Mach einen OTL-Fix, beende alle evtl. geöffneten Programme, auch Virenscanner deaktivieren (!), starte OTL und kopiere folgenden Text in die "Custom Scan/Fixes" Box (unten in OTL): (das ":OTL" muss mitkopiert werden!!!)

:OTL
IE - HKLM\SOFTWARE\Microsoft\Internet Explorer\Main,Default_Page_URL = http://acer.msn.com
IE - HKLM\SOFTWARE\Microsoft\Internet Explorer\Main,Local Page = C:\Windows\SysWOW64\blank.htm
IE - HKLM\SOFTWARE\Microsoft\Internet Explorer\Main,Start Page = http://acer.msn.com
IE - HKLM\..\SearchScopes,DefaultScope = {0633EE93-D776-472f-A0FF-E1416B8B2E3A}
IE - HKLM\..\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}: "URL" = http://www.bing.com/search?q={searchTerms}&form=AARTDF&pc=MAAR&src=IE-SearchBox
IE - HKLM\..\SearchScopes\{BFFED5CA-8BDF-47CC-AED0-23F4E6D77732}: "URL" = http://search.iminent.com/?appId=&ref=toolbox&q={searchTerms}
IE - HKU\S-1-5-21-3247393173-1513715297-1201314939-1001\..\SearchScopes\{BFFED5CA-8BDF-47CC-AED0-23F4E6D77732}: "URL" = http://search.iminent.com/?appId=&ref=toolbox&q={searchTerms}
IE - HKU\S-1-5-21-3247393173-1513715297-1201314939-1001\..\SearchScopes\Plasmoo: "URL" = http://plasmoo.com/index.htm?SearchMashine=true&q={searchTerms}
O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - No CLSID value found.
O2 - BHO: (Lexmark Symbolleiste) - {1017A80C-6F09-4548-A84D-EDD6AC9525F0} - C:\Program Files (x86)\Lexmark Toolbar\toolband.dll ()
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - No CLSID value found.
O2 - BHO: (IMinent WebBooster (BHO)) - {A09AB6EB-31B5-454C-97EC-9B294D92EE2A} - C:\Program Files (x86)\Iminent\IMBooster4Web\Iminent.WebBooster.dll (Iminent)
O2 - BHO: (Yontoo) - {FD72061E-9FDE-484D-A58A-0BAB4151CAD8} - C:\Program Files (x86)\Yontoo\YontooIEClient.dll (Yontoo LLC)
O3 - HKLM\..\Toolbar: (Lexmark Symbolleiste) - {1017A80C-6F09-4548-A84D-EDD6AC9525F0} - C:\Program Files (x86)\Lexmark Toolbar\toolband.dll ()
O3 - HKLM\..\Toolbar: (toolplugin) - {DFEFCDEE-CF1A-4FC8-89AF-189327213627} - C:\Users\Sarah\AppData\Roaming\toolplugin\toolbar.dll ()
O3 - HKLM\..\Toolbar: (no name) - Locked - No CLSID value found.
O3 - HKU\S-1-5-21-3247393173-1513715297-1201314939-1001\..\Toolbar\WebBrowser: (Lexmark Symbolleiste) - {1017A80C-6F09-4548-A84D-EDD6AC9525F0} - C:\Program Files (x86)\Lexmark Toolbar\toolband.dll ()
O4 - HKLM..\Run: [IMBooster] C:\Program Files (x86)\Iminent\IMBooster\imbooster.exe (Iminent)
O4 - HKLM..\Run: [Iminent.Notifier] C:\Program Files (x86)\Iminent\SearchTheWeb\Iminent.Notifier.exe (Iminent)
O4 - HKU\S-1-5-21-3247393173-1513715297-1201314939-1001..\Run: [SkypePM] C:\Users\Sarah\AppData\Local\Skype\SkypePM.exe (Microsoft Corporation)
O4 - HKU\S-1-5-19..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe File not found
O4 - HKU\S-1-5-20..\RunOnce: [mctadmin] C:\Windows\System32\mctadmin.exe File not found
O4 - HKU\S-1-5-21-3247393173-1513715297-1201314939-1001..\RunOnce: [.IMinentUpdate] C:\Users\Sarah\AppData\Local\Temp\NotifierSetup.exe File not found
O4 - Startup: C:\Users\Sarah\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\setup_9.0.0.722_20.06.2011_10-58.lnk = C:\Users\Sarah\Desktop\Neuer Ordner (3)\Virus Removal Tool\setup_9.0.0.722_20.06.2011_10-58\startup.exe ()
@Alternate Data Stream - 142 bytes -> C:\ProgramData\Temp:D05E7A8B
@Alternate Data Stream - 134 bytes -> C:\ProgramData\Temp:1A60DE96
@Alternate Data Stream - 130 bytes -> C:\ProgramData\Temp:390B30B4
:Commands
[purity]
[emptytemp]
[emptyflash]
[resethosts]
         

Klick dann oben links auf den Button Fix!
Das Logfile müsste geöffnet werden, wenn Du nach dem Fixen auf ok klickst, poste das bitte. Evtl. wird der Rechner neu gestartet.

Die mit diesem Script gefixten Einträge, Dateien und Ordner werden zur Sicherheit nicht vollständig gelöscht, es wird eine Sicherheitskopie auf der Systempartition im Ordner "_OTL" erstellt.

Hinweis: Das obige Script ist nur für diesen einen User in dieser Situtation erstellt worden. Es ist auf keinen anderen Rechner portierbar und darf nicht anderweitig verwandt werden, da es das System nachhaltig schädigen kann!

Hier:

 All processes killed
========== OTL ==========
HKLM\SOFTWARE\Microsoft\Internet Explorer\Main\\Default_Page_URL| /E : value set successfully!
HKLM\SOFTWARE\Microsoft\Internet Explorer\Main\\Local Page| /E : value set successfully!
HKLM\SOFTWARE\Microsoft\Internet Explorer\Main\\Start Page| /E : value set successfully!
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\\DefaultScope| /E : value set successfully!
Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\ deleted successfully.
Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\ not found.
Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{BFFED5CA-8BDF-47CC-AED0-23F4E6D77732}\ deleted successfully.
Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{BFFED5CA-8BDF-47CC-AED0-23F4E6D77732}\ not found.
Registry key HKEY_USERS\S-1-5-21-3247393173-1513715297-1201314939-1001\Software\Microsoft\Internet Explorer\SearchScopes\{BFFED5CA-8BDF-47CC-AED0-23F4E6D77732}\ deleted successfully.
Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{BFFED5CA-8BDF-47CC-AED0-23F4E6D77732}\ not found.
Registry key HKEY_USERS\S-1-5-21-3247393173-1513715297-1201314939-1001\Software\Microsoft\Internet Explorer\SearchScopes\{searchTerms}\ not found.
Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{searchTerms}\ not found.
Registry key HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{02478D38-C3F9-4efb-9B51-7695ECA05670}\ deleted successfully.
Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{02478D38-C3F9-4efb-9B51-7695ECA05670}\ not found.
Registry key HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1017A80C-6F09-4548-A84D-EDD6AC9525F0}\ deleted successfully.
Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1017A80C-6F09-4548-A84D-EDD6AC9525F0}\ deleted successfully.
C:\Program Files (x86)\Lexmark Toolbar\toolband.dll moved successfully.
Registry key HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{5C255C8A-E604-49b4-9D64-90988571CECB}\ deleted successfully.
Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{5C255C8A-E604-49b4-9D64-90988571CECB}\ not found.
Registry key HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{A09AB6EB-31B5-454C-97EC-9B294D92EE2A}\ deleted successfully.
Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{A09AB6EB-31B5-454C-97EC-9B294D92EE2A}\ deleted successfully.
C:\Program Files (x86)\Iminent\IMBooster4Web\Iminent.WebBooster.dll moved successfully.
Registry key HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{FD72061E-9FDE-484D-A58A-0BAB4151CAD8}\ deleted successfully.
Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{FD72061E-9FDE-484D-A58A-0BAB4151CAD8}\ deleted successfully.
C:\Program Files (x86)\Yontoo\YontooIEClient.dll moved successfully.
Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Toolbar\\{1017A80C-6F09-4548-A84D-EDD6AC9525F0} deleted successfully.
Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1017A80C-6F09-4548-A84D-EDD6AC9525F0}\ not found.
File C:\Program Files (x86)\Lexmark Toolbar\toolband.dll not found.
Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Toolbar\\{DFEFCDEE-CF1A-4FC8-89AF-189327213627} deleted successfully.
Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{DFEFCDEE-CF1A-4FC8-89AF-189327213627}\ deleted successfully.
C:\Users\Sarah\AppData\Roaming\toolplugin\toolbar.dll moved successfully.
Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Toolbar\\Locked deleted successfully.
Registry value HKEY_USERS\S-1-5-21-3247393173-1513715297-1201314939-1001\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser\\{1017A80C-6F09-4548-A84D-EDD6AC9525F0} deleted successfully.
Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1017A80C-6F09-4548-A84D-EDD6AC9525F0}\ not found.
File C:\Program Files (x86)\Lexmark Toolbar\toolband.dll not found.
Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run\\IMBooster deleted successfully.
C:\Program Files (x86)\Iminent\IMBooster\imbooster.exe moved successfully.
Registry value HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run\\Iminent.Notifier deleted successfully.
C:\Program Files (x86)\Iminent\SearchTheWeb\Iminent.Notifier.exe moved successfully.
Registry value HKEY_USERS\S-1-5-21-3247393173-1513715297-1201314939-1001\Software\Microsoft\Windows\CurrentVersion\Run\\SkypePM deleted successfully.
C:\Users\Sarah\AppData\Local\Skype\SkypePM.exe moved successfully.
Registry value HKEY_USERS\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\RunOnce\\mctadmin deleted successfully.
Registry value HKEY_USERS\S-1-5-20\Software\Microsoft\Windows\CurrentVersion\RunOnce\\mctadmin deleted successfully.
Registry value HKEY_USERS\S-1-5-21-3247393173-1513715297-1201314939-1001\Software\Microsoft\Windows\CurrentVersion\RunOnce\\.IMinentUpdate deleted successfully.
C:\Users\Sarah\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\setup_9.0.0.722_20.06.2011_10-58.lnk moved successfully.
C:\Users\Sarah\Desktop\Neuer Ordner (3)\Virus Removal Tool\setup_9.0.0.722_20.06.2011_10-58\startup.exe moved successfully.
ADS C:\ProgramData\Temp:D05E7A8B deleted successfully.
ADS C:\ProgramData\Temp:1A60DE96 deleted successfully.
ADS C:\ProgramData\Temp:390B30B4 deleted successfully.
========== COMMANDS ==========
 
[EMPTYTEMP]
 
User: All Users
 
User: Default
->Temp folder emptied: 0 bytes
->Temporary Internet Files folder emptied: 0 bytes
->Flash cache emptied: 56468 bytes
 
User: Default User
->Temp folder emptied: 0 bytes
->Temporary Internet Files folder emptied: 0 bytes
->Flash cache emptied: 0 bytes
 
User: Public
 
User: Sarah
->Temp folder emptied: 1200333863 bytes
->Temporary Internet Files folder emptied: 1640266810 bytes
->Java cache emptied: 69815023 bytes
->Google Chrome cache emptied: 420448778 bytes
->Flash cache emptied: 65047 bytes
 
%systemdrive% .tmp files removed: 0 bytes
%systemroot% .tmp files removed: 0 bytes
%systemroot%\System32 .tmp files removed: 0 bytes
%systemroot%\System32 (64bit) .tmp files removed: 0 bytes
%systemroot%\System32\drivers .tmp files removed: 0 bytes
Windows Temp folder emptied: 189582186 bytes
%systemroot%\sysnative\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files folder emptied: 67832 bytes
RecycleBin emptied: 408363 bytes
 
Total Files Cleaned = 3.358,00 mb
 
 
[EMPTYFLASH]
 
User: All Users
 
User: Default
->Flash cache emptied: 0 bytes
 
User: Default User
->Flash cache emptied: 0 bytes
 
User: Public
 
User: Sarah
->Flash cache emptied: 0 bytes
 
Total Flash Files Cleaned = 0,00 mb
 
C:\Windows\System32\drivers\etc\Hosts moved successfully.
HOSTS file reset successfully
 
OTL by OldTimer - Version 3.2.39.2 log created on 04062012_213429
         

und wie geht es weiter?