What is SYSTEM WARNING?
Displayed by a malicious website, "SYSTEM WARNING" is a fake error message claiming that the system is damaged. Research shows that users often visit this website inadvertently - they are redirected by various potentially unwanted programs (PUPs).
Most infiltrate systems without consent. As well as causing redirects, potentially unwanted programs are also known to misuse system resources, deliver 'malvertising' ads (coupons, banners, pop-ups, etc.), and record user-system information.
This error states that system has detected an issue and, for this reason, users should immediately address Microsoft (Windows Operating System developers) technicians (via a toll-free telephone number ["1800-235-661"] provided) to resolve it. After contacting these people, users supposedly receive help.
In fact, "SYSTEM WARNING" is a scam - it is not genuine and has nothing to do with Microsoft. Criminals attempt to scare and trick users into calling and paying for technical support that is not required. These people often demand remote access to users' computers to stealthily install malware and/or change system settings.
Then they claim to find more issues and offer help for additional fees. For these reasons, never attempt to contact these people. The "SYSTEM WARNING" error can be removed by closing the web browser or restarting the system.
The aforementioned malicious websites (and potentially unwanted programs) are known to misuse system resources by performing background tasks (such as mining cryptocurrency), thus diminishing overall system performance. Potentially unwanted programs also deliver malicious ads.
To achieve this, developers employ various tools that enable placement of third party graphical content on any site. Therefore, the ads often conceal underlying content. Furthermore, some lead to malicious websites and/or run scripts that download and install malware.
Therefore, even accidental clicks can result in high-risk computer infections. Potentially unwanted programs record various data that might be personally identifiable. Developers sell the details to third parties. Therefore, PUPs pose a direct threat to your privacy and Internet browsing safety. Eliminate them immediately.
|Name||"SYSTEM WARNING" virus|
|Threat Type||Adware, Unwanted ads, Pop-up Virus|
|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, free software installers (bundling), fake flash player installers.|
|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.
"SYSTEM WARNING" is virtually identical to Your Windows Infected With Viruses, Microsoft Warning Alert, Ransomware Detected, and dozens of other fake error messages displayed by malicious sites. All claim that the system is damaged, however, these claims are false - fake errors such as "SYSTEM WARNING" are designed only to extort money from unsuspecting users.
Research shows that potentially unwanted programs are often very similar. By offering various "useful features", PUPs attempt to give the impression of legitimacy, however, only a small fraction provide the features promised - most are useless.
Their real purpose is to generate revenue for the developers. Rather than (or, in rare cases, together with) enabling the functionality promised, PUPs promote malicious websites (by causing unwanted redirects), diminish system performance, deliver malicious ads (via the "Pay Per Click" advertising model), and gather system information.
How did adware install on my computer?
Although some PUPs have official download websites, developers usually proliferate them using the aforementioned malicious ads and via a deceptive marketing method called "bundling" (stealth installation of third party software together with regular programs). Developers are aware that many users rush the download/installation processes and skip steps.
Therefore, they hide "bundled" apps within the "Custom/Advanced" settings, or other sections of the download/installation processes. By carelessly skipping steps (and clicking various ads), users expose their systems to risk of various infections and compromise their privacy.
How to avoid installation of potentially unwanted applications?
The main reasons for computer infections are poor knowledge and careless behavior. The key to computer safety is caution. Therefore, be cautious when browsing the Internet and when downloading/installing software. Cyber criminals invest many resources into designing malicious ads.
Most appear legitimate, however, they usually lead to suspicious websites such as, for example, surveys, adult dating sites, pornography, gambling, etc. If you encounter such ads, uninstall all suspicious programs and browser extensions. Furthermore, select the "Custom/Advanced" settings and carefully analyze each download/installation step.
Third party download/installation tools often bundle PUPs (criminals monetize these tools by promoting rogue programs). Therefore, download your software from official sources only using a direct download link.
The appearance of "SYSTEM WARNING" scam pop-up (GIF):
Text presented within SYSTEM WARNING pop-up:
Your computer is in blocked state.
DO NOT PRESS ANY KEY UNTIL YOU KNOW SAFE SIDE INSTRUCTIONS.
For safety instructions immediately call on the support number. A Microsoft Super Technician is waiting to guide you to safeguard your system.
You must now avoid this warning, as this is a very critical infection, Microsoft Super Technicians are level 9 technicians which are expertise in resolving theses kind of issues. THIS CALL IS A TOLL FREE CALL. Toll Free: 1800-235-661
Instant automatic malware removal:
Manual threat removal might be a lengthy and complicated process that requires advanced computer 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:
- What is SYSTEM WARNING?
- STEP 1. Uninstall deceptive applications using Control Panel.
- STEP 2. Remove adware from Internet Explorer.
- STEP 3. Remove rogue extensions from Google Chrome.
- STEP 4. Remove potentially unwanted plug-ins from Mozilla Firefox.
- STEP 5. Remove rogue extensions from Safari.
- STEP 6. Remove rogue plug-ins from Microsoft Edge.
Windows 11 users:
Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.
Windows 10 users:
Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.
Windows 7 users:
Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.
macOS (OSX) users:
Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.
In the uninstall programs window, look for any suspicious/recently-installed applications, select these entries and click "Uninstall" or "Remove".
After uninstalling the potentially unwanted program, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.
Remove adware from Internet browsers:
Video showing how to remove potentially unwanted browser add-ons:
Remove malicious add-ons from Internet Explorer:
Click the "gear" icon (at the top right corner of Internet Explorer), select "Manage Add-ons". Look for any recently-installed suspicious browser extensions, select these entries and click "Remove".
If you continue to have problems with removal of the "system warning" virus, reset your Internet Explorer settings to default.
Windows XP users: Click Start, click Run, in the opened window type inetcpl.cpl In the opened window click the Advanced tab, then click Reset.
Windows Vista and Windows 7 users: Click the Windows logo, in the start search box type inetcpl.cpl and click enter. In the opened window click the Advanced tab, then click Reset.
Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.
In the opened window, select the Advanced tab.
Click the Reset button.
Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.
Remove malicious extensions from Google Chrome:
Click the Chrome menu icon (at the top right corner of Google Chrome), select "More tools" and click "Extensions". Locate all recently-installed suspicious browser add-ons, select these entries and click the trash can icon.
If you continue to have problems with removal of the "system warning" virus, reset your Google Chrome browser settings. Click the Chrome menu icon (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.
After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.
In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.
Remove malicious plug-ins from Mozilla Firefox:
Click the Firefox menu (at the top right corner of the main window), select "Add-ons". Click "Extensions", in the opened window, remove all recently-installed suspicious browser plug-ins.
Computer users who have problems with "system warning" virus removal can reset their Mozilla Firefox settings.
Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.
Select Troubleshooting Information.
In the opened window, click the Refresh Firefox button.
In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.
Remove malicious extensions from Safari:
Make sure your Safari browser is active, click Safari menu, and select Preferences....
In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.
Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...
In the opened window select all history and click the Clear History button.
Remove malicious extensions from Microsoft Edge:
Click the Edge menu icon (at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.
If you continue to have problems with removal of the "system warning" virus, reset your Microsoft Edge browser settings. Click the Edge menu icon (at the top right corner of Microsoft Edge) and select Settings.
In the opened settings menu select Reset settings.
Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.
- If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.
Commonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.
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