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Removal instructions for System Security 2011

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Metallica

Metallica

    Spyware Veteran

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Content is republished with permission from Malwarebytes.

What is System Security 2011?

The Malwarebytes research team has determined that System Security 2011 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 System Security 2011?

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

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You will find these icons on your desktop and in your taskbar:

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And see these warnings:

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How did System Security 2011 get on my computer?

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

How do I remove System Security 2011?

Our program Malwarebytes' Anti-Malware can detect and remove this rogue application.
  • Please download Malwarebytes' Anti-Malware from here
    If you are unable to do this from the infected computer directly, transfer the file from another computer.
  • Download the mbam-setup.exe to your desktop.
  • Now make sure extensions are shown. To do this, please look here
  • Then rename the mbam-setup.exe: Posted Image to iexplore.exe
  • Then launch iexplore.exe in order to install Malwarebytes' Anti-malware
  • Once Malwarebytes' Anti-Malware is installed, navigate to your Program Files\Malwarebytes' Anti-Malware folder and locate the mbam.exe in there:

    Posted Image

    rename it to iexplore.exe
  • Now doubleclick iexplore.exe to launch Malwarebytes' Anti-malware.
  • Click the "Update" tab and click the "Check For updates" button.
  • Once the program has loaded and updates were downloaded, select "Perform Quick Scan", then click Scan.
  • The scan may take some time to finish,so please be patient.
  • When the scan is complete, click OK, then Show Results to view the results.
  • Make sure that everything is checked, and click Remove Selected.
  • When disinfection is completed, a log will open in Notepad and you may be prompted to Restart, so please allow MBAM to restart.
  • The log is automatically saved by MBAM and can be viewed by clicking the Logs tab in MBAM.

Is there anything else I need to do to get rid of System Security 2011?

  • No, Malwarebytes' Anti-Malware removes System Security 2011 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 System Security 2011 rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.


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Technical details for experts

Signs in a HijackThis log:
C:\WINDOWS\system32\RukWS6uQXym.exe

O4 - HKLM\..\Run: [SZ4tgOLrbKev1c08234A] C:\WINDOWS\system32\RukWS6uQXym.exe
O4 - HKLM\..\Run: [hhmPZtgO3fI2v1c] C:\Documents and Settings\{username}\Application Data\svhostu.exe

Note: the startup names and some of the filenames are random.

Alterations made by the installer:
  File System
  ===============
    In the existing folder C:\Documents and Settings\{username}\Application Data
      Adds the file ldr.ini"="10:19 26/10/11 1207 bytes
      Adds the file svhostu.exe"="10:19 26/10/11 106496 bytes
    Adds the folder C:\Documents and Settings\{username}\Application Data\DwscY0qxG9zFoD
    Adds the folder C:\Documents and Settings\{username}\Application Data\GFB8oED7kS6jCjX
    Adds the folder C:\Documents and Settings\{username}\Application Data\IikWS6uQX
      Adds the file System Security  2011.ico"="10:19 26/10/11 12878 bytes
    Adds the folder C:\Documents and Settings\{username}\Application Data\tYH0qxTNpRBoDiS
    In the existing folder C:\Documents and Settings\{username}\Desktop
      Adds the file System Security  2011.lnk"="10:19 26/10/11 1705 bytes
    In the existing folder C:\Documents and Settings\{username}\Local Settings\Temp
      Adds the file 1.tmp"="10:19 26/10/11 5 bytes
      Adds the file 2.tmp"="10:24 26/10/11 5 bytes
      Adds the file svhostu.exe"="10:19 26/10/11 106496 bytes
    Adds the folder C:\Documents and Settings\{username}\Start Menu\Programs\System Security  2011
      Adds the file System Security  2011.lnk"="10:19 26/10/11 1717 bytes
    In the existing folder C:\WINDOWS\system32
      Adds the file RukWS6uQXym.exe"="10:19 26/10/11 1723392 bytes

  Registry
  ===============
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
      "hhmPZtgO3fI2v1c"="'C:\Documents and Settings\{username}\Application Data\svhostu.exe'"
      "SZ4tgOLrbKev1c08234A"="'C:\WINDOWS\system32\RukWS6uQXym.exe'"
    [HKEY_CURRENT_USER\Software\System Security  2011]
    [HKEY_CURRENT_USER\Software\System Security  2011\RukWS6uQXym]
      "prvradio2"="0"
      "prvradio1"="1"
      "fwradio2"="0"
      "fwradio1"="1"


Malwarebytes' Anti-Malware log:
Malwarebytes' Anti-Malware 1.51.2.1300
www.malwarebytes.org

Database version: 8021

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

10/26/2011 10:28:02 AM
mbam-log-2011-10-26 (10-28-02).txt

Scan type: Quick scan
Objects scanned: 144980
Time elapsed: 1 minute(s), 5 second(s)

Memory Processes Infected: 1
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 2
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 6

Memory Processes Infected:
c:\WINDOWS\system32\rukws6uqxym.exe (Backdoor.Bot) -> 800 -> Unloaded process successfully.

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SZ4tgOLrbKev1c08234A (Backdoor.Bot) -> Value: SZ4tgOLrbKev1c08234A -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hhmPZtgO3fI2v1c (Spyware.Zeus) -> Value: hhmPZtgO3fI2v1c -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
c:\WINDOWS\system32\rukws6uqxym.exe (Backdoor.Bot) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\application data\svhostu.exe (Spyware.Zeus) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\Desktop\svhostu.exe (Spyware.Zeus) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\local settings\Temp\svhostu.exe (Spyware.Zeus) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\Desktop\system security  2011.lnk (Rogue.SystemSecurity) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\application data\ldr.ini (Malware.Trace) -> 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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