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What is Windows Optimal Solution?

The Malwarebytes research team has determined that Windows Optimal Solution 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 Windows Optimal Solution?

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

main.png

You will find this icon in your taskbar:

icons.png

And see these warnings:

warning1.png

warning2.png

warning4.png

How did Windows Optimal Solution get on my computer?

Rogue programs use different methods for spreading themselves. This particular one was pretending to be a movie.

How do I remove Windows Optimal Solution?

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: mbamsetupexe.png to explorer.exe: mbamsetupexplorer.png
  • Then launch explorer.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:
    mbamexe.png
    rename it to explorer.exe:
  • Now doubleclick explorer.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 Windows Optimal Solution?

  • No, Malwarebytes' Anti-Malware removes Windows Optimal Solution 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 Windows Optimal Solution 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:

Running processes:
C:\Documents and Settings\{username}\Application Data\codysk.exe

Note: the filename is random

Alterations made by the installer:



File System
===============
In the existing folder C:\Documents and Settings\{username}\Application Data
Adds the file codysk.exe"="11:55 13/02/11 2571264 bytes


Registry
===============
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe]
"Debugger"="'svchost.exe'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe]
"Debugger"="'svchost.exe'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msascui.exe]
"Debugger"="'svchost.exe'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msmpeng.exe]
"Debugger"="'svchost.exe'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe]
"Debugger"="'svchost.exe'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore]
"DisableSR"="1"
[HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
"Shell"="'C:\Documents and Settings\{username}\Application Data\codysk.exe'"

Malwarebytes' Anti-Malware log:

Malwarebytes' Anti-Malware 1.50.1.1100
www.malwarebytes.org

Database version: 5752

Windows 5.1.2600 Service Pack 3
Internet Explorer 6.0.2900.5512

2/13/2011 12:10:13 PM
mbam-log-2011-02-13 (12-10-13).txt

Scan type: Quick scan
Objects scanned: 124184
Time elapsed: 1 minute(s), 45 second(s)

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

Memory Processes Infected:
c:\documents and settings\{username}\application data\codysk.exe (Trojan.FakeAlert) -> 1692 -> Unloaded process successfully.

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msascui.exe (Security.Hijack) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msmpeng.exe (Security.Hijack) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe (Security.Hijack) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe\Debugger (Security.Hijack) -> Value: Debugger -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe\Debugger (Security.Hijack) -> Value: Debugger -> Quarantined and deleted successfully.

Folders Infected:
(No malicious items detected)

Files Infected:
c:\documents and settings\{username}\application data\codysk.exe (Trojan.FakeAlert) -> 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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