“Harmful Software Detected” Popup - How To Remove?

 

“Harmful software detected” popup is a fake security alert produced by rogue anti-spyware program called System Security. Basically, this fake alert states that your computer has been infected with malicious software and that you should use System Security program to remove harmful software form your computer. The message reads as follows:

System Security
Harmful software detected
System Security has detected harmful software that can lead to your PC crash. Remove them now by clicking Remove All button below.

System Security provides numerous fake security threats, for example: Spyware.IEMonster.d, Spyware.KnownBadSites and others. “Harmful software detected” popup is one of them. The main goal of this particular scam popup is to make you think that your computer is infected and that you should purchase System Security in order to protect your PC by removing the accumulations of malware.

However, if you are constantly popped this type of alerts on your computer up, there is one thing you need to do. You ought to remove “Harmful software detected” popup in the two different ways possible. You can apply automatic malware removal utilities such as Reimage, Spyhunter or Malwarebytes. Or you can use the free removal guide below to remove System Security and related malware. Automatic removal provides you the better chances that you will get rid of “Harmful software detected” app permanently versus manual removal, since this method is more comprehensive in comparison with the manual approach.

harmful-software-detected

“Harmful software detected” is rogue advertising software or, simply, malvertising software, as it advertises malicious software in a devious manner. The most worrying fact about this adware is that the purchase offer for System Security rogue anti-spyware application includes the request to give your credit card number. This kind of request alone is a clear indication that you are dealing with online frauds. Once you receive such suggestions, you have to decline any purchase orders and restrain from any software downloads.

Another point worth mentioning is that “Harmful software detected” bogus application can prevent you from installing legitimate security software. To solve this issue you have to reboot your computer into the Safe Mode with networking and only then perform the installation of your chosen antivirus utility. Once you have this done, you can get your wind and scan your computer’s system with one of the security scanners indicated above. If any of the issues related with “Harmful software detected” pop-up persists, you can contact us by writing a comment below.


Automatic "Harmful software detected" Popup removal tools

 

Other tools

 
  0   0
    Spyhunter
  0   0
    Malwarebytes' Anti-Malware
 
Note: Reimage trial provides detection of parasites and assists in their removal for free. You can remove detected files, processes and registry entries yourself or purchase a full version.   We might be affiliated with some of these programs. Full information is available in disclosure

How to remove "Harmful software detected" Popup using Windows Control Panel

Many hijackers and adware like "Harmful software detected" Popup install some of their components as regular windows programs as well as additional software. This part of malware can be uninstalled from Control Panel. To access it, do the following.
  • Start→Control Panel (older Windows) or press Windows Key→Search and enter Control Panel (Windows 8);
    Control panel
  • Choose Uninstall Program;
    Programs and features
  • Go through a list of programs and select entries related to "Harmful software detected" Popup .
    Remove toolbars
  • Click uninstall button.
    Uninstall
  • In many cases anti-malware programs are better at detecting related parasites, thus I recommend installing Spyhunter or Reimage to identify other programs that might be a part of this infection.
    Scan with spyhunter
This method will not remove some of browser plugins therefore proceed to the next part of the removal guide.
Removing "Harmful software detected" Popup from your browsers

  Top Remove malicious extensions from Internet Explorer

  • Press on the Gear icon→Manage Add-ons.
    Add-on
  • Go through Toolbars and extensions. Remove everything related to "Harmful software detected" Popup and items you do not know that are made not by Google, Microsoft, Yahoo, Oracle or Adobe.
    Disable add-ons
  • Close the Options.

(Optional) Reset your browser’s settings

If you are still experiencing any issues related to "Harmful software detected" Popup, reset the settings of your browser to its default settings.

  • Press on the Gear icon->Internet Options.
    Internet options
  • Choose the Advanced tab and click on the Reset button.
    Reset settings
  • Select a Delete personal settingscheckbox and click on the Reset button.
    Reset approve
  • Click on the Close button on the confirmation box, then close your browser.
    Reset

If you cannot reset your browser settings and the problem persists, scan your system with an anti-malware program.

  Top Removing "Harmful software detected" Popup from Chrome

  • Click on the menu button on the top right corner of a Google Chrome window. Select “Settings”.
    Open settings
  • Click “Extensions” on the left menu bar.
  • Go through the extensions list and remove programs you do not need, especially similar to "Harmful software detected" Popup. Click on the trash bin icon next to "Harmful software detected" Popup or other add-ons you want to remove.
    Remove extensions
  • Press on the “Remove” button on the Confirmation window.
    Remove approve
  • If unsure, you can disable them temporarily.
    Disable extension
  • Restart Chrome.

(Optional) Reset your browser’s settings

If you are still experiencing any issues related to "Harmful software detected" Popup, reset the settings of your browser to its default settings.

  • Click on Chrome’s menu button (three horizontal lines) and select Settings.
    Open settings
  • Scroll to the end of the page and click on the Reset settings button.
    Reset settings
  • Click on the Reset button on the confirmation box.
    Reset approve

If you cannot reset your browser settings and the problem persists, scan your system with an anti-malware program.

  Top Removing "Harmful software detected" Popup from Firefox

  • Click on the menu button on the top right corner of a Mozilla window and select the “Add-ons” icon (or press Ctrl+Shift+A on your keyboard).
    Select add-on
  • Go through Extensions and Addons list, remove everything "Harmful software detected" Popup related and items you do not recognise. If you do not know the extension and it is not made by Mozilla, Google, Microsoft, Oracle or Adobe then you probably do not need it.
    Remove add-on

(Optional) Reset your browser’s settings

If you are still experiencing any issues related to "Harmful software detected" Popup, reset the settings of your browser to its default settings.

  • Click on the menu button on the top right corner of a Mozilla Firefox window. Click on the Help button.
    Help button
  • Choose Troubleshooting Information on the Help menu.
    Troubleshooting
  • Click on the Reset Firefox button.
    Refresh firefox
  • Click on the Reset Firefox button on the confirmation box. Mozilla Firefox will close and change the settings to default.
    Refresh firefox approve

If you cannot reset your browser settings and the problem persists, scan your system with an anti-malware program.

How to remove "Harmful software detected" Popup from Microsoft Edge:  Top


Resetting Microsoft Edge setting (Method 1)

  • Open Microsoft Edge and click on More actions button (three dots at the top right corner of the screen), then choose Settings.
    Open settings
  • In the Settings window, click Choose what to clear button.
    Choose clear
  • Select everything that you want to remove and click Clear.
    Clear browsing data
  • Right click on Start and choose Task manager.
    Open task manager
  • In the Processes tab right click on Microsoft Edge and select Go to details.
    Go to details
  • In the Details look for entries named Microsoft Edge, right click on each of them and select End Task to end these entries.
    End Edge task

If the first method didn't work for you, follow the steps of advanced method below. Make sure you backup your data before completing these steps.

Resetting Microsoft Edge setting (Method 2)

  • Navigate to the following folder: C:\Users\%username%\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe Select all of the entries in this folder, right click on them and select Delete.
    Delete files
  • Click Start button and type in “Windows power”. Right click on the Windows PowerShell entry and choose Run as administrator.
    Open powershell
  • When Administrator: Windows PowerShell window appears on your screen, paste in this line after PS: cd C:\WINDOWS\system32 and press Enter: Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml" -Verbose}
    Run command
Once you finish these steps, "Harmful software detected" Popup should be removed from your Microsoft Edge browser.

  Top Removing "Harmful software detected" Popup from Safari (Mac OS X)

  • Click on the Safari menu.
  • Choose Preferences.
    Open preferences
  • Click on the Extensions Tab.
  • Click on the Uninstall button near the "Harmful software detected" Popup. Remove all other unknown or suspicious entries too. If you are not sure whether you need the extension or not, you can simply uncheck the Enable check-box to disable the extension temporarily.
    Extensions
  • Restart Safari.

(Optional) Reset your browser’s settings

If you are still experiencing any issues related to "Harmful software detected" Popup, reset the settings of your browser to its default settings.

  • Click on the Safari menu on the top left corner of the screen. Select Reset Safari.
    Choose reset
  • Select which options you want to reset (usually all of them come preselected) and click on the Reset button.
    Reset

If you cannot reset your browser settings and the problem persists, scan your system with an anti-malware program.

Manual removal

 

Important Note: Although it is possible to manually remove "Harmful software detected" Popup, such activity can permanently damage your system if any mistakes are made in the process, as advanced spyware parasites are able to automatically repair themselves if not completely removed. Thus, manual spyware removal is recommended for experienced users only, such as IT specialists or highly qualified system administrators. For other users, we recommend using Reimage or other tools found on 2-viruses.com.

Processes:
Files:
Registers:
External decryptor:

     
 

About the author

 - Main Editor
I have started 2-viruses.com in 2007 after wanting to be more or less independent from single security program maker. Since then, we kept working on this site to make internet better and safer place to use.
 
June 12, 2009 17:17, July 5, 2017 08:28
   
 

7 thoughts on ““Harmful software detected” Popup

7 Comments
  1. I tried downloading this automatic spyware removal download, but the Security Tool pop up won’t let me clean my computer, it won’t let me download anything to get rid of the worm viruses. What should I do, I can’t use my computer because of this Security tool Fire Alert. Every time I try using my start menu to delete the Security tool Alert, it keeps asking me to clean it and then i have to purchase it.

Leave a Reply

Your email address will not be published. Required fields are marked *