Logfile of HijackThis v1.99.1
Scan saved at 12:28:57, on 23.02.2007
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\Programme\AVPersonal\AVWUPSRV.EXE
C:\PROGRA~1\F-SECU~1\backweb\4476822\Program\SERVIC~1.EXE
C:\WINNT\System32\cisvc.exe
C:\WINNT\System32\CTsvcCDA.EXE
C:\Programme\Gemeinsame Dateien\EPSON\EBAPI\SAgent2.exe
C:\WINNT\System32\svchost.exe
C:\Programme\F-Secure Internet Security\Anti-Virus\fsgk32st.exe
C:\Programme\F-Secure Internet Security\Anti-Virus\FSGK32.EXE
C:\Programme\F-Secure Internet Security\backweb\4476822\program\fsbwsys.exe
C:\Programme\F-Secure Internet Security\Common\FSMA32.EXE
C:\Programme\F-Secure Internet Security\Common\FSMB32.EXE
C:\Programme\Gemeinsame Dateien\MicroWorld\Agent\MWASER.EXE
C:\Programme\Gemeinsame Dateien\MicroWorld\Agent\MWAgent.exe
C:\WINNT\system32\regsvc.exe
C:\Programme\F-Secure Internet Security\Common\FCH32.EXE
C:\WINNT\system32\MSTask.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\System32\MsPMSPSv.exe
C:\WINNT\system32\svchost.exe
C:\Programme\F-Secure Internet Security\Common\FAMEH32.EXE
C:\Programme\F-Secure Internet Security\Anti-Virus\fsqh.exe
C:\Programme\F-Secure Internet Security\Anti-Virus\fsrw.exe
C:\WINNT\Explorer.EXE
C:\Programme\F-Secure Internet Security\FWES\Program\fsdfwd.exe
C:\Programme\F-Secure Internet Security\Anti-Virus\fssm32.exe
C:\WINNT\system32\HpMmKbd.exe
C:\Programme\F-Secure Internet Security\Common\FSM32.EXE
C:\Programme\F-Secure Internet Security\FSGUI\ispnews.exe
C:\WINNT\system32\internat.exe
C:\Programme\Creative\SBAudigy\Taskbar\CTLTray.exe
C:\WINNT\System32\spool\DRIVERS\W32X86\3\E_S10IC2.EXE
C:\Programme\OnlineControl\ocontrol.exe
C:\Programme\F-Secure Internet Security\backweb\4476822\Program\fspex.exe
C:\WINNT\system32\wuauclt.exe
C:\Programme\F-Secure Internet Security\Anti-Virus\fsav32.exe
C:\PROGRA~1\F-SECU~1\ANTI-S~1\fsaw.exe
C:\Programme\F-Secure Internet Security\FSGUI\fsguidll.exe
C:\Programme\Internet Explorer\iexplore.exe
C:\WINNT\System32\cidaemon.exe
C:\Programme\Internet Explorer\iexplore.exe
C:\Dokumente und Einstellungen\Administrator\Lokale Einstellungen\Temporary Internet Files\Content.IE5\Q36R6LI3\pruefung[1].com

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.de/
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
R3 - URLSearchHook: Yahoo! Toolbar mit Pop-Up-Blocker - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programme\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Programme\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Programme\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\System32\msdxm.ocx
O3 - Toolbar: (no name) - {84938242-5C5B-4A55-B6B9-A1507543B418} - (no file)
O3 - Toolbar: Yahoo! Toolbar mit Pop-Up-Blocker - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Programme\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [HpMmKbd] HpMmKbd.exe
O4 - HKLM\..\Run: [F-Secure Manager] "C:\Programme\F-Secure Internet Security\Common\FSM32.EXE" /splash
O4 - HKLM\..\Run: [F-Secure TNB] "C:\Programme\F-Secure Internet Security\TNB\TNBUtil.exe" /CHECKALL /WAITFORSW
O4 - HKLM\..\Run: [F-Secure Startup Wizard] "C:\Programme\F-Secure Internet Security\FSGUI\FSSW.EXE" /reboot
O4 - HKLM\..\Run: [News Service] "C:\Programme\F-Secure Internet Security\FSGUI\ispnews.exe"
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKCU\..\Run: [internat.exe] internat.exe
O4 - HKCU\..\Run: [TaskTray] C:\Programme\Creative\SBAudigy\Taskbar\CTLTray.exe
O4 - HKCU\..\Run: [EPSON Stylus C20 Series] C:\WINNT\System32\spool\DRIVERS\W32X86\3\E_S10IC2.EXE /A "C:\WINNT\system32\E_S17.tmp"
O4 - Global Startup: OnlineControl.lnk = C:\Programme\OnlineControl\ocontrol.exe
O4 - Global Startup: F-Secure 2006.lnk = C:\Programme\F-Secure Internet Security\backweb\4476822\Program\fspex.exe
O8 - Extra context menu item: &Google Search - res://C:\Programme\Google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: Backward &Links - res://C:\Programme\Google\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: Cac&hed Snapshot of Page - res://C:\Programme\Google\GoogleToolbar1.dll/cmcache.html
O8 - Extra context menu item: Dieses Popup &blockieren - C:\Programme\F-Secure Internet Security\Anti-Spyware\blockpopups.htm
O8 - Extra context menu item: Si&milar Pages - res://C:\Programme\Google\GoogleToolbar1.dll/cmsimilar.html
O9 - Extra button: IE-Schutzschild - {300DB664-75B5-47c0-8B45-A44ACCF73C00} - C:\Programme\F-Secure Internet Security\Anti-Spyware\ieshield.dll
O9 - Extra 'Tools' menuitem: IE-Schutzschild... - {300DB664-75B5-47c0-8B45-A44ACCF73C00} - C:\Programme\F-Secure Internet Security\Anti-Spyware\ieshield.dll
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O12 - Plugin for .mov: C:\Programme\Internet Explorer\PLUGINS\npqtplugin.dll
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - http://www.kaspersky.com/kos/german/partner/de/kavwebscan_unicode.cab
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Programme\Yahoo!\Common\yinsthelper.dll
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://download.bitdefender.com/resources/scan8/oscan8.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1152103438171
O16 - DPF: {9D190AE6-C81E-4039-8061-978EBAD10073} (F-Secure Online Scanner 3.0) - http://support.f-secure.com/ols/fscax.cab
O23 - Service: AntiVir Update (AVWUpSrv) - H+BEDV Datentechnik GmbH, Germany - C:\Programme\AVPersonal\AVWUPSRV.EXE
O23 - Service: F-Secure 2006 (BackWeb Plug-in - 4476822) - F-Secure Internet Security 2005 - C:\PROGRA~1\F-SECU~1\backweb\4476822\Program\SERVIC~1.EXE
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINNT\System32\CTsvcCDA.EXE
O23 - Service: Verwaltungsdienst für die Verwaltung logischer Datenträger (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: EPSON Printer Status Agent2 (EPSONStatusAgent2) - SEIKO EPSON CORPORATION - C:\Programme\Gemeinsame Dateien\EPSON\EBAPI\SAgent2.exe
O23 - Service: FSGKHS (F-Secure Gatekeeper Handler Starter) - F-Secure Corporation - C:\Programme\F-Secure Internet Security\Anti-Virus\fsgk32st.exe
O23 - Service: fsbwsys - F-Secure Corp. - C:\Programme\F-Secure Internet Security\backweb\4476822\program\fsbwsys.exe
O23 - Service: F-Secure Anti-Virus Firewall Daemon (FSDFWD) - F-Secure Corporation - C:\Programme\F-Secure Internet Security\FWES\Program\fsdfwd.exe
O23 - Service: FSMA - F-Secure Corporation - C:\Programme\F-Secure Internet Security\Common\FSMA32.EXE
O23 - Service: MWAgent - MicroWorld Technologies Inc. - C:\Programme\Gemeinsame Dateien\MicroWorld\Agent\MWASER.EXE

Hi erstmal. Sieht so aus als hättest du diesen hier erwischt!

Trojan-Downloader.JS.Small.i

Infiziert:
C:\Dokumente und Einstellungen\Administrator\Lokale Einstellungen\Temporary Internet Files\Content.IE5\Q36R6LI3\pruefung[1].com

Prüfe mal ob dies in dem Verzeichnis abgelegt ist!