stop website notifications and pop-ups
Instructions for Microsoft Edge
Remove from Microsoft Edge
Delete unwanted extensions from MS Edge:
- Select Menu (three horizontal dots at the top-right of the browser window) and pick Extensions.
- From the list, pick the extension and click on the Gear icon.
- Click Remove.

Clear cookies and other browser data:
- Click on the Menu (three horizontal dots at the top-right of the browser window) and select Settings > Privacy, search, and services..
- Under Clear browsing data, pick Choose what to clear.
- Select Cookies and other site data and Cached images and files. (apart from passwords, although you might want to include Media licenses as well, if applicable) and click on Clear.

Restore new tab and homepage settings:
- Click the menu icon and choose Settings.
- Then find On startup section.
- Click Remove next to any suspicious startup page.
Reset MS Edge if the above steps did not work:
- Press on Ctrl + Shift + Esc to open Task Manager.
- Click on More details arrow at the bottom of the window.
- Select Details tab.
- Now scroll down and locate every entry with Microsoft Edge name in it. Right-click on each of them and select End Task to stop MS Edge from running.

Delete extensions from MS Edge (Chromium):
- Open Edge and click select Settings > Extensions.
- Delete unwanted extensions by clicking Remove.

Clear cache and site data:
- Click on Menu and go to Settings.
- Select Privacy, search and services.
- Under Clear browsing data, pick Choose what to clear.
- Under Time range, pick All time.
- Select Clear now.

Reset Chromium-based MS Edge:
- Click on Menu and select Settings.
- On the left side, pick Reset settings.
- Select Restore settings to their default values.
- Confirm with Reset.
- This will disable extensions and reset startup pages but will not delete bookmarks, saved passwords, or browsing history.

Step 1: Remove dieviren[.]de from Firefox's notification permissions
In Firefox the permission sits in Settings > Permissions and data > Notifications (in older versions Privacy & Security > Notifications > Settings). Select
dieviren[.]dein the list, click Remove Website, and confirm with Save Changes.Firefox only shows these notifications while it is open, so if they stopped after closing Firefox, this is the browser to clean. The steps are the same on Windows 11 and Windows 10.

Firefox on Windows 11: the Notification Permissions window. Full procedure with screenshots: Stop website notifications and pop-ups
Instructions for Mozilla Firefox
Remove from Mozilla Firefox (FF)
Some PUPs might leave traces within web browsers. They proceed on tracking your online activities and might still engage in redirects, ads, and so on. To stop this, you could reset Mozilla Firefox as follows:
Remove dangerous extensions:
- Open Mozilla Firefox browser and click on the Menu (three horizontal lines at the top-right of the window).
- Select Add-ons.
- In here, select the unwanted extension and click Remove.

Reset the homepage:
- Click three horizontal lines at the top right corner to open the menu.
- Choose Settings.
- Under Home, set your preferred homepage and new tab settings.
Clear cookies and site data:
- Click Menu and pick Settings.
- Go to Privacy & Security section.
- Scroll down to locate Cookies and Site Data.
- Click on Clear Data...
- Select Cookies and Site Data and Temporary cached files and pages, then click Clear.

Reset Mozilla Firefox
If clearing the browser as explained above did not help, reset Mozilla Firefox:
- Open Mozilla Firefox browser and click the Menu.
- Go to Help and then choose Troubleshooting Information.

- Under Give Firefox a tune up section, click on Refresh Firefox...
- Once the pop-up shows up, confirm the action by pressing on Refresh Firefox.

Our tested steps are for Windows 11 and 10. For Safari (Mac), use the instructions below.
Instructions for Safari (Mac)
Delete from Safari
Remove dangerous extensions:
- Open Safari, click Safari in the menu at the top-left of the screen, and select Preferences.
- Go to the Extensions tab, look for any suspicious entries, and click Uninstall to remove them.

Clear history and website data:
- Click Safari in the menu and pick Clear History.
- Set Clear to all history and confirm with Clear History.

Reset Safari:
- Click Safari in the menu and select Preferences > Advanced.
- Enable Show Develop menu in menu bar.
- From the menu bar, click Develop and select Empty Caches.

Delete from macOS
Remove the unwanted application:
- From the menu bar, select Go > Applications.
- In the Applications folder, look for any suspicious entries, then drag them to Trash (or right-click and pick Move to Trash).

Delete leftover files and folders:
- Select Go > Go to Folder.
- Enter /Library/Application Support and remove any suspicious folders related to the unwanted program.
- Repeat the same check in the /Library/LaunchAgents and /Library/LaunchDaemons folders, deleting any suspicious entries.

- Finally, empty the Trash to permanently remove the leftovers.
Then, whichever browser you use
Step 2: Close the page without touching its buttons
The warning is a web page, not Windows, so closing the browser ends it. If the page blocks the browser or goes full screen, press Esc first, then end the browser in Task Manager (Ctrl + Shift + Esc).
Start the browser again without restoring the session, and do not follow any instruction the page gave. On Windows 11 and Windows 10 the steps are identical.
Full procedure with screenshots: Close a frozen app (Task Manager, Force Quit) On uGetFix
Step 3: Block the card if you entered it
If you typed card details on the page, call the number on the back of the card and ask the bank to block it and issue a new one.
Ask about every charge from the last days, including small ones, because a test payment of one or two units usually comes first.
Request a chargeback for anything you did not authorise. Do this by phone, not from a link in the message, on a phone or on a Windows 11 or Windows 10 PC.
Full procedure with screenshots: What to do after paying a scammer
More removal instructions
For programs installed on the PC and older browsers. Open the one you need.
Comcast Cable Communications congratulations virus removal guide
Many users believe that the Comcast Cable Communications congratulations is a virus, although this is only partly true.
In reality, the redirects could be caused by an adware infection. In such a case, you would experience additional symptoms, such as intrusive ads on all visited sites, unauthorized web browser settings changes, sponsored links inserted into search results, and more.
Nevertheless, the adware can be relatively stealthy and, for example, engage in background connections that would not be visible to the user. Thus, it is always best to check the system with anti-malware software to ensure a full Comcast Cable Communications congratulations virus removal.
Note that not all security applications are capable of flagging all PUPs. In such a case, you should remove Comcast Cable Communications congratulations virus manually.
Uninstall from Windows
You can remove Comcast Cable Communications congratulations virus by uninstalling suspicious apps:
Uninstall from Windows 10/8:
- Type Control Panel into the Windows search box and open the result.
- Under Programs, select Uninstall a program.

Uninstall from Windows 7/XP:
- Click on Windows Start > Control Panel (Windows XP users should click on Add/Remove Programs).
- In Control Panel, select Programs > Uninstall a program.

Remove the unwanted program:
- In the Programs and Features window, look for any recently installed suspicious entries, select them, and click Uninstall.
- If User Account Control appears, click Yes to confirm, then complete the removal.

Reset Internet Explorer
Remove dangerous add-ons:
- Open Internet Explorer, click on the Gear icon (IE menu) on the top-right corner of the browser
- Pick Manage Add-ons.
- You will see a Manage Add-ons window. Here, look for suspicious plugins. Click on these entries and select Disable.

Change your homepage if it was altered:
- Open IE and click on the Gear icon.
- Select Internet Options.
- In the General tab, delete the Home page address and replace it by your preferred one (for example, Google.com).
- Click Apply and then select OK.

Delete temporary files:
- Press on the Gear icon and select Internet Options.
- Under Browsing history, click Delete...
- Select relevant fields and press Delete.

Reset Internet Explorer:
- Click on Gear icon > Internet options and select Advanced tab.
- Select Reset.
- In the new window, check Delete personal settings and select Reset.

Choose a proper web browser and improve your safety with a VPN tool
Online spying has got momentum in recent years and people are getting more and more interested in how to protect their privacy online.
One of the basic means to add a layer of security - choose the most private and secure web browser. Although web browsers can't grant full privacy protection and security, some of them are much better at sandboxing, HTTPS upgrading, active content blocking, tracking blocking, phishing protection, and similar privacy-oriented features.
However, if you want true anonymity, we suggest you employ a powerful VPN - it can encrypt all the traffic that comes and goes out of your computer, preventing tracking completely.
Lost your files? Use data recovery software
While some files located on any computer are replaceable or useless, others can be extremely valuable.
Family photos, work documents, school projects - these are types of files that we don't want to lose. Unfortunately, there are many ways how unexpected data loss can occur:
- power cuts
- Blue Screen of Death errors
- hardware failures
- crypto-malware attack
- even accidental deletion
To ensure that all the files remain intact, you should prepare regular data backups. You can choose cloud-based or physical copies you could restore from later in case of a disaster. If your backups were lost as well or you never bothered to prepare any, can be your only hope to retrieve your invaluable files.
Questions about Comcast Cable Communications congratulations virus
Did the "Dear client Comcast Cable Communications inc., congratulations!" pop-up really find a virus?
It did not find anything, because a web page has no way to look at your files. The scan animation, the number of threats and the warning "Dear client Comcast Cable Communications inc., congratulations!" are part of the page and are the same for everyone who lands on it.
What the pop-up does tell you is that your browser was sent to a scam page, either through an ad, a redirect or a notification permission. That source is worth removing.
For a real answer about infections, run a scan in Windows Security or another antivirus you installed yourself, not one offered by the page. If the real scan finds nothing and the page stops after you clean up notifications and extensions, you are done.
What if I called the number on the "Dear client Comcast Cable Communications inc., congratulations!" page?
Hang up if you are still on the call, and do not let anyone connect to the PC. If you already allowed a remote session, disconnect the PC from the internet and uninstall the remote-access tool they asked for, such as AnyDesk or a similar program.
Assume they saw everything on the screen. From another device, change the passwords you typed during or after the call, starting with e-mail and banking. If you paid by card or gift card, contact the bank or the card issuer the same day and ask for a chargeback.
Report the call and the page that showed "Dear client Comcast Cable Communications inc., congratulations!" to the authorities in your country so the number can be blocked.
Why do I keep seeing Comcast Cable Communications congratulations virus?
Because something keeps sending your browser to it. The usual causes are a site allowed to show notifications, an extension that injects pages, or ads on sites you visit often. The sign reported, A browser warning that reads "Dear client Comcast Cable Communications inc., congratulations!", appears whenever one of these triggers fires.
Remove unknown sites from the browser's notification list, delete extensions you did not install on purpose, and see whether the page returns. If it only appears on one particular site, that site's ads are the source and avoiding it or using the browser's built-in protection settings is the fix.
How do I avoid pages like Comcast Cable Communications congratulations virus?
Keep the browser updated, do not click Allow on notification prompts from sites you do not know, and leave sites that open many pop-ups. Turn on Microsoft Defender SmartScreen in Edge under Settings > Privacy, search, and services, or Safe Browsing in Chrome under Settings > Privacy and security > Security.
Never call numbers, download files or paste commands because a web page told you to. An ad blocker from your browser's official extension store also cuts most redirect ads. Keep Potentially unwanted app blocking on in Windows Security as well.
Is my computer infected?
Seeing the page does not mean the PC is infected. You reached it through an ad, a redirect or a notification. Check whether something on the PC sends you there: if the page opens by itself or on every site, look for extensions and notification permissions, and run a scan.
If you downloaded or ran something the page offered, treat the PC as possibly infected and follow the plan. A full scan with Windows Security gives you a clear answer either way.
Do I need to reset my router because of Comcast Cable Communications congratulations virus?
No. Fake alert pages work inside the browser and do not change router settings. The sign reported is A browser warning that reads "Dear client Comcast Cable Communications inc., congratulations!", which comes from a web page, not from the network. Resetting the router will not stop it.
What stops it is removing the browser permission, extension or program that opens the page. If you see the same page on every device in the house without visiting the same sites, that is unusual and worth checking the router's DNS settings, but it is not what has been reported here.
Is it safe to force-close the browser?
Yes. Ending the browser in Task Manager or restarting the PC does not damage Windows or your files, despite what pages like Comcast Cable Communications congratulations virus say.
The warning "do not close this window" is part of the scam. At worst you lose unsaved text in other tabs. After restarting, do not let the browser restore the previous session, because that would reopen the scam page.
If it reopens anyway, open the browser's settings for startup pages and remove the address. Then remove its notification permission if it has one.
Why does Comcast Cable Communications congratulations virus keep coming back?
Most often because a site has permission to send notifications, and those notifications lead to new scam pages. Remove notification permissions for unknown sites. Other causes are an adware extension, a browser that restores the previous session, or a site you visit often that shows such ads.
If the page appears outside the browser, a program on the PC is responsible; check Installed apps. If you cannot find the source, resetting the browser removes all of these causes at once.
Will Fortect remove Comcast Cable Communications congratulations virus?
Fortect scans Windows for malware and unwanted programs and repairs the system files and settings they change, and its free scan shows what it finds on your PC before you decide anything.
For Comcast Cable Communications congratulations virus, follow the plan above as well: the browser steps take back permissions and settings that no scanner treats as a threat, and uninstalling the program that brought it removes the source.
Run Microsoft Defender's full scan and, if anything was found, its offline scan as a second opinion. If the symptoms are gone after the plan and both scans are clean, there is nothing more to do.
Sources
- Imperva: Social Engineering (read October 6, 2026)
- Dieviren: Dieviren (read October 6, 2026)
- FTC: How to spot, avoid and report tech support scams (read October 6, 2026)
- FTC: How to recognize, remove and avoid malware (read October 6, 2026)
- Microsoft Learn: Microsoft Defender Offline (read October 6, 2026)