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Removal instructions for Security Essentials 2011

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Metallica

Metallica

    Spyware Veteran

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Content is republished with permission from Malwarebytes.

What is Security Essentials 2011?

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

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

Posted Image

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

Posted Image

And see these warnings:

Posted Image

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How did Security Essentials 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 Security Essentials 2011?

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 Essentials 2011?

  • No, Malwarebytes' Anti-Malware removes Security Essentials 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 Security Essentials 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:\Documents and Settings\{username}\Application Data\Security Essentials 2011\SE2010.exe

O4 - HKCU\..\Run: [updatesst] "C:\Documents and Settings\{username}\Application Data\Security Essentials 2011\SE2010.exe"

Alterations made by the installer:
  File System
  ===============
    Adds the folder C:\Documents and Settings\{username}\Application Data\Security Essentials 2011
      (INSTALLER MOVED TO THIS FOLDER)(FILE) SE2010.exe"="23:56 03/11/10 2520576 bytes
    Adds the folder C:\Documents and Settings\{username}\Application Data\Security Essentials 2011\seyviodkhls
      Adds the file seonakuoils.cfg"="20:02 15/11/10 550 bytes
    In the existing folder C:\Documents and Settings\{username}\Application Data\Microsoft\Internet Explorer\Quick Launch
      Adds the file Security Essentials 2011.lnk"="20:02 15/11/10 1048 bytes
    In the existing folder C:\Documents and Settings\{username}\Desktop
      Adds the file Security Essentials 2011.lnk"="20:02 15/11/10 1070 bytes
    In the existing folder C:\Documents and Settings\{username}\Start Menu
      Adds the file Security Essentials 2011.lnk"="20:02 15/11/10 1070 bytes
    Adds the folder C:\Program Files\Securityessentials2010

  Registry
  ===============
    [HKEY_CLASSES_ROOT\SE2010.DocHostUIHandler]
      "(Default)"="'Implements DocHostUIHandler'"
    [HKEY_CLASSES_ROOT\SE2010.DocHostUIHandler\Clsid]
      "(Default)"="'{3F2BBC05-40DF-11D2-9455-00104BC936FF}'"
    [HKEY_CLASSES_ROOT\CLSID\{3F2BBC05-40DF-11D2-9455-00104BC936FF}]
      "(Default)"="'Implements DocHostUIHandler'"
    [HKEY_CLASSES_ROOT\CLSID\{3F2BBC05-40DF-11D2-9455-00104BC936FF}\ProgID]
      "(Default)"="'SE2010.DocHostUIHandler'"
    [HKEY_CLASSES_ROOT\CLSID\{3F2BBC05-40DF-11D2-9455-00104BC936FF}\LocalServer32]
      "(Default)"="'C:\DOCUME~1\{username}\APPLIC~1\SECURI~1\SE2010.exe'"
    [HKEY_CURRENT_USER\Software\SE2010]
      "LastScan"="'15.11.2010 20:03'"
      "LastD"="'15'"
      "VirList"="'42|19|0|47|12|51|45|41|22|46|33|12|7|37|17|8|20|50|14|3|38|51|12|18|0|4'"
      "LastVFC"="'25'"
    [HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
      "Shell"="'"C:\Documents and Settings\{username}\Application Data\Security Essentials 2011\SE2010.exe" /hide'"


Malwarebytes' Anti-Malware log:
Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 5121

Windows 5.1.2600 Service Pack 3
Internet Explorer 6.0.2900.5512

11/15/2010 8:12:54 PM
mbam-log-2010-11-15 (20-12-54).txt

Scan type: Quick scan
Objects scanned: 125125
Time elapsed: 5 minute(s), 31 second(s)

Memory Processes Infected: 1
Memory Modules Infected: 0
Registry Keys Infected: 1
Registry Values Infected: 2
Folders Infected: 3
Files Infected: 4

Memory Processes Infected:
C:\Documents and Settings\{username}\Application Data\Security Essentials 2011\SE2010.exe (Rogue.SecurityEssentials) -> Unloaded process successfully.

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_CURRENT_USER\SOFTWARE\SE2010 (Rogue.Securityessentials2010) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\updatesst (Rogue.SecurityEssentials) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell (Rogue.SecurityEssentials) -> Quarantined and deleted successfully.

Folders Infected:
C:\Documents and Settings\{username}\Application Data\Security Essentials 2011 (Rogue.SecurityEssentials) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Application Data\Security Essentials 2011\seyviodkhls (Rogue.SecurityEssentials) -> Quarantined and deleted successfully.
C:\Program Files\Securityessentials2010 (Rogue.SecurityEssentials2010) -> Quarantined and deleted successfully.

Files Infected:
C:\Documents and Settings\{username}\Application Data\Security Essentials 2011\SE2010.exe (Rogue.SecurityEssentials) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Application Data\Security Essentials 2011\seyviodkhls\seonakuoils.cfg (Rogue.SecurityEssentials) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Desktop\Security Essentials 2011.LNK (Rogue.SecurityEssentials) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Application Data\Microsoft\Internet Explorer\Quick Launch\Security Essentials 2011.LNK (Rogue.SecurityEssentials) -> 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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