Sigonews ads: what it is and how to remove it
Sigonews is a third-party website that aims to drop notifications on Android devices and Windows/macOS computers. Ads from this source can occur when you are infected with an adware program.
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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Sigonews ads: summary
| Distribution | Such unwanted products often get bundled with freeware and shareware while regular programs are downloaded from secondary downloading sources such as cnet.com, download.com, and softonic.com |
|---|---|
| Name | Sigonews |
| Type | Adware/PUP |
| Targets | This potentially unwanted program can appear on Android devices and Windows/macOS computer systems. Also, the adware can target web browser applications such as Google Chrome, Mozilla Firefox, Internet Explorer, Safari, and others |
| Tasks | The adware will likely display an excessive amount of adverts that carry various offers and deals, start redirecting you to affiliate sources filled with sponsored offers, collect details about your web browser and online activities, modify your web browser's settings such as the default homepage and new tab URL |
| Potential danger | Even though this adware does not include a high danger level as notorious malware forms such as ransomware or trojans, it still can pose some risk by redirecting the user to potentially malicious domains |
| 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 9 more facts
| Detection names | No Microsoft detection name is known |
|---|---|
| Damage | Not recorded in the old report |
| Symptoms | Redirects to an unknown domain |
| Evidence | 5 write-ups by security sites; details still limited |
| Domains | cnet.com |
| Ads shown as | Redirects through ad pages |
| Browsers | Chrome, Edge and Firefox |
| First seen | 13 January 2020 |
| Facts checked | 6 October 2026 |
What the Sigonews ads ads look like
Like most website operators, sigonews.com collects non-personally-identifying information of the sort that web browsers and servers typically make available, such as the browser type, language preference, referring site, and the date and time of each visitor request. sigonews.com's purpose in collecting non-personally identifying information is to better understand how sigonews.com's visitors use its website. From time to time, sigonews.com may release non-personally-identifying information in the aggregate, e.g., by publishing a report on trends in the usage of its website.
Is Sigonews ads dangerous?
From our report of Jan 2020 · not reviewed since
Sigonews - a website that provides brand stories but aims to throw annoying pop-ups on Androids and other devices
Sigonews is a third-party website that aims to drop notifications on Android devices and Windows/macOS computers.
Ads from this source can occur when you are infected with an adware program. If this is what has happened, you can expect to receive an increasing load of notifications through time. The PUP might load you with suspicious offers and deals that suggest downloading rogue security software or unreliable services.
Sigonews keeps popping up on web browsers such as Google Chrome, Mozilla Firefox, Internet Explorer, Safari, and others. You might even find bogus extensions and plug-ins inserted in your web browser apps and the homepage and new tab URL locations modified by the adware.
If Sigonews keeps opening frequently, this type of activity can relate in constant browser struggles and freezes. As a result, you might not be capable of performing regular browsing sessions or even opening the app properly. The constant advertising can also relate in high usage of your central processing unit energy.
Sigonews pop-up can also aim to promote various surveys, scams, and fake prize claims. If the adware asks you to provide any personal information, you should not do that as you can easily get your private data exposed. Also, do not type any credential details into surveys or questionnaires as your money can get swindled or you might be subscribed to various bogus services under your own will.
Continuously, Sigonews might start performing redirecting sessions to other affiliate domains and sponsored websites where the users can be provided with additional suspicious offers. you should be careful once taken to such sources as you might accidentally land on a malware-laden location and get your computer or mobile phone device infected with some type of notorious malware.
In addition, Sigonews virus is a term that is added to the adware's name as the potentially unwanted program appears on computer systems through a deceptive technique known as software bundling. The developers include their suspicious app in a package of freeware and shareware that gets downloaded from secondary websites, including ones such as cnet.com, download.com, and softonic.com.
According to the Privacy Policy of Sigonews.com, this website aims to collect non-personal information that is related to the user's browser and online activities.
Even though the developers claim that such data is gathered to understand how the users use their website, such parties truly collect this type of information for sharing it with other parties for income or use it in targeted advertising. This is what the Sigonews Privacy Policy states:
Sigonews virus removal is a way to avoid such information getting collected as you are likely to receive an increased amount of adverts afterward. However, this is not the only problem that can occur while dealing with this adware.
Sigonews might bring other potentially unwanted programs together with itself. The adware can already come in a bundled with additional adware, browser hijackers, scareware, or technical support scams or it can bring these unwanted products after landing on your Windows or macOS, Android operating systems. The appearance of Sigonews signifies that your computer or mobile phone has low security as it is vulnerable to such infections.
What you should do is take care of the Sigonews removal process and secure your computer or mobile device with proper antimalware.
The elimination task itself also includes downloading and installing reliable antivirus tools or you can deal with the process by carrying out manual step-by-step guidelines like the ones that are added to the end of the article and are supposed to help you clean your OS and web browser applications from the threat.
There are a lot of reasons why you should remove Sigonews from your computer or device. First, the adware is likely to produce an excessive amount of advertising that can slow down your browsing sessions and pose a risk to your privacy.
Second, the PUP can cause malicious redirecting and start recording your online data. Also, the app can bring other PUPs. If you have spotted some system compromisation due to the last fact mentioned, try fixing things with software.
From our report of Jan 2020 · not reviewed since
More from our earlier report on Sigonews
- If you have discovered any compromised areas on your computer or mobile phone device, try fixing the damage with the help of software such as
How Sigonews ads got into your browser
From our report of Jan 2020 · not reviewed since
Technology experts from Virusai.lt claim that ad-supported applications are most often delivered by using a deceptive technique called "software bundling".
This method helps the rogue product to reach the computer system through downloads of free software from secondary websites such as cnet.com, download.com, and softonic.com.
Those who have set "Recommended" as their default downloading mode ar the most vulnerable to this type of infection process as such settings allow additional products to escape into the targeted computer system without any detection. Regarding this fact, you should change the settings to "Advanced" or "Custom".
Continuously, adware applications are delivered via fake software (e.g. flash player) updates that are lurking on unsecured websites. Be careful if you are ever prompted to updated some type of program while browsing the Internet. You should first check all the official update releases on the app developer's original website.
Last but not least, PUPs can enter computers and mobile phone devices through infectious advertisements and hyperlinks that are seen on third-party websites. For this purpose, you should always pay attention to what you are clicking on and install reliable antivirus software that includes the safe browsing feature for proper protection.
Check your browser and PC
- Address:
cnet.com
How to remove Sigonews ads
How to remove the Sigonews 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
Sigonews 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 Sigonews 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
To remove all questionable applications from your Windows computer system and get rid of the system sluggishness that has been caused by the adware app, you should perform this instructing guide:
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)
To clean Mozilla Firefox from questionable-looking components and get rid of all the suspicious changes that have been caused by the adware attack, you should take a look at these steps:
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
To get rid of all suspicious extensions and changes from your Safari web browser app, you should perform the below-provided step-by-step guidelines:
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.
Reset Internet Explorer
To eliminate all suspicious objects from Internet Explorer and reverse the web browser back to its previous position, apply the following instructions:
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.
From our report of Jan 2020 · not reviewed since
Sigonews virus removal Android
Since Sigonews is also considered to be an Android virus, we decided to help those users who have this adware lurking on their mobile phone devices.
Even though you can get rid of the potentially unwanted program and its activities by employing automatical software, there are also some manual steps that you can complete. First, boot your mobile phone device in the Safe Mode feature:
If this is not enough to stop the annoying advertising and redirecting activities from which you have been suffering lately, you should try removing all suspicious applications from the Apps or Application manager section:
- Locate the power button on the side of your phone and hold it until you see a menu.
- Chose the Power off option.
- When you see a window that suggests restarting your device via Safe Mode, click this option and select OK.
- Once in Safe Mode, continue with the Settings part.
- Afterward, select Apps/Application manager.
- Find all questionable-looking applications and get rid of them.
From our report of Jan 2020 · not reviewed since
Sigonews virus removal guidelines for Windows and macOS
If you have got your computer affected by the adware program, you can remove Sigonews with the help of automatical software or by using the manual-step-by-step guidelines that have been added to the end of this article.
Sigonews removal involves cleaning both your Windows/macOS computers and web browser applications such as Google Chrome, Mozilla Firefox, Internet Explorer, Microsoft Edge, and Safari. If you do not get rid of all the suspicious content that was added by the adware, the suspicious app can easily appear within the next computer/browser boot process.
Questions about Sigonews ads
Why does my browser keep going to cnet.com?
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. cnet.com 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 cnet.com?
Landing on cnet.com 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 Sigonews show me ads?
Because that is its whole purpose. Sigonews 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 Sigonews 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 Sigonews?
Look for redirects to cnet.com. That is the trace Sigonews 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.
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.
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.
Why didn't my antivirus catch Sigonews?
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 Sigonews?
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 Sigonews, 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
- Wikipedia: Potentially unwanted program (read October 6, 2026)
- Virusai: Virusai.lt (read October 6, 2026)
- Google Chrome Help: Use notifications to get alerts (no longer online) (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)