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How to remove Security Defender virus (uninstall guide)

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Security Defender virus description

First thing you need to know about Security Defender program is the fact that this is a rogue security software. It has the cruelest of intentions – to scare users with plenty of deceitful information about various fake threats on your system and on this basis to prompt you into buying its license. Surely, this isn’t a fair way of doing business and attracting new customers. This program is the same as PC Defender Plus that has been previously described by us. None of these programs is actually worth considering when selecting the decent security software for your computer. These applications are equally helpless when it comes to detection or removal of real system vulnerabilities.

Security Defender screenshot:

Security Defender virus

Security Defender malware aftermath

Security Defender malware doesn’t come to your system through legal ways of infiltration. It doesn’t ask for your permission to come into your machine. Thus, its infiltration process is hidden from your attention. You cannot easily terminate this installation process ahead of time. Thus, it is a really unexpected thing to see this fake antivirus up and running on your computer. This happens automatically, by the way. The hoax launches itself together with each system startup. This amendment into your system settings was introduced by this scam during the initial installation procedure without your consent.

Security Defender malware immediately begins to imitate scanning of your system. It reports fake security alerts, warnings and notifications to scare you even more with the bunch of deceitful and unfair statements about poor security status of your computer. The main trick is when this hoax offers you to buy its so-called licensed version to assist you in virus removal. The point is that all those threats reported by Security Defender scam aren’t real. These are invented threats; as for real security vulnerabilities, Security Defender will never help your system. It will neither remove real viruses nor will it warn you about their presence ahead of time. Hence, the only logical solution in this case is to remove this scam from your computer immediately, without loitering or hesitation.

Ways to remove Security Defender scam

We hope you will not buy the scam called Security Defender. This is not the program worth considering. If you have already purchased its license by mistake, please dispute the charges immediately via your good bank. Finally, please follow the removal guide to exterminate Security Defender malware from your system effectively with the help of GridinSoft Trojan Killer.

Security Defender removal video at YouTube

Detailed removal guide:


Removal sequence of steps:

  1. Download the installer of GridinSoft Trojan Killer from the direct link https://trojan-killer.net/download.php from some different clean (uninfected computer), for example, available at your work or with your friends or relatives
  2. Copy the installer of GridinSoft Trojan Killer onto your USB/Flash drive
  3. Transfer the USB/Flash drive to the PC infected with Security Defender
  4. Copy the installer of GridinSoft Trojan Killer to the desktop of the infected PC
  5. Run the installer of GridinSoft Trojan Killer as Administrator (right-click the installer with your mouse and select the respective option)
    For XP users: Right-click the installer of GridinSoft Trojan Killer with your mouse and click “Run as…”. Uncheck the box “Protect my computer and data from unauthorized program activity” and click OK.
  6. Install GridinSoft Trojan Killer, make sure to uncheck the box “Start Trojan Killer” at the end of installation process
  7. Run GridinSoft Trojan Killer as Administrator (right-click the desktop icon of GridinSoft Trojan Killer with your mouse and select the respective option)
  8. Update GridinSoft Trojan Killer, run the scan and remove all infected items found during the scan with Trojan Killer
  9. Restart your computer to apply the changes after malware removal
  10. Additionally, make sure to scan your system with Kaspersky’s TDSS Killer downloadable here.

Associated files:

%commondesktopdir%Security Defender.lnk
%commonprograms%Security DefenderSecurity Defender.lnk
%commonprograms%Security DefenderSecurity Defender Help and Support.lnk
%commonprograms%Security DefenderSecurity Defender.lnk

Associated registry entries:

HKCUSoftwareMicrosoftWindowsCurrentVersionRunpcdfsvc %commonappdata%pcdfdata[rnd].exe /min
HKCUSoftwareClasses.exe [rnd_2] HKCUSoftwareClasses.exeContent Type application/x-m
HKCUSoftwareClasses.exeDefaultIcon %1
HKCUSoftwareClasses.exeshellopencommand "%commonappdata%pcdfdata[rnd].exe" /ex "%1" %*
HKCUSoftwareClasses.exeshellopencommandIsolatedCommand "%1" %*
HKCUSoftwareClasses.exeshellrunascommand "%1" %*
HKCUSoftwareClasses.exeshellrunascommandIsolatedCommand "%1" %*

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