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SemTool Removal: Remove SemTool Forever

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What is SemTool? Technical details of SemTool problem and SemTool removal tool

Methods for manual SemTool removal

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Threat's profile

Threat indicator: HIGH
 Name of the threat: SemTool
Command or file name: sems.exe
Threat type: Spyware
Affected OS: Win32 (Windows 9x, Windows XP, Windows Vista)

SemTool intrusion method

SemTool copies its file(s) to your hard disk. Its typical file name is sems.exe. Then it creates new startup key with name SemTool and value sems.exe. You can also find it in your processes list with name sems.exe or SemTool.

If you have further questions about SemTool, please fill in the form above and we'll contact you shortly.

» Download program to remove SemTool (SemTool Removal Tool)

Recommended Solution

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How to fix SemTool

This problem can be solved manually by deleting all registry keys and files connected with SemTool, removing it from starup list and unregistering all corresponding DLLs. Additionally missing DLL's should be restored from distribution in case they are corrupted by SemTool.

To get rid of SemTool, you should:

1. Kill the following processes and delete the appropriate files:

• semtool2setup[1].exe
• semtools[1].cab
• smt.dll
• smtb.dll
• smtframe.dll
• smtup.exe
• smtup[1].exe
• uninstall_all.sys
• ver.dat

Warning: you should delete only those files which checksums are listed as malicious. There may be valid files with the same names in your system. We recommend you to use SemTool Removal Tool for safe problem solution.

2. Delete the following malicious folders:

• C:\Program Files\semtool\

3. Delete the following malicious registry entries and\or values:

• Key: Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{CB173583-1405-4336-8004-80C71718F14F}\iexplore
  Value: Type

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: Inno Setup: Setup Version

• Key: SOFTWARE\SEMTool
  Value: key

• Key: CLSID\{98081204-63E0-40D1-B483-E19DA6D3349E}

• Key: CLSID\{98081204-63E0-40D1-B483-E19DA6D3349E}\InprocServer32

• Key: CLSID\{98081204-63E0-40D1-B483-E19DA6D3349E}\ProgID

• Key: CLSID\{98081204-63E0-40D1-B483-E19DA6D3349E}\Implemented Categories\{00021494-0000-0000-C000-000000000046}

• Key: SOFTWARE\Classes\CLSID\{98081204-63E0-40D1-B483-E19DA6D3349E}

• Key: SOFTWARE\Classes\CLSID\{98081204-63E0-40D1-B483-E19DA6D3349E}\InprocServer32
  Value: ThreadingModel

• Key: SOFTWARE\Classes\CLSID\{98081204-63E0-40D1-B483-E19DA6D3349E}\ProgID

• Key: smtb.SMTB

• Key: smtb.SMTB\Clsid

• Key: SOFTWARE\Classes\smtb.SMTB

• Key: SOFTWARE\Classes\smtb.SMTB\Clsid

• Key: CLSID\{FEFB1E7D-794B-4A5B-8118-894845B851F6}

• Key: CLSID\{FEFB1E7D-794B-4A5B-8118-894845B851F6}\InprocServer32

• Key: CLSID\{FEFB1E7D-794B-4A5B-8118-894845B851F6}\ProgID

• Key: SOFTWARE\Classes\CLSID\{FEFB1E7D-794B-4A5B-8118-894845B851F6}

• Key: SOFTWARE\Classes\CLSID\{FEFB1E7D-794B-4A5B-8118-894845B851F6}\InprocServer32
  Value: ThreadingModel

• Key: SOFTWARE\Classes\CLSID\{FEFB1E7D-794B-4A5B-8118-894845B851F6}\ProgID

• Key: smt.SMT

• Key: smt.SMT\Clsid

• Key: SOFTWARE\Classes\smt.SMT

• Key: SOFTWARE\Classes\smt.SMT\Clsid

• Key: Software\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{FEFB1E7D-794B-4A5B-8118-894845B851F6}

• Key: CLSID\{69A53DA3-FF9E-48D8-9954-97725BDF3075}

• Key: CLSID\{69A53DA3-FF9E-48D8-9954-97725BDF3075}\InprocServer32

• Key: CLSID\{69A53DA3-FF9E-48D8-9954-97725BDF3075}\Implemented Categories\{00021493-0000-0000-C000-000000000046}

• Key: SOFTWARE\Classes\CLSID\{69A53DA3-FF9E-48D8-9954-97725BDF3075}

• Key: SOFTWARE\Classes\CLSID\{69A53DA3-FF9E-48D8-9954-97725BDF3075}\InprocServer32
  Value: ThreadingModel

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool
  Value: DisplayName

• Key: Software\installer_fine005
  Value: instinfo

• Key: Installer_fine005
  Value: FromDate

• Key: CLSID\{CB173583-1405-4336-8004-80C71718F14F}

• Key: Software\Classes\CLSID\{CB173583-1405-4336-8004-80C71718F14F}

• Key: Software\Classes\CLSID\{CB173583-1405-4336-8004-80C71718F14F}\Control

• Key: CLSID\{CB173583-1405-4336-8004-80C71718F14F}\Control

• Key: CLSID\{CB173583-1405-4336-8004-80C71718F14F}\InprocServer32
  Value: ThreadingModel

• Key: Software\Classes\CLSID\{CB173583-1405-4336-8004-80C71718F14F}\InprocServer32
  Value: ThreadingModel

• Key: CLSID\{CB173583-1405-4336-8004-80C71718F14F}\MiscStatus\1

• Key: Software\Classes\CLSID\{CB173583-1405-4336-8004-80C71718F14F}\MiscStatus\1

• Key: CLSID\{CB173583-1405-4336-8004-80C71718F14F}\MiscStatus

• Key: Software\Classes\CLSID\{CB173583-1405-4336-8004-80C71718F14F}\MiscStatus

• Key: CLSID\{CB173583-1405-4336-8004-80C71718F14F}\ProgID

• Key: Software\Classes\CLSID\{CB173583-1405-4336-8004-80C71718F14F}\ProgID

• Key: CLSID\{CB173583-1405-4336-8004-80C71718F14F}\ToolboxBitmap32

• Key: Software\Classes\CLSID\{CB173583-1405-4336-8004-80C71718F14F}\ToolboxBitmap32

• Key: CLSID\{CB173583-1405-4336-8004-80C71718F14F}\TypeLib

• Key: Software\Classes\CLSID\{CB173583-1405-4336-8004-80C71718F14F}\TypeLib

• Key: CLSID\{CB173583-1405-4336-8004-80C71718F14F}\Verb\0

• Key: Software\Classes\CLSID\{CB173583-1405-4336-8004-80C71718F14F}\Verb\0

• Key: CLSID\{CB173583-1405-4336-8004-80C71718F14F}\Verb

• Key: Software\Classes\CLSID\{CB173583-1405-4336-8004-80C71718F14F}\Verb

• Key: CLSID\{CB173583-1405-4336-8004-80C71718F14F}\Version

• Key: Software\Classes\CLSID\{CB173583-1405-4336-8004-80C71718F14F}\Version

• Key: semtools.tsemtools

• Key: Software\Classes\semtools.tsemtools

• Key: semtools.tsemtools\clsid

• Key: Software\Classes\semtools.tsemtools\clsid

• Key: Software\Microsoft\Code Store Database\Distribution Units\{CB173583-1405-4336-8004-80C71718F14F}
  Value: Installer

• Key: Software\Microsoft\Code Store Database\Distribution Units\{CB173583-1405-4336-8004-80C71718F14F}\Contains\Files
  Value: C:\Windows\Downloaded Program Files\semtools.ocx

• Key: Software\Microsoft\Code Store Database\Distribution Units\{CB173583-1405-4336-8004-80C71718F14F}\Contains

• Key: Software\Microsoft\Code Store Database\Distribution Units\{CB173583-1405-4336-8004-80C71718F14F}\DownloadInformation
  Value: CodeBase

• Key: Software\Microsoft\Code Store Database\Distribution Units\{CB173583-1405-4336-8004-80C71718F14F}\InstalledVersion
  Value: LastModified

• Key: Software\Microsoft\Windows\CurrentVersion\ModuleUsage\C:\Windows/Downloaded Program Files/semtools
  Value: .Owner

• Key: Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{CB173583-1405-4336-8004-80C71718F14F}\iexplore
  Value: Flags

• Key: Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{CB173583-1405-4336-8004-80C71718F14F}\iexplore
  Value: Count

• Key: Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{CB173583-1405-4336-8004-80C71718F14F}\iexplore
  Value: Time

• Key: Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{CB173583-1405-4336-8004-80C71718F14F}\iexplore
  Value: Blocked

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: Inno Setup: App Path

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: InstallLocation

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: Inno Setup: Icon Group

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: Inno Setup: User

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: DisplayName

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: UninstallString

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: QuietUninstallString

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: DisplayVersion

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: Publisher

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: URLInfoAbout

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: HelpLink

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: URLUpdateInfo

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: NoModify

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool_is1
  Value: NoRepair

• Key: SOFTWARE\SEMTool
  Value: chk

• Key: SOFTWARE\SEMTool
  Value: ver

• Key: SOFTWARE\SEMTool
  Value: com

• Key: SOFTWARE\SEMTool
  Value: chk

• Key: SOFTWARE\Microsoft\Internet Explorer\Toolbar
  Value: {98081204-63E0-40D1-B483-E19DA6D3349E}

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool
  Value: DisplayVersion

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool
  Value: UninstallString

• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SEMTool
  Value: URLInfoAbout

• Key: Software\Microsoft\Internet Explorer\Security\AntiPhishing\B3BB5BBA-E7D5-40AB-A041-A5B1C0B26C8F
  Value: UserFile

• Key: Software\Microsoft\Code Store Database\Distribution Units\{CB173583-1405-4336-8004-80C71718F14F}
  Value: SystemComponent

• Key: Software\Microsoft\Code Store Database\Distribution Units\{CB173583-1405-4336-8004-80C71718F14F}\DownloadInformation
  Value: INF

• Key: Software\Microsoft\Windows\CurrentVersion\ModuleUsage\C:\Windows/Downloaded Program Files/semtools
  Value: {CB173583-1405-4336-8004-80C71718F14F}

• Key: SOFTWARE\Classes\CLSID\{98081204-63E0-40D1-B483-E19DA6D3349E}

• Key: SOFTWARE\Classes\CLSID\{FEFB1E7D-794B-4A5B-8118-894845B851F6}

• Key: SOFTWARE\Classes\CLSID\{69A53DA3-FF9E-48D8-9954-97725BDF3075}

Warning: If value is listed for some registry entries, you should only clear these values and leave keys with such values untouched. We recommend you to use SemTool Removal Tool for safe problem solution.

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Learn more about SemTool and sems.exe »

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Solution: 2884
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