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Removal instructions for Security Shield


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What is Security Shield?

The Malwarebytes research team has determined that Security Shield is a fake anti-malware application. These so-called "rogues" use intentional false positives to convince users that their systems have been compromised. Then they try to sell you their software, claiming it will remove these threats. In extreme cases the false threats are actually the very trojans that advertise or even directly install the rogue. You are strongly advised to follow our removal instructions below.

How do I know if I am infected with Security Shield?

This is how the main screen of the rogue application looks:

main.png

You will find these icons in your taskbar:

icons.png

And see these warnings:

warning1.png

warning2.png

warning3.png

warning4.png

How did Security Shield get on my computer?

Rogue programs use different methods for spreading themselves. This particular one was installed by a fake online scanner.

How do I remove Security Shield?

Our program Malwarebytes' Anti-Malware can detect and remove this rogue application.

  • Please download Malwarebytes' Anti-Malware to your desktop.
  • Double-click mbam-setup.exe and follow the prompts to install the program.
  • At the end, be sure a check-mark is placed next to the following:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware

    [*]Then click Finish.

    [*]If an update is found, it will download and install the latest version.

    [*]Once the program has loaded, select Perform quick scan, then click Scan.

    [*]When the scan is complete, click OK, then Show Results to view the results.

    [*]Be sure that everything is checked, and click Remove Selected. Reboot your computer if prompted.

    [*]When completed, a log will open in Notepad. The rogue application should now be gone.

Is there anything else I need to do to get rid of Security Shield?

  • No, Malwarebytes' Anti-Malware removes Security Shield completely.

How would the full version of Malwarebytes' Anti-Malware help protect me?

We hope our application has helped you eradicate this malicious software. If your current security solution let this infection through, you might please consider purchasing the FULL version of Malwarebytes' Anti-Malware for additional protection.

As you can see below the full version of Malwarebytes' Anti-Malware would have protected you against the Security Shield rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.

protection1.png

Technical details for experts

Signs in a HijackThis log:


C:\DOCUME~1\{username}\LOCALS~1\APPLIC~1\azmjaweon.exe

O4 - HKCU\..\RunOnce: [azmjaweon] "C:\Documents and Settings\{username}\Local Settings\Application Data\azmjaweon.exe

Note: the RunOnce entry is created when the computer shuts down, so you will not see it in the log under normal circumstances.

Alterations made by the installer:



File System
===============
In the existing folder C:\Documents and Settings\{username}\Local Settings\Application Data
Adds the file azmjaweon.exe"="10:10 27/04/11 214016 bytes
In the existing folder C:\Documents and Settings\{username}\Start Menu\Programs
Adds the file Security Shield.lnk"="10:10 27/04/11 849 bytes

Registry
===============
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce]
"azmjaweon.exe"="C:\Documents and Settings\{username}\Local Settings\Application Data\azmjaweon.exe"

Malwarebytes' Anti-Malware log:

Malwarebytes' Anti-Malware 1.50.1.1100
www.malwarebytes.org

Database version: 6455

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

4/27/2011 10:20:42 AM
mbam-log-2011-04-27 (10-20-42).txt

Scan type: Quick scan
Objects scanned: 125795
Time elapsed: 2 minute(s), 49 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Folders Infected: 0
Files Infected: 2

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:

Folders Infected:
(No malicious items detected)

Files Infected:
c:\Documents and Settings\{username}\Local Settings\Application Data\azmjaweon.exe (Rogue.SecurityShield) -> Delete on reboot.
c:\documents and settings\{username}\start menu\Programs\security shield.lnk (Rogue.SecurityShield) -> Quarantined and deleted successfully.

As mentioned before the full version of Malwarebytes' Anti-Malware could have protected your computer against this threat.

We use different ways of protecting your computer(s):

  • Dynamically Blocks Malware Sites & Servers
  • Malware Execution Prevention

Save yourself the hassle and get protected.

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