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Firewall Breach Detected Scam

Also Known As: "Firewall Breach Detected" virus
Type: Adware
Damage level: Medium

What is Firewall Breach Detected?

Displayed by a malicious website, "Firewall Breach Detected" is a fake error message claiming that the system is infected. Research shows that users are often redirected to this website by various potentially unwanted programs (PUPs).

In addition to redirects, PUPs misuse system resources, deliver 'malvertising' ads (pop-ups, coupons, banners, etc.), and gather private information.

Firewall Breach Detected adware

The "Firewall Breach Detected" error states that the system has detected a ransomware-type infection and, for this reason, Windows Firewall has been disabled. It is also stated that the infection might lead to permanent data loss, identity theft, private information (logins/passwords) leakage, and other similar issues.

Users are encouraged to immediately remove this malware, however, to do so, they must first consult with Microsoft's 'network security advisor' and 'certified technician' via a telephone number ("+1-800-683-9841") provided. They then supposedly receive help resolving these issues. In fact, "Firewall Breach Detected" is fake and has nothing to do with Microsoft.

Cyber criminals claim to be certified technicians and attempt to trick users into paying for technical support that is not required - the malware simply does not exist. In addition, these people usually demand remote access to users' computers. Once connected, they stealthily change system settings and/or install malware.

These people claim to detect even more errors and offer further support for an additional fee. For these reasons, never attempt to contact these people. This error can be removed simply by closing the web browser or restarting the system. Some PUPs and malicious websites stealthily run various processes (e.g., mining cryptocurrency) in the background without users’ permission.

By misusing resources, these PUPs/websites significantly diminish computer performance. As mentioned above, PUPs deliver malicious ads. To achieve this, developers employ various tools that enable placement of third party graphical content on any site. The ads often conceal underlying website content, thereby diminishing the browsing experience.

Furthermore, some may redirect to malicious websites and/or run scripts that download and install malware. Thus, clicking them risks further computer infections.

PUPs record various user-system information (such as keystrokes, URLs visited, search queries, IP addresses, etc.) that might contain personal details. The collected data is usually sold to third parties. For these reasons, we strongly advise you to uninstall all PUPs immediately.

Threat Summary:
Name "Firewall Breach Detected" 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)

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"Firewall Breach Detected" is virtually identical to Exploit.SWF.bd Virus, Your Computer Is In Blocked State, Internet Explorer Critical ERROR, and dozens of other fake errors. All claim that the system is infected, missing files or damaged in other similar ways, however, "Firewall Breach Detected" and other similar errors are designed only to extort money from unsuspecting users.

As with fake errors, PUPs share many similarities. Most of these apps offer "useful features" to create the impression of legitimacy, however, potentially unwanted programs are designed only to generate revenue for the developers. Most are useless for regular users and pose a threat to your privacy and Internet browsing safety.

How did adware install on my computer?

Although some PUPs have official download/installation websites, most are proliferated using malicious ads and a deceptive marketing method called "bundling". Therefore, these programs usually infiltrate systems without permission, or users install them inadvertently without their consent.

Bundling is stealth installation of unwanted apps together with regular (mostly free) software. Developers are aware that many users skip download/installation steps and thus hide bundled apps within the "Custom/Advanced" settings or other sections of these processes.

By rushing download/installation procedures and clicking various ads, users expose their systems to risk of various infections.

How to avoid installation of potentially unwanted applications?

To prevent system infiltration by PUPs, be very cautious when browsing the Internet and particularly downloading/installing software. Bear in mind that criminals invest a great deal of resources into designing malicious ads. Therefore, most appear genuine, however, they usually lead to gambling, survey, pornography, adult dating, and other similar websites.

If you encounter such websites, avoid clicking ads until all suspicious programs/browser extensions are removed. Furthermore, select "Custom/Advanced" settings, carefully analyze each window of the download/installation dialogues, and opt-out of all additionally-included programs.

Third party download/installation tools are monetized by promoting rogue apps (the bundling method) and should never be used. The key to computer safety is caution.

Text presented within first "Firewall Breach Detected" pop-up:

Error: “0x8007042C”
FIREWALL BREACH DETECTED
WINDOWS FIREWALL STATUS: DISABLED

REASON: RANSOMWARE ATTACK DETECTED
INTERNAL CONFIGURATION: ALTERED

YOUR WINDOWS FIREWALL HAS BEEN DISABLED
POSSIBLY DUE TO INTERNET INFECTION OR UN-AUTHORISED CONNECTION THROUGH YOUR IP-ADDRESS

IT CAN CAUSE THE FOLLOWING THINGS:
1) POSSIBLE DATA LOSS
2) IDENTITY THEFT
3) LOSS OF EMAIL/SOCIAL NETWORKING/ PERSONAL PASSWORDS
4) CREDENTIALS STORED OR USED ON THE COMPUTER.

CONSULT MICROSOFT NETWOR SECURITY ADVISOR IMMEDIATELY ON THE TOLL FREE NUMBER +18006839841

Screenshot of second "Firewall Breach Detected" pop-up:

Firewall Breach Detected scam second pop-up

Text presented within the second pop-up:

Your system has detected possible Suspicious Ransomware Activity, please call the toll free number below for a Microsoft certified technician to help you resolve the issue: +1-800-683-9841
For your safety, please do not open Internet browser to avoid data corruption to the registry of your Operating System

Please contact support TOLL FREE +1-800-683-9841

PLEASE DO NOT SHUT DOWN OR RESTART THE COMPUTER, DOING THAT MAY LEAD TO DATA LOSS AND POSSIBLE FAILURE OF THE OPERATING SYSTEM, AND POTENTIAL NON BOOTABLE SITUATION RESULTING IN COMPLETE DATA LOSS.

CONTACT MICROSOFT CERTIFIED TECHNICIANS TO RESOLVE THE ISSUE TOLL FREE +1-800-683-9841

Your system has detected possible Suspicious Ransomware Activity, please call the toll free number below for a Microsoft certified technician to help you resolve the issue.

The appearance of "Firewall Breach Detected" tech support scam pop-up (GIF):

Firewall Breach Detected scam gif

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Quick menu:

Adware removal:

Windows 11 users:

Accessing Apps and Features in Windows 11

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:

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.

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.

macOS (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.

Firewall Breach Detected adware 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 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:

Internet Explorer logoRemove malicious add-ons from Internet Explorer:

Removing Firewall Breach Detected ads 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 Firewall Breach Detected ads from Internet Explorer step 2

Optional method:

If you continue to have problems with removal of the "firewall breach detected" 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.

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 Firewall Breach Detected  ads 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, select these entries and click the trash can icon.

Removing Firewall Breach Detected ads from Google Chrome step 2

Optional method:

If you continue to have problems with removal of the "firewall breach detected" virus, 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 Firewall Breach Detected ads 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 "Extensions", in the opened window, remove all recently-installed suspicious browser plug-ins.

Removing Firewall Breach Detected ads from Mozilla Firefox step 2

Optional method:

Computer users who have problems with "firewall breach detected" virus 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 "firewall breach detected" virus, 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.

Post a comment:
If you have additional information on "firewall breach detected" virus or it's removal please share your knowledge in the comments section below.

"Firewall Breach Detected" error states that the system has detected ransomware-type infection and, for this reason, Windows Firewall has been disabled. It is also stated that the infection might lead to permanent data loss, identity theft, private information (logins/passwords) leakage, and other similar issues. Users are encouraged to immediately remove this malware, however, to do so, users must firstly consult with Microsoft's network security advisor and certified technician via a telephone number ("+1-800-683-9841") provided. Users then supposedly receive help resolving these issues, however, "Firewall Breach Detected" error is not genuine and it has nothing to do with the Microsoft company. Cyber criminals claim to be certified technicians and attempt to trick users into paying for technical support that is not required - said malware simply does not exist. In addition, these people usually demand a remote access to user's computer. Once connected, criminals stealthily change system's settings and/or install malware. , these people claim to detect even more errors and offer further support for an additional fee. For these reasons, Never attempt to contact these people. This error can be removed simply by closing the web browser or restarting the system. Furthermore, some PUPs and malicious websites stealthily run various processes (e.g., mine cryptocurrency) in system's background, without users’ permission. By misusing resources, PUPs/websites significantly diminish computer overall performance. As mentioned above, PUPs deliver malicious ads. To achieve this, developers employ various tools that enable placement of third party graphical content on any site. These ads often conceal underlying website content, thereby diminishing Internet browsing experience. Furthermore, some may redirect to malicious websites and/or run scripts that download and install malware. Thus, clicking them risks further computer infections. that, PUPs record various user-system information (such as keystrokes, URLs visited, search queries, IP addresses, etc.) that might contain personal details. Collected data is usually sold to third parties. For these reasons, we strongly advise users to uninstall all PUPs immediately.

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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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Software uninstall instructions
Malware activity

Global malware activity level today:

Medium threat activity

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

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