Do not trust this fake "Windows Security Alert" pop-up

Also Known As: "Windows firewall has blocked some features of this program" tech support scam
Distribution: Low
Damage level: Medium

"Windows firewall has blocked some features of this program" scam removal instructions

What is the "Windows firewall has blocked some features of this program" scam?

"Windows firewall has blocked some features of this program" is a deceptive pop-up window displayed by untrustworthy websites. It is disguised as a genuine Windows error message. The purpose of this scam is to trick users into calling an illegitimate technical support helpline. Trusting this fake alert can lead to financial loss, severe privacy issues, system infections and various other serious problems. Few visitors access sites promoting scams like this one - intentionally, most get redirected to them by intrusive adverts or by PUAs (Potentially Unwanted Applications). These apps do not need express user permission to be installed onto the system.

Windows firewall has blocked some features of this program scam

This fake pop-up window is presented as a "Windows Security Alert", informing users that supposedly the Windows Firewall has disabled certain features of a program. Specifically, this program has been blocked from accepting incoming network connections. Should this piece of software be unblocked, it will be likewise unblocked on all public networks that users connect to. The pop-up also shows the alleged name, publisher and location of this program. Additionally, it contains buttons to either keep blocking the nonexistent program or to unblock it. The fake alert urges users to call a "tech support" helpline. It must be emphasized that "Windows firewall has blocked some features of this program" is not a legitimate alert and all of the information presented in it is false. Typically, the telephone numbers provided by such scams are expensive, and the scammers behind them - generate profit by tricking users into staying on the line for as long as possible. These criminals may attempt to gain access and control over the users' devices by claiming to offer remote technical support services. They can infect the system with trojans, ransomware and other malware as well. In some cases, scammers also try to extract users' personal information, e.g. names, addresses, emails, banking account and credit card details, etc. To summarize, trusting the "Windows firewall has blocked some features of this program" scam poses a danger to device and user safety.

Aside from force-opening deceptive/scam pages, PUAs can cause redirects to sale-oriented/promotional, rogue, compromised and malicious websites. However, these applications can have other/additional abilities. Adware-types can deliver pop-ups, banners, coupons, surveys and other intrusive advertisements. They diminish the browsing experience and upon being clicked - redirect to similarly dangerous sites and some can stealthily download/install undesirable software. Other types of PUAs, classified as browser hijackers - modify browsers in order to promote fake search engines, and they can limit/deny access to the browser's settings. Illegitimate web searchers are usually unable to provide search results, so they redirect to Yahoo, Bing, Google and other genuine ones. Most PUAs can track data. They can monitor browsing activity (browsing and search engine histories) and gather personal information extracted from it (IP addresses, geolocations and other details). The collected data is often shared with third parties, seeking to misuse it for profit - potentially, by putting it to criminal use. To protect device integrity and user safety, all suspicious applications and browser extensions/plug-ins must be eliminated immediately upon detection.

Threat Summary:
Name "Windows firewall has blocked some features of this program" tech support scam
Threat Type Phishing, Scam, Social Engineering, Fraud
Fake Claim Scam claims Windows Firewall has blocked a malicious program
Tech Support Scammer Phone Number +1-800-374-1493
Related Domains chasxlogs34[.]xyz
Detection Names (chasxlogs34[.]xyz)
Fortinet (Phishing), Netcraft (Malicious), Forcepoint ThreatSeeker (Suspicious), Full List Of Detections (VirusTotal)
Serving IP Address (chasxlogs34[.]xyz) 166.62.10.188
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)

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"WIN.DLL011150 Error", "Your Windows 10 is infected with 5 viruses!" and "Attention 22 threats found" are a few examples of other technical support scams. The Web is full of various schemes that make likewise varied claims. The purpose may be to push users into: calling fake tech support/service lines; allowing unauthorized access to their devices; downloading/installing and/or purchasing nonoperational, untrustworthy and malicious software; making monetary transactions (e.g. fake shipping, registration, subscription and other payments); revealing personal and sensitive information, and so on. Regardless of what scams claim, request or demand, their end-goal is the same - to generate revenue for the scammers / cyber criminals behind them.

How did potentially unwanted applications install on my computer?

Some PUAs have "official" promotional (download) webpages, which are often promoted by scam sites. These applications can also be downloaded/installed together with other software. This false marketing technique of pre-packing ordinary products with unwanted or malicious additions - is called "bundling". By rushing through download/installation processes (e.g. by ignoring terms, skipping steps, etc.) - users risk inadvertently allowing bundled content into their devices. Intrusive ads can infiltrate these apps into systems as well. Upon being clicked, they can execute scripts to make stealthy downloads/installations.

How to avoid installation of potentially unwanted applications?

It is recommended to research products before download/installation and/or purchase. All downloads must be done from official and verified sources. Unofficial and free file-hosting websites, P2P sharing networks (BitTorrent, Gnutella, eMule, etc.) and other third party downloaders - can offer deceptive and bundled content; therefore, they are considered to be untrustworthy. When downloading/installing, it is important to read terms, explore all available options, use the "Custom" or "Advanced" settings and opt-out from additional apps, tools, features, and so on. It is advised to excercise caution when browsing. Intrusive advertisements appear legitimate, however they redirect to highly unreliable and questionable pages (e.g. gambling, pornography, adult-dating, etc.). In case of encounters with such adverts/redirects, the system must be inspected and all suspect applications and/or browser extensions/plug-ins removed without delay. If your computer is already infected with PUAs, we recommend running a scan with Malwarebytes for Windows to automatically eliminate them.

Text presented in "Windows firewall has blocked some features of this program" pop-up:

Windows Security Alert

 

Windows Firewall has blocked some features of this program

 

Windows Firewall has blocked this program from accepting incoming network connections. If you unblock this program, it will be unblocked on all public networks that you connect to. What are the risks of unblocking a program?

 

Name: FileLocator Remote Search Agent (Client)
Publisher: Mythicsoft Ltd
Path: C:\users\dmv\appdata\local\temp\flc6757.tmp.install\flr_clier
Network location: Public network
What are network locations?
Call helpline +1-800-374-1493

 

[Keep blocking] [Unblock]

The appearance of "Windows firewall has blocked some features of this program" pop-up scam (GIF):

Appearance of Windows firewall has blocked some features of this program scam

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 "windows firewall has blocked some features of this program" 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 firewall has blocked some features of this program" 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 firewall has blocked some features of this program" 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 "windows firewall has blocked some features of this program" 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 "windows firewall has blocked some features of this program" tech support scam from your computer, please ask for assistance in our malware support forum.

Post a comment:
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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
Windows firewall has blocked some features of this program tech support scam QR code
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