Home Malware Programs Rogue Anti-Virus Programs My Shield Security

My Shield Security

Posted: September 10, 2011

Threat Metric

Threat Level: 8/10
Infected PCs: 53
First Seen: September 12, 2011
Last Seen: January 7, 2021
OS(es) Affected: Windows

My Shield Security is a rogue anti-virus program from the same mold as other scamware products from the VirusDoctor family. Like its ancestors that SpywareRemove.com malware experts have also combed through, My Shield Security creates fake warning messages in lieu of possessing real threat-detection features and uses this bad information to ease you into purchasing My Shield Security's activation key. My Shield Security in particular has been observed to be distributed by dropper trojans that are installed by malicious browser add-ons, and the arbitrary presence of My Shield Security on your PC is usually an indicator of other infections, as well. You should remove My Shield Security by using appropriate security software to scan your PC, and if possible, do so in Safe Mode. Until then, My Shield Security may prevent you from using arbitrary programs under the false pretense that this blockade is protecting you from other infections.

My Shield Security - Shielding You from Your Own Software for Malevolent Reasons

My Shield Security is a close relative of other rogue anti-virus programs that share most of their code with some simple name exchanges and skin tweaks to make themselves appear to be different products. Examples of other rogue anti-virus products that our malware analysts have found to be equivalent to My Shield Security include Best Antivirus and Windows Trojans Sleuth. If you suspect that you've been infected by My Shield Security or a similar rogue security program, pay less attention to the name and more attention to the symptoms, as noted below.

My Shield Security and other scamware in its family will create two primary symptoms on any Windows PC:

  • My Shield Security will display fake infection warnings that try to convince you that large swathes of your operating system have been corrupted. These warnings can appear as toolbar pop-ups or even as web pages inside of your web browser. However, My Shield Security is the true cause of any problems with your PC, despite error messages like the samples below that imply otherwise:

    My Shield Security Warning
    Your system is still infected with malicious software. Activate antivirus protection to avoid privacy violation and theft of your credit card information.
    Click here to activate protection.

    My Shield Security Firewall Alert
    My Shield Security has prevented a program from accessing the internet

    "[random program .exe file]" is infected with "Virus.DOS.PM.733".
    Do you want to register your copy and remove all threats now?

    My Shield Security Warning
    My Shield Security has detected malware in your system.
    It is highly recommended that your register My Shield Security and remove the threats immediately.

  • My Shield Security will also attempt to block a variety of programs. SpywareRemove.com malware experts have noticed My Shield Security trying to block both security software as well as harmless applications like Notepad.

Shutting Down My Shield Security Before It Shields You from Your Own PC

Although deleting My Shield Security is not only possible but extremely advisable, SpywareRemove.com malware experts have found several methods by which it may try to avoid its own removal. Attempting to use an inadequately-powerful anti-malware program to delete My Shield Security, especially if used in circumstances where My Shield Security or related malware are still active, can result in a failure of the removal process with the following message:

Access violation at address 1322AA8F in module ms305c_231.exe read of address 00000000

In other cases, My Shield Security or a related infection (such as Zlob, Vundo or Fake Microsoft Security Essentials Alert trojans) may simply prevent you from opening your anti-malware program at all. To solve this problem and get rid of My Shield Security properly, SpywareRemove.com malware research team recommends that you use a Safe Mode reboot to disable all unnecessary programs. This will give you a pristine environment from which you can remove My Shield Security without hindrance.

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:



%Documents and Settings%\[UserName]\Local Settings\Application Data\[RANDOM CHARACTERS].exe File name: %Documents and Settings%\[UserName]\Local Settings\Application Data\[RANDOM CHARACTERS].exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

Registry Modifications

The following newly produced Registry Values are:

HKEY..\..\..\..{Subkeys}HKEY_CURRENT_USER\Software\[RANDOM CHARACTERS]HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Download "RunInvalidSignatures" = '1'HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\PhishingFilter "Enabled" = '0'HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings "ProxyEnable" = '1'HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings "ProxyServer" = '127.0.0.1:?'HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Associations "LowRiskFileTypes" = '.exe'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\..{RunKeys}HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "[RANDOM CHARACTERS].exe"
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