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Removal instructions for Cyboscan PC Optimizer

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What is Cyboscan PC Optimizer?

The Malwarebytes research team has determined that Cyboscan PC Optimizer is a "system optimizer". These so-called "system optimizers" use intentional false positives to convince users that their systems have problems. Then they try to sell you their software, claiming it will remove these problems.
More information can be found on our Malwarebytes Labs blog.

How do I know if I am infected with Cyboscan PC Optimizer?

This is how the main screen of the sytem optimizer looks:


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


and see these warnings during install:



and these screens during "operations":




You may see this entry in your list of installed programs:


How did Cyboscan PC Optimizer get on my computer?

These so-called system optimizers use different methods of getting installed. This particular one was downloaded from their site.

How do I remove Cyboscan PC Optimizer?

Our program Malwarebytes can detect and remove this potentially unwanted application.
  • Please download Malwarebytes to your desktop.
  • Double-click mb3-setup-consumer-{version}.exe and follow the prompts to install the program.
  • Then click Finish.
  • Once the program has fully updated, select Scan Now on the Dashboard. Or select the Threat Scan from the Scan menu.
  • If another update of the definitions is available, it will be implemented before the rest of the scanning procedure.
  • When the scan is complete, make sure that all Threats are selected, and click Remove Selected.
  • Restart your computer when prompted to do so.
Is there anything else I need to do to get rid of Cyboscan PC Optimizer?
  • No, Malwarebytes removes Cyboscan PC Optimizer completely.
  • The shortcut called PC Optimizer on the desktop can be deleted if it belonged to the rogue.
How would the full version of Malwarebytes help protect me?

We hope our application and this guide have helped you eradicate this system optimizer.

As you can see below the full version of Malwarebytes would have protected you against the Cyboscan PC Optimizer installer. It would have warned you before the application could install itself, giving you a chance to stop it before it became too late.


and we block access to their domain:


Technical details for experts

You may see these entries in FRST logs:
 (Cyboscan) C:\Program Files (x86)\Cyboscan\Cyboscan PC Optimizer\PC Optimizer.exe
 C:\Users\Public\Desktop\PC Optimizer.lnk
 C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Cyboscan PC Optimizer
 C:\Program Files (x86)\Cyboscan

Cyboscan PC Optimizer (HKLM-x32\...\{E55FEFEA-F506-47DC-A76E-9F7668D6E5C9}) (Version: 1.0.0 - Cyboscan)
Alterations made by the installer:
File system details [View: All details] (Selection)
    Adds the folder C:\Program Files (x86)\Cyboscan\Cyboscan PC Optimizer
       Adds the file license.rtf"="6/19/2016 4:13 AM, 37632 bytes, A
       Adds the file PC Optimizer.exe"="8/30/2016 12:50 AM, 6997032 bytes, A
       Adds the file PC Optimizer.ico"="1/13/2013 11:35 PM, 67646 bytes, A
       Adds the file PC Optimizer.InstallState"="3/21/2017 9:20 AM, 2012 bytes, A
       Adds the file Updater.exe"="7/3/2016 9:30 PM, 867368 bytes, A
       Adds the file VTRegScan.dll"="8/8/2016 2:24 AM, 76800 bytes, A
    Adds the folder C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Cyboscan PC Optimizer
       Adds the file PC Optimizer.lnk"="3/21/2017 9:20 AM, 2641 bytes, A
    In the existing folder C:\Users\Public\Desktop
       Adds the file PC Optimizer.lnk"="3/21/2017 9:20 AM, 2623 bytes, A

Registry details [View: All details] (Selection)
       "AdvertiseFlags"="REG_DWORD", 388
       "Assignment"="REG_DWORD", 1
       "AuthorizedLUAApp"="REG_DWORD", 0
       "Clients"="REG_MULTI_SZ, ": "
       "DeploymentFlags"="REG_DWORD", 3
       "InstanceType"="REG_DWORD", 0
       "Language"="REG_DWORD", 1033
       "PackageCode"="REG_SZ", "C06C709E6930A524F88E01D2F666C06A"
       "ProductIcon"="REG_SZ", "C:\Windows\Installer\{E55FEFEA-F506-47DC-A76E-9F7668D6E5C9}\_6FEFF9B68218417F98F549.exe"
       "ProductName"="REG_SZ", "Cyboscan PC Optimizer"
       "Version"="REG_DWORD", 16777216
       "LastScan"="REG_SZ", "ALTWXVhYGoxLJgNg5Q6Ff57gBHQOECeNcoW7+g9pbkbPouq9dwyeE2"
       "LCV"="REG_SZ", "dudFpXj7i+z9Ndtz5/Oond5mtSPpC8dbLi/ALqEL+PGGb2KclARFwuWFSVsa3+lHk9QRaDRzEEp1MWmvBxbIY6BQAjP8eyl5oYQeCdW6qI8fzhAQt73YQRSiEcvSz6VQ=="
       "AuthorizedCDFPrefix"="REG_SZ", ""
       "Comments"="REG_SZ", ""
       "Contact"="REG_SZ", "Cyboscan"
       "DisplayName"="REG_SZ", "Cyboscan PC Optimizer"
       "DisplayVersion"="REG_SZ", "1.0.0"
       "EstimatedSize"="REG_DWORD", 7857
       "HelpLink"="REG_EXPAND_SZ, "https://cyboscan.com/product-support.html"
       "HelpTelephone"="REG_SZ", "1-800-874-5207"
       "InstallDate"="REG_SZ", "20170321"
       "InstallLocation"="REG_SZ", ""
       "InstallSource"="REG_SZ", "C:\Users\{username}1\AppData\Local\Temp\"
       "Language"="REG_DWORD", 1033
       "ModifyPath"="REG_EXPAND_SZ, "MsiExec.exe /I{E55FEFEA-F506-47DC-A76E-9F7668D6E5C9}"
       "Publisher"="REG_SZ", "Cyboscan"
       "Readme"="REG_SZ", ""
       "Size"="REG_SZ", ""
       "UninstallString"="REG_EXPAND_SZ, "MsiExec.exe /I{E55FEFEA-F506-47DC-A76E-9F7668D6E5C9}"
       "URLInfoAbout"="REG_SZ", "https://cyboscan.com"
       "URLUpdateInfo"="REG_SZ", ""
       "Version"="REG_DWORD", 16777216
       "VersionMajor"="REG_DWORD", 1
       "VersionMinor"="REG_DWORD", 0
       "WindowsInstaller"="REG_DWORD", 1
Malwarebytes log:

-Log Details-
Scan Date: 3/22/17
Scan Time: 9:27 AM
Logfile: mbamCyboscan.txt
Administrator: Yes

-Software Information-
Components Version: 1.0.43
Update Package Version: 1.0.1566
License: Premium

-System Information-
OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS
User: {computername}\{username}

-Scan Summary-
Scan Type: Threat Scan
Result: Completed
Objects Scanned: 366197
Time Elapsed: 6 min, 13 sec

-Scan Options-
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Enabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled

-Scan Details-
Process: 1
PUP.Optional.Cyboscan, C:\Program Files (x86)\Cyboscan\Cyboscan PC Optimizer\PC Optimizer.exe, Quarantined, [10474], [382426],1.0.1566

Module: 1
PUP.Optional.Cyboscan, C:\Program Files (x86)\Cyboscan\Cyboscan PC Optimizer\PC Optimizer.exe, Quarantined, [10474], [382426],1.0.1566

Registry Key: 2
PUP.Optional.Cyboscan, HKLM\SOFTWARE\CYBOSCAN, Delete-on-Reboot, [10474], [382427],1.0.1566
PUP.Optional.Cyboscan, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\{E55FEFEA-F506-47DC-A76E-9F7668D6E5C9}, Delete-on-Reboot, [10474], [382428],1.0.1566

Registry Value: 1
PUP.Optional.Cyboscan, HKLM\SOFTWARE\CYBOSCAN|LASTSCAN, Delete-on-Reboot, [10474], [382427],1.0.1566

Data Stream: 0
(No malicious items detected)

Folder: 4
PUP.Optional.Cyboscan, C:\WINDOWS\INSTALLER\{E55FEFEA-F506-47DC-A76E-9F7668D6E5C9}, Delete-on-Reboot, [10474], [382425],1.0.1566
PUP.Optional.Cyboscan, C:\Program Files (x86)\Cyboscan\Cyboscan PC Optimizer, Delete-on-Reboot, [10474], [382426],1.0.1566
PUP.Optional.Cyboscan, C:\PROGRAM FILES (X86)\CYBOSCAN, Delete-on-Reboot, [10474], [382426],1.0.1566
PUP.Optional.Cyboscan, C:\PROGRAMDATA\MICROSOFT\WINDOWS\START MENU\PROGRAMS\CYBOSCAN PC OPTIMIZER, Delete-on-Reboot, [10474], [382424],1.0.1566

File: 11
PUP.Optional.Cyboscan, C:\USERS\{username}\DESKTOP\CYBOSCAN SETUP.EXE, Delete-on-Reboot, [10474], [382423],1.0.1566
PUP.Optional.Cyboscan, C:\Windows\Installer\{E55FEFEA-F506-47DC-A76E-9F7668D6E5C9}\_6FEFF9B68218417F98F549.exe, Delete-on-Reboot, [10474], [382425],1.0.1566
PUP.Optional.Cyboscan, C:\Windows\Installer\{E55FEFEA-F506-47DC-A76E-9F7668D6E5C9}\_8CCE24101D42B6DCB5D32C.exe, Delete-on-Reboot, [10474], [382425],1.0.1566
PUP.Optional.Cyboscan, C:\Windows\Installer\{E55FEFEA-F506-47DC-A76E-9F7668D6E5C9}\_D6B2CD523FE79472C109AD.exe, Delete-on-Reboot, [10474], [382425],1.0.1566
PUP.Optional.Cyboscan, C:\PROGRAM FILES (X86)\CYBOSCAN\CYBOSCAN PC OPTIMIZER\LICENSE.RTF, Delete-on-Reboot, [10474], [382426],1.0.1566
PUP.Optional.Cyboscan, C:\Program Files (x86)\Cyboscan\Cyboscan PC Optimizer\PC Optimizer.exe, Delete-on-Reboot, [10474], [382426],1.0.1566
PUP.Optional.Cyboscan, C:\Program Files (x86)\Cyboscan\Cyboscan PC Optimizer\PC Optimizer.ico, Delete-on-Reboot, [10474], [382426],1.0.1566
PUP.Optional.Cyboscan, C:\Program Files (x86)\Cyboscan\Cyboscan PC Optimizer\PC Optimizer.InstallState, Delete-on-Reboot, [10474], [382426],1.0.1566
PUP.Optional.Cyboscan, C:\Program Files (x86)\Cyboscan\Cyboscan PC Optimizer\Updater.exe, Delete-on-Reboot, [10474], [382426],1.0.1566
PUP.Optional.Cyboscan, C:\Program Files (x86)\Cyboscan\Cyboscan PC Optimizer\VTRegScan.dll, Delete-on-Reboot, [10474], [382426],1.0.1566
PUP.Optional.Cyboscan, C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Cyboscan PC Optimizer\PC Optimizer.lnk, Delete-on-Reboot, [10474], [382424],1.0.1566

Physical Sector: 0
(No malicious items detected)

As mentioned before the full version of Malwarebytes 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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