Prevent being scammed by VIRAL ALARM OF MICROSOFT

Also Known As: Windows Support Alarm tech support scam
Distribution: Moderate
Damage level: Medium

"VIRAL ALARM OF MICROSOFT" removal instructions

What is "VIRAL ALARM OF MICROSOFT"?

"VIRAL ALARM OF MICROSOFT" is a fake alert, displayed by deceptive, rogue websites. It is used to scare users into thinking that their computer is blocked, due to a variety of issues. It promotes fraudulent Microsoft Windows technical support, which if used will eventually require payment. In most cases, such dubious sites are opened by PUAs (potentially unwanted applications) already present in the device. These apps do not need express user permission to be installed onto their systems. They operate by generating redirects to untrustworthy and potentially malicious websites (for example, ones that display messages like "VIRAL ALARM OF MICROSOFT"), also by delivering intrusive advertisement campaigns and spying on users' browsing activity.

Screenshot of website displaying VIRAL ALARM OF MICROSOFT

Once accessed, this website displays a pop-up window - an alarm from "Microsoft". This fraudulent alert implores users not to close the window/site and not to restart their computers, due to the registry key being blocked. Then it lists the reasons why the key is blocked: Windows OS (operating system) was registered using an illegal/pirated key, there is illegitimate software on the system and/or it is spreading viruses over the Internet, the device has been overtaken/hacked from an undefined location. The scam then continues to urge users to contact its "free" tech support and/or enter the registration key, in order to unblock the computer. Typically, when such fake supports are contacted they take users through meandering paths of technobabble intended to result in users paying for the imaginary services provided. In short, scams like "VIRAL ALARM OF MICROSOFT" are used to extort money from people. If such fake alerts cannot be closed the usual way (by closing the browser tab/window), the Task Manager should be used to end the browser process. When reopening the browser in question, the previous session should not be restored - since it will also reopen the scam page (or cause the site that redirected to it before, to do so again).

As previously stated PUAs can force-open new browser tabs/window and redirect users to untrustworthy and potentially malicious websites. They can also run invasive advertisement campaigns (pop-ups, banners, coupons, surveys and similar). By employing a variety of tools, unwanted applications enable third party graphical content. Consequently, the adverts delivered can seriously diminish browsing quality; limit browsing speed and site visibility (by overlaying the original content). Additionally, the ads themselves are deemed a safety hazard; due to the type of websites they redirect to (unreliable/compromised/malicious) and their ability to execute scripts, designed to make autonomous downloads/installs of rogue apps. Some PUAs also have data tracking abilities. By tracking users' browsing habits, they can gather their personal information (IP address, geolocation and real-life identity details). What is important to know, is that this data is then shared with third parties (possibly, cyber criminals), intent on misusing it to generate revenue. Therefore, PUAs can cause various browser and system invasions/infections, as well as lead to severe privacy issues (even identity theft). To ensure device integrity and user safety, all dubious applications must be removed immediately

Threat Summary:
Name Windows Support Alarm tech support scam
Threat Type Phishing, Scam, Social Engineering, Fraud
Fake Claim The error message claims that the system has been blocked due to security reasons and encourages users to contact fake Microsoft tech support.
Tech Support Scammer Phone Number +1-833-272-0272
Related Domains web-web-tec-host-err[.]xyz
Serving IP Address (web-web-tec-host-err[.]xyz) 43.255.154.93
Detection Names (web-web-tec-host-err[.]xyz) Kaspersky (Malware), Forcepoint ThreatSeeker (Suspicious), Full List Of Detections (VirusTotal)
Symptoms Fake error messages, fake system warnings, pop-up errors, hoax computer scan.
Distribution methods Compromised websites, rogue online pop-up ads, potentially unwanted applications.
Damage Loss of sensitive private information, monetary loss, identity theft, possible malware infections.
Removal

To eliminate Windows Support Alarm tech support scam our malware researchers recommend scanning your computer with Spyhunter.
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Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

PUAs are innumerous and most share certain traits between them. They often offer some sort of "useful" and "advantageous" features. However, most of them are nonfunctional and if not, they rarely operate as advertised. Furthermore, the Internet is rife with various deceitful and scam websites. They usually display fraudulent system alarms, virus and error alerts, as well as other fake warnings meant to frighten users into paying for having their devices "fixed". Similar scams to "VIRAL ALARM OF MICROSOFT", include "Virus Support Alert""Windows is not activated""This computer is blocked" and many others. Such sites and scams are mostly used by cyber criminals, seeking financial gain through offers of various services or software.

How did potentially unwanted applications install on my computer?

PUAs can be inadvertently installed by users themselves or without their consent/knowledge. Undesirable applications can be downloaded from their websites. They can also be installed alongside intended programs. "Bundling" is a false marketing tactic, by which regular software is pre-packed with PUAs. Inattentive and rushed installations (e.g. ignoring terms, skipping steps, etc.) can also endanger systems to undesirable invasions. PUAs also proliferate through invasive adverts, which when clicked, can execute scripts to download/uninstall them.

How to avoid installation of potentially unwanted applications?

It is strongly recommended to use only official and verified sources for downloading software, as opposed to third party downloaders. When installing programs, it is advised to read terms and explore possible options, to ensure that the installed programs are legitimate and will behave appropriately. Additionally, users should use "Custom/Advanced" settings and opt-out from all supplementary apps/features. When browsing, users should refrain from clicking on suspicious ads and avoid visiting likewise suspect websites. Intrusive advertisements can look ordinary and harmless, however the sites they redirect to (gambling, pornography, adult-dating, etc.) can be a dead giveaway. Should users encounter such ads/redirects, they are recommended to check their device and remove all dubious applications and browser extensions/plug-ins. If your computer is already infected with PUAs, we recommend running a scan with Spyhunter for Windows to automatically eliminate them.

Text presented in "VIRAL ALARM OF MICROSOFT" pop-up:

VIRAL ALARM OF MICROSOFT
***This computer is BLOCKED***
Do not close this window and restart your computer
The registry key on your computer is Blocked.
Why did we block your computer?

The registry key of the window is illegal.
This window uses pirated software.
This window sends virus over the internet.
This window is hacked or used from undefined location.
We block this computer for your safety.
Contact Windows helpline to wake up your computer.

Enter Windows registration key to unlock or call
+1-833-272-0272(Toll-free)
ENTER KEY:


Windows Support alarm
Your System Has Discovered An Unusual Activity.
It could harm your computer data and your financial activities.
Please report this activity an +1-833-272-0272
Ignore warning
Chat Well

The appearance of "VIRAL ALARM OF MICROSOFT" pop-up (GIF):

VIRAL ALARM OF MICROSOFT scam gif

Instant automatic removal of Windows Support Alarm tech support scam: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of Windows Support Alarm tech support scam. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Quick menu:

Removal of potentially unwanted applications:

Windows 7 users:

Accessing Programs and Features (uninstall) in Windows 7

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

Windows XP users:

Accessing Add or Remove Programs in Windows XP

Click Start, choose Settings and click Control Panel. Locate and click Add or Remove Programs.

Windows 10 and Windows 8 users:

Accessing Programs and Features (uninstall) in Windows 8

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.

Mac OSX users:

Uninstall app in OSX (Mac)

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.

PUAs uninstall via Control Panel

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 application, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.

Remove rogue extensions from Internet browsers:

Video showing how to remove potentially unwanted browser add-ons:

Internet Explorer logoRemove malicious add-ons from Internet Explorer:

Removing rogue extensions from Internet Explorer step 1

Click the "gear" icon Internet Explorer options 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".

Removing rogue extensions from Internet Explorer step 2

Optional method:

If you continue to have problems with removal of the windows support alarm tech support scam, 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.

Resetting Internet Explorer settings to default on Windows XP

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.

Resetting Internet Explorer settings to default on Windows 7

Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.

Reseting Internet Explorer settings to default in Windows 8 - accessing

In the opened window, select the Advanced tab.

Resetting Internet Explorer settings to default on Windows 8 - Internet options advanced tab

Click the Reset button.

Resetting Internet Explorer settings to default on Windows 8 - click the Reset button in the Internet options advanced tab

Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.

Resetting Internet Explorer settings to default on Windows 8 - confirm settings reset to default by clicking the reset button

Google Chrome logoRemove malicious extensions from Google Chrome:

Removing rogue extensions from Google Chrome step 1

Click the Chrome menu icon Google 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 and remove them.

Removing rogue extensions from Google Chrome step 2

Optional method:

If you continue to have problems with removal of the windows support alarm tech support scam, reset your Google Chrome browser settings. Click the Chrome menu icon Google 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.

Google Chrome settings reset step 1

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

Google Chrome settings reset step 2

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Google Chrome settings reset step 3

Mozilla Firefox logoRemove malicious plugins from Mozilla Firefox:

Removing rogue extensions from Mozilla Firefox step 1

Click the Firefox menu firefox menu icon (at the top right corner of the main window), select "Add-ons". Click on "Extensions", in the opened window remove all recently-installed suspicious browser plug-ins.

Removing rogue extensions from Mozilla Firefox step 2

Optional method:

Computer users who have problems with windows support alarm tech support scam removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, firefox menu icon in the opened menu, click Help.

Accessing settings (Reset Firefox to default settings step 1)

Select Troubleshooting Information.

Accessing Troubleshooting Information (Reset Firefox to default settings step 2)

In the opened window, click the Refresh Firefox button.

Clicking on Refresh Firefox button (Reset Firefox to default settings step 3)

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Confirm your want to reset Firefox settings to default (Reset Firefox to default settings step 4)

safari browser logoRemove malicious extensions from Safari:

removing adware from safari step 1 - accessing preferences

Make sure your Safari browser is active, click Safari menu, and select Preferences....

removing adware from safari step 2 - removing extensions

In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.

Optional method:

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

resetting safari step 1

In the opened window select all history and click the Clear History button.

resetting safari step 2

Microsoft Edge logoRemove malicious add-ons from Microsoft Edge:

Removing browser hijackers from Microsoft Edge step 1

Click the three horizontal dots icon edge more icon (at the top right corner of Microsoft Edge), select "Extensions". Look for any recently-installed suspicious extensions, right click your mouse on these entries and click "Uninstall".

Removing browser hijackers from Microsoft Edge step 2

Optional method:

Click the three horizontal dots icon edge more icon (at the top right corner of Microsoft Edge), and select Settings.

Resetting Microsoft Edge settings step 1

In the opened tab, click the "Choose what to clear" button.

Resetting Microsoft Edge settings step 2

Click Show more and select everything, and then click the "Clear" button.

Resetting Microsoft Edge settings step 3

  • If this didn't help, please follow these alternative instructions explaining how to reset Microsoft Edge browser.

Summary:

declining installation of adware while downloading free software sampleCommonly, 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.

Removal assistance:
If you are experiencing problems while trying to remove windows support alarm tech support scam from your computer, please ask for assistance in our malware support forum.

Post a comment:
If you have additional information on windows support alarm tech support scam or it's removal please share your knowledge in the comments section below.

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global virus and spyware activity level today:

Medium threat activity
Medium

Increased attack rate of infections detected within the last 24 hours.

QR Code
Windows Support Alarm tech support scam QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of Windows Support Alarm tech support scam on your mobile device.
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Platform: Windows

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