Avoid the scam entitled "A virus has been detected on your computer"

Also Known As: A virus has been detected on your computer tech support scam
Distribution: Low
Damage level: Medium

"A virus has been detected on your computer" removal instructions

What is "A virus has been detected on your computer"?

This is a typical tech support scam in which criminals claim to offer a legitimate technical support service. Typically, the scammers responsible attempt to trick unsuspecting users into paying for supposedly legitimate software or services, or even installing a Remote Administration Tool (RAT), which would allow them to remotely access and control computers. In any case, you are strongly advised to ignore such scams and never trust the messages.

A virus has been detected on your computer scam

The main purpose of this technical support scam is to trick people into believing that their computers are infected with a virus and calling the +1 (603) 652-1871 number. It claims that a detected virus might compromise data such as passwords, browsing history, files stored on the computer, and other confidential information. To prevent possible damage, users are urged to call the provided number within five minutes. This scam website may seem similar to an official Microsoft web page, however, none of the official Microsoft sites have anything to do with this site. Typically, criminals behind these scams attempt to deceive people into paying for so-called "support" services or software and giving remote access to their computers. Through such access, the scammers might be capable of stealing sensitive information such as credit card details, passwords, installing malware (like ransomware, Trojans), accessing personal files, etc. They can then misuse the accessed information to steal identities, personal accounts, make fraudulent purchases, transactions, and so on. You should ignore these scams. Note that users do not open these scam pages intentionally - in most cases, they are opened through other dubious websites, clicked deceptive ads, or by installed potentially unwanted applications (PUAs).

PUAs can open untrusted web pages and also collect various data relating to users' browsing habits. For example, IP addresses, entered search queries, addresses of visited pages, and geolocations. In some cases, they target sensitive, personal details as well. Furthermore, PUAs often serve intrusive ads (coupons, banners, surveys, pop-ups, etc.), which can open untrusted web pages or even run scripts designed to download/install other unwanted software.

Threat Summary:
Name A virus has been detected on your computer tech support scam
Threat Type Phishing, Scam, Social Engineering, Fraud.
Fake Claim This scam claims that the user's computer is infected with a virus.
Tech Support Scammer Phone Number +1 (603) 652-1871, 0808-143-3686
Related Domains hdpornxxx[.]online, proactiveininfo[.]online
Serving IP Address (hdpornxxx[.]online) 198.187.31.101
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.
Malware Removal (Windows)

To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Malwarebytes.
▼ Download Malwarebytes
To use full-featured product, you have to purchase a license for Malwarebytes. 14 days free trial available.

More examples of similar scams are "ERROR CODE 72", "Your Windows Is infected With (3) Viruses!" and "VIRUS ALERT FROM Windows". Typically, these scam pages are disguised as official Microsoft websites claiming that they have detected a virus, error, etc., and encouraging users to call the provided number immediately. As mentioned, users do not often visit these sites intentionally. If your browser opens dubious, deceptive web pages automatically, it is likely that a PUA is installed.

How did potentially unwanted applications install on my computer?

Potentially unwanted applications are distributed using the download and installation set-ups of other programs. This distribution method is known as "bundling". Developers include PUAs into set-ups as 'additional offers' and hope that users will not decline them. Typically, these offers are listed in "Custom", "Advanced", and other similar settings, however, many users fail to check and change these settings, thereby allowing additionally-included software to infiltrate. In some cases, rogue downloads and installations are caused by clicking deceptive advertisements that execute certain scripts.

How to avoid installation of potentially unwanted applications

Third party downloaders, installers, Peer-to-Peer networks (torrent clients, eMule, etc.), unofficial sites, freeware download pages, etc., often distribute PUAs or even malicious apps. Therefore, software and files should be downloaded only from official websites and through direct links. Check all "Advanced", "Custom" and other settings, and decline offers to download or install additionally-included, unwanted apps. Do not click advertisements that appear on dubious, untrusted websites, since they can open other untrusted websites or cause unwanted downloads and installations. Remove any, suspicious extensions, add-ons, and plug-ins installed on the browser. Also remove software of this kind that is installed on the operating system. If your computer is already infected with PUAs, we recommend running a scan with Malwarebytes for Windows to automatically eliminate them.

The appearance of "A virus has been detected on your computer" pop-up scam (GIF):

a virus has been detected on your computer scam appearance in gif

Text presented in "A virus has been detected on your computer" pop-up:

**** Do not restart the computer ****

 

 A virus has been detected on your computer.

 

The infections detected indicate some malicious downloads from the Internet that have caused serious problems for your computer.

 

Contact us immediately +1 (603) 652-1871 Contact technical support and report the following error code to your technician to repair your computer: O1AAT.

Screenshot of a background page:

a virus has been detected on your computer scam background page

Text in this page:

Your computer is infected.

 

The following data may be compromised:

 

1. Password.
2. Browsing history.
3. Confidential information (credit card).
4. Files on your hard drive.

 

To prevent your computer from being deactivated, please call us within 5 minutes.

 

Call immediately: +1 (603) 652-1871 (Free call).

 

Do not ignore this important warning. Closing this page will disable access to your computer to avoid further damage to your network.

Please contact us immediately. A technician will call you over the removal process.To prevent your computer from being deactivated, please call us within 5 minutes.

Another example of "A Virus Has Been Detected On Your Computer" pop-up scam:

A Virus Has Been Detected On Your Computer pop-up scam (2020-08-19)

Text presented within:

Text in the pop-up:

 

**** Do not restart your computer ****
A virus has been detected on your computer.

The infections detected indicate some malicious downloads from the internet that have caused serious problems to your computer.

Call Us Windows Support 0808-143-3686 Please contact technical support and report the following error code to a technician to repair your computer: O1AAT


Text in the background:

 

Your computer is infected.

The following data may be compromised:

1. Password.
2. Browsing history.
3. Confidential information (credit card).
4. Files on your hard drive.

To prevent your computer from being deactivated, please call us within 5 minutes.

Call Us Windows Support: 0808-143-3686 (toll free).

Do not ignore this important warning. Closing this page will disable access to your computer to avoid further damage to your network.

Please contact us immediately. A technician will guide you over the removal procedure. To prevent your computer from being deactivated, please call us within 5 minutes.

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Malwarebytes is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
▼ DOWNLOAD Malwarebytes By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. To use full-featured product, you have to purchase a license for Malwarebytes. 14 days free trial available.

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 a virus has been detected on your computer 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 a virus has been detected on your computer 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 plug-ins 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 a virus has been detected on your computer 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 (Chromium) logoRemove malicious extensions from Microsoft Edge:

Removing adware from Microsoft Edge step 1

Click the Edge menu icon Microsoft Edge (chromium) 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.

Removing adware from Microsoft Edge step 2

Optional method:

If you continue to have problems with removal of the a virus has been detected on your computer tech support scam, reset your Microsoft Edge browser settings. Click the Edge menu icon Microsoft Edge (chromium) menu icon (at the top right corner of Microsoft Edge) and select Settings.

Microsoft Edge (Chromium) reset step 1

In the opened settings menu select Reset settings.

Microsoft Edge (Chromium) reset step 2

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.

Microsoft Edge (Chromium) reset step 3

  • If this did not help, follow these alternative instructions explaining how to reset the 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 a virus has been detected on your computer tech support scam from your computer, please ask for assistance in our malware support forum.

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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 malware activity level today:

Medium threat activity

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

QR Code
A virus has been detected on your computer 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 A virus has been detected on your computer tech support scam on your mobile device.
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Platform: Windows

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