Kerumal ads: what it is and how to remove it
Kerumal is a highly suspicious domain that has been blacklisted in various cybersecurity-related forums for malware. Many people reported that Mozilla Firefox and Google Chrome keeps redirecting to this website every 15 minutes.
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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Kerumal ads: summary
| Title | Kerumal |
|---|---|
| Classification | Adware, browser redirects |
| Installation technique | Kerumal PUP spreads chained with freeware and shareware. It's one of the pre-selected freeware components, which is installed on a target system by default unless the user chooses the Advanced installation technique and removes a checkmark. |
| Post-installation symptoms | When installed, the adware initiates scheduled redirects to kerumal and affiliate domains. In addition, it generates intrusive Kerumal ads, popups, banners, and other advertising content. Web browser's performance diminishes, common freezes occur. |
| Removal options | Just like any other adware-type program, it may be eliminated both manually and automatically. If you have a professional antivirus program, set it to perform a full system scan. If antivirus does not detect this malware, open the list of installed apps and carefully check for unknown programs. |
| Detection names | No Microsoft detection name is known |
| 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 11 more facts
| Distribution | Not recorded in the old report |
|---|---|
| Damage | Not recorded in the old report |
| Name | Kerumal |
| Type | Adware extension |
| Symptoms | Redirects to an unknown domain |
| Evidence | 5 write-ups by security sites; details still limited |
| Domains | remark.net |
| Ads shown as | Redirects through ad pages |
| Browsers | Chrome, Edge and Firefox |
| First seen | 14 April 2020 |
| Facts checked | 6 October 2026 |
What the Kerumal ads ads look like
Threat Blocked. We've safely aborted a connection on Kerumal.com because it was infected with URL: Blacklist.
Is Kerumal ads dangerous?
From our report of Apr 2020 · not reviewed since
Kerumal is a misleading adware-related website that may continuously appear on a web browser as a new tab window
Kerumal is a highly suspicious domain that has been blacklisted in various cybersecurity-related forums for malware.
Many people reported that Mozilla Firefox and Google Chrome keeps redirecting to this website every 15 minutes. Note that web browser's redirects to Kerumal and related domains, including break.tv, remark.net, rdtk.io, the-major-news.com, and others are not normal, as all these domains are actively involved in advertising campaigns, and the sole reason of abnormal web browser's behavior is adware infection.
The website kerumal.com cannot be visited by simply typing its name to the address bar. Google Chrome, Mozilla Firefox, Safari, or any other web browser may start redirecting to kerumal.com on a particular schedule due to the potentially unwanted program (PUP), known as adware.
Typically, this application settles down among the web browser's plug-in list without being notices, since it is distributed in disguise with freeware and shareware as an "optional" component. However, it can hardly be opted out because its installer is preselected and hidden under the Quick installation method.
The so-called Kerumal virus is not a malicious computer infection. Based on the website information online, the domain itself is not malicious. It's a relatively new domain, i.e., one year and three-month-old, though it has been estimated that it attracts more than 9,000 visitors daily.
However, one of the AV engines detect this URL as malicious, VirusTotal reveals. Moreover, more than one forums related to cybersecurity claim that their web browser is continuously redirecting to the kerumal website and its affiliate domains.
Kerumal adware may cause other web browser-related side effects, such as multiple ads on random websites, pop-ups, banners, interstitial ads, excessive hyperlinks, web browser freezes, and similar. In other words, Kerumal virus is a type of malware that triggers various inconveniences while browsing the web. It's main task - display advertising content and boosts traffic to misleading third-party websites.
The adware-type browser's plug-in is a misleading app on its nature. Developers apple deceptive distribution techniques to trick less IT-savvy people into installing and put effort into keeping it unrecognized for as long as possible.
PUPs like Kerumal adware are used for monetization purposes, i.e., generate third-party ads, pop-ups and create forced traffic to potentially dangerous web domains. Having this in mind, people experiencing uncontrollable redirects to kerumal.com should check the system for the Kerumal virus without delay.
Many reputable download websites have been negatively assessed because of PUP distribution. Freeware distributors get monetized for each additional application installed, and there's nothing wrong about that. The biggest problem is, so-called, bundling distribution is that download websites tend not to regulate the activities of the additional applications.
The latter was seldom checked for implementation of intrusive activities, such as a web browser's hijack, ads, redirects, and similar. Currently, a significant improvement regarding freeware download websites is noticed, though people still have to be cautious when installing freeware since apps like Kerumal virus tend to pass malware checks.
Keep in mind that Kerumal adware may turn web browsing activities in a hazardous practice. Even though it cannot harm the system directly, it's a type of browser plug-in that may display a vast amount of third-party ads and pop-ups that disguise links to potentially dangerous domains.
Most of the Kerumal ads contain advertising material and may be linked to unpopular online markets. However, some of the pop-ups may report about bogus malware infection, offer to try a free virus scanner online, which eventually informs multiple malware infections and trick people into downloading scareware or another intrusive app.
This particular plug-in is also accused of a chain consolidation with other potentially dangerous websites. It is set to initiate redirects every 15 minutes of web browsing and, therefore, the user will keep seeing a forced new tab window kerumal.com.
An attempt to close the tab or get back to the previous website will generate forced visits to break.tv, remark.net, rdtk.io, the-major-news.com, or similar domains that do not feature reliable content either. That's the main reason why so many people are looking for an easy way to remove Kerumal virus from Firefox.
Luckily, it's not difficult to uninstall Kerumal from OS or Windows. As soon as questionable activities are noticed, you should carefully check the list of installed apps. In case you cannot find any suspicious programs on the system manually, perform Kerumal removal with a reliable antivirus program, such as or .
From our report of Apr 2020 · not reviewed since
More from our earlier report on Kerumal
- Freeware bundles may initiate multiple changes on the system.
- For example, they may change multiple registry entries, create duplicate files, corrupt web browser's settings, and similar.
- Finally, AVAST and MBAM are giving warnings saying:
Check your browser and PC
- Address:
remark.net
How to remove Kerumal ads
How to remove the Kerumal extension
Do the browser steps in every browser and profile on the PC, then check Windows for the program that installed the extension.
Step 1: Remove extensions you did not add
In Chrome open
chrome://extensions, in Edgeedge://extensions, and in Firefox the menu > Extensions and themes.Remove every extension you do not remember adding, especially search, new tab, coupon, PDF, weather or video downloader add-ons. Check every browser and every profile, because each keeps its own list.
If an extension has no Remove button or comes back, a browser policy holds it (see "Managed by your organization" in the procedure below). The pages are the same on Windows 11 and Windows 10.
Chrome on Windows 11: More > Extensions > Manage extensions. Full procedure with screenshots: Remove a browser extension
Step 2: Uninstall programs you did not mean to install
Kerumal rarely comes alone: it is usually installed by, or together with, a free program. In Windows 11 open Settings > Apps > Installed apps, in Windows 10 Settings > Apps > Apps & features, and sort by install date.
Uninstall every entry from the day the trouble began that you did not install on purpose, for example a download manager, a converter or a browser you never chose.
Keep drivers and entries from Microsoft, Intel, AMD, NVIDIA or your PC's maker unless you are sure.
Full procedure with screenshots: Uninstall a program or app in Windows On uGetFix
Step 3: Reset the browser
A reset removes what the steps above could miss:
- changed start pages
- site permissions
- hidden settings
In Chrome open Settings > Reset settings > Restore settings to their original defaults; in Edge Settings > Reset settings; in Firefox Help > More troubleshooting information > Refresh Firefox.
Tip: Bookmarks and saved passwords stay, while extensions are turned off and the search engine and start page return to the defaults.
Reset every browser on the PC, including Edge, which Windows 11 and Windows 10 always have.
Chrome on Windows 11: Settings > Reset settings. Full procedure with screenshots: Reset a browser and fix a hijacked search engine
Step 4: Scan the PC, then run the offline scan
A scan finds the parts of Kerumal that the manual steps cannot see. In Windows Security > Virus & threat protection > Scan options, start a Full scan and quarantine what it reports.
Follow it with Microsoft Defender Antivirus (offline scan) > Scan now, which restarts the PC and checks the disk while Windows and the malware are not running.
It takes about 15 minutes and works the same in Windows 11 and Windows 10. If either scan finds something, run the full scan again after removal until it comes back clean.
Windows 11: Windows Security > Virus & threat protection > Scan options. Full procedure with screenshots: Run a Microsoft Defender Offline scan
Instructions for each browser and system
The detailed steps for every browser and system this guide covers. Open the one you use.
Uninstall from Windows
The following tutorial will help you to eliminate Kerumal from Windows.
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.
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.
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.
Remove from Mozilla Firefox (FF)
Kerumal popups may not end up for as long as the web browser's settings are not reset. All you have to do is to disable unwanted add-on for good.
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.
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
Although Mac OS is less vulnerable to adware infections, it's not a hundred percent protected. If you are struggling with redirects to the aforementioned domain, perform these steps to remove Kerumal virus from Mac.
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.
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.
Protect your privacy - employ a VPN
There are several ways how to make your online time more private - you can access an incognito tab.
However, there is no secret that even in this mode, you are tracked for advertising purposes. There is a way to add an extra layer of protection and create a completely anonymous web browsing practice with the help of VPN. This software reroutes traffic through different servers, thus leaving your IP address and geolocation in disguise.
Besides, it is based on a strict no-log policy, meaning that no data will be recorded, leaked, and available for both first and third parties. The combination of a secure web browser and VPN will let you browse the Internet without a feeling of being spied or targeted by criminals.
No backups? No problem. Use a data recovery tool
If you wonder how data loss can occur, you should not look any further for answers - human errors, malware attacks, hardware failures, power cuts, natural disasters, or even simple negligence.
In some cases, lost files are extremely important, and many straight out panic when such an unfortunate course of events happen. Due to this, you should always ensure that you prepare proper data backups on a regular basis.
If you were caught by surprise and did not have any backups to restore your files from, not everything is lost. is one of the leading file recovery solutions you can find on the market - it is likely to restore even lost emails or data located on an external device.
From our report of Apr 2020 · not reviewed since
Tips on how to avoid potentially unwanted programs
Potentially unwanted programs, such as adware or browser hijackers, do not feature malicious train in comparison to ransomware, spyware, or other highly dangerous infections.
As they are not built on the grounds of malicious codes, they tend to bypass malware checks easily, which is why it is possible to run into adware or another potentially dangerous application on the official websites or even Google store.
In this case, it is very helpful to make a brief analysis of the app by reading its reviews and comments on the Internet. Besides, download and install a reliable anti-malware software, which will inform you about hidden installers.
However, reputable download websites are nothing in comparison to third-party download sites that contain typically paid programs for free. Such websites attract visitors due to a variety of legitimate and never-seen-before apps, although downloading them poses a high risk of malware intrusion or even virus attacks.
In general, cybersecurity experts recommend people not to download freeware just for fun. Deliberately consider whether you need a new app and have a clear ground why you need it.
Finally, the ultimate way to the malware-free system is to pay enough attention to freeware's installation process. No to Quick or Basic installation options. These are a straight way to installation of adware or browser hijackers.
Always select an expanded installation method (Advanced, Custom) as at discloses the bundle and enables users to deselect the preselected items. Typically, preselected programs are represented as plug-ins and add-ons that are supposed to improve the web browsing experience, but these are bogus claims, so don't get tricked.
From our report of Apr 2020 · not reviewed since
A guide on how to remove Kerumal adware
To sum up, all the information listed above, the term Kerumal virus, is not very precise since the website does not directly impact the system or its performance.
Nevertheless, redirects to the kerumal.com domain start of nowhere and may force you to visit sites that exhibit potentially dangerous content. Therefore, the only solution to stop unwanted redirects is to remove Kerumal from the system.
Some adware-type programs are incredibly persistent, which is why it may not appear on Apps list or other places where trustful apps are typically installed. Adware can be disguised under various diverse names and may be chained to other third-party apps. Therefore, automatic Kerumal removal is the most reliable way to get rid of adware from the system once and for all.
To make Kerumal removal more manageable for you, our experts have submitted a step-by-step tutorial, which explains how to eliminate the adware from the system and how to get rid of its add-on from Chrome, Firefox, IE, Safari, and others.
Questions about Kerumal ads
Why does my browser keep going to remark.net?
Something is sending it there. On one site only, that site's ads are the cause and leaving the site ends it.
On many different sites, the usual causes are an extension you installed with something else, a site you once allowed to send notifications, or an ad-supported program in Windows that changes how the browser behaves. remark.net itself is only a stop on the way: it records the visit and forwards you to whatever advertiser pays most.
Check the extensions page, then the list of sites allowed to send notifications, then Installed apps sorted by date. Removing the cause stops the redirects; blocking the domain alone usually does not, because the network moves to a new one.
Is it safe that my browser was redirected to remark.net?
Landing on remark.net does not infect the PC by itself. A browser does not run programs from a page without your action. The danger is in the pages that come next:
- some ask you to allow notifications
- some show fake virus warnings
- some offer downloads
- ask for card details
If you only saw those pages and closed them, nothing more is needed than removing whatever caused the redirect. If you allowed notifications, remove that permission.
If you downloaded a file, delete it unopened, or uninstall it if you ran it. If you typed a password or card number on one of the pages, change the password and call your bank.
Why does Kerumal show me ads?
Because that is its whole purpose. Kerumal is an adware extension, and its operators are paid for every ad it displays and every click it gets. In this case the ads take the form of redirects through ad pages.
They are chosen by ad networks that accept almost any advertiser, which is why so many look like warnings or prizes. The ads are not a sign that your PC is broken or infected with something worse; they are a sign that something on it, or in the browser, has permission to advertise. Removing that permission or program stops them.
Do I have to clean every browser?
Yes, if you use more than one. We saw Kerumal in Chrome, Edge and Firefox, and each browser keeps its own extensions, notification permissions and settings. Chrome and Edge share the same extension format, so one installer can add the same adware to both, while Firefox has its own add-ons.
Check every browser on the PC, including ones you rarely open. If you sync a browser with an account, clean it while signed in, so that the removal reaches your other computers rather than the adware returning from them.
How do I know the ads come from Kerumal?
Look for redirects to remark.net. That is the trace Kerumal leaves, and it shows up as redirects through ad pages. Ads that appear on every site, including ones that never carried ads before, point to something on your PC or in the browser rather than to the sites themselves.
A quick test is a private window, where extensions are off by default: if the ads disappear there, an extension is responsible. If they appear even with the browser closed, the source is a notification permission or a program in Windows.
An ad showed a phone number and I called it. What now?
The number belongs to scammers, not to Microsoft or an antivirus company. If you only talked, hang up and do not call back. If you let them connect to the PC, disconnect it from the internet, uninstall the remote access program they used, such as AnyDesk, TeamViewer, ScreenConnect or UltraViewer, and run a full and offline scan.
If you paid or gave bank details, call your bank at once on the number printed on your card. Change any passwords you typed while they were connected, and report the call.
Can adware slow down my PC?
Yes. Adware runs in the background, loads ad scripts, opens extra tabs and contacts its servers, all of which use processor time, memory and bandwidth. Ad-heavy extensions also slow down every page, because they inspect and change it before you see it.
The effect is strongest on older PCs and when several adware programs arrived together. After removal, restart the PC and check Task Manager for anything still using a lot of resources that you do not recognise. Speed usually returns to normal once the ads stop.
Does adware steal passwords?
Ordinary adware is built to show ads, not to steal logins, and most of it never touches saved passwords. The line is blurry, though. Extensions that can read every page could capture what you type, and adware ads sometimes lead to phishing pages that ask for passwords directly.
If you entered credentials on a page reached through an ad, change that password from a clean device and turn on two-step verification. Otherwise, removing adware extension and clearing cookies is usually enough.
Why didn't my antivirus catch Kerumal?
Many security products do not block adware or notification sites by default, because users often agreed to them, even through a misleading prompt. Notification spam installs nothing at all, so there is no file to detect.
In Windows 11 you can make Microsoft Defender block potentially unwanted apps: open Windows Security > App & browser control > Reputation-based protection settings and turn on Potentially unwanted app blocking. If notifications caused the pop-ups, no scanner will report them; the fix is in the browser's site settings.
Will Fortect remove Kerumal?
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 Kerumal, 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
- AVG: What is Adware and How to Get Rid of it? (read October 6, 2026)
- Norton: Free Downloads Can Be Dangerous (read October 6, 2026)
- VirusTotal: https://kerumal.com/ (read October 6, 2026)
- MakeUseOf: The Safest Free Software Download Sites for Windows (read October 6, 2026)
- Google Chrome Help: Use notifications to get alerts (no longer online) (read October 6, 2026)