I am posting this question to ask for your ideas regarding the following issue.
A few days ago my computer was infected with a rootkit (conficker, according to my provider). As far as I have been able to verify, I have managed to delete it using GMER. Afterwards, I have installed "PC-beveiliging totaal" anti-virus software by F-secure. Since the installation of the F-secure software, my computer occasionally gets very very slow, especially at start up. I have noticed that fssm32.exe is consuming up to 99% of CPU.
I have scanned with HijackThis, which gives me the following log:
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Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 12:39:39, on 29-12-2010
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.17093)
Boot mode: Normal
Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\igfxtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\Program Files\Analog Devices\SoundMAX\SMTray.exe
C:\Program Files\Analog Devices\SoundMAX\DrvLsnr.exe
C:\Program Files\Java\jre6\bin\jusched.exe
C:\Program Files\SMC\SMC2862W-G EZ Connect g 2.4Ghz 802.11g Wireless USB 2.0 Adapter\PRISMSVR.EXE
C:\WINDOWS\vsnpstd.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\Pc-beveiliging totaal\Common\FSM32.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Citrix\Secure Access Client\nsload.exe
C:\Program Files\SMC\SMC2862W-G EZ Connect g 2.4Ghz 802.11g Wireless USB 2.0 Adapter\SMCWGUTI.exe
C:\Program Files\Windows Desktop Search\WindowsSearch.exe
C:\Program Files\Yahoo! Widgets\YahooWidgets.exe
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\Pc-beveiliging totaal\Anti-Virus\fsgk32st.exe
C:\Program Files\Pc-beveiliging totaal\Common\FSMA32.EXE
C:\Program Files\Pc-beveiliging totaal\Anti-Virus\FSGK32.EXE
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\Pc-beveiliging totaal\Common\FSHDLL32.EXE
C:\Program Files\Common Files\Microsoft Shared\VS7Debug\mdm.exe
C:\Program Files\Citrix\Secure Access Client\nsverctl.exe
C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\SearchIndexer.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\Program Files\Pc-beveiliging totaal\FWES\Program\fsdfwd.exe
C:\Program Files\Pc-beveiliging totaal\Anti-Virus\fssm32.exe
C:\Program Files\Pc-beveiliging totaal\Anti-Virus\fsav32.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\WINDOWS\system32\msiexec.exe
C:\WINDOWS\system32\SearchProtocolHost.exe
C:\Program Files\Trend Micro\HiJackThis\HiJackThis.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft....k/?LinkId=54896
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.volkskrant.nl/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft....k/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft....k/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft....k/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft....k/?LinkId=69157
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = http=10.1.72.10:8080;https=10.1.72.10:8080
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = www.vipdienst.com;*.vip.dmz;*.mcom.oc;<local>
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Koppelingen
O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
O2 - BHO: SkypeIEPluginBHO - {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O2 - BHO: LitmusBHO - {C6867EB7-8350-4856-877F-93CF8AE3DC9C} - C:\Program Files\Pc-beveiliging totaal\NRS\iescript\baselitmus.dll
O2 - BHO: Java Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll
O2 - BHO: JQSIEStartDetectorImpl - {E7E6F031-17CE-4C07-BC86-EABFE594F69C} - C:\Program Files\Java\jre6\lib\deploy\jqs\ie\jqs_plugin.dll
O3 - Toolbar: Browsing Protection Toolbar - {265EEE8E-3228-44D3-AEA5-F7FDF5860049} - C:\Program Files\Pc-beveiliging totaal\NRS\iescript\baselitmus.dll
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [Smapp] C:\Program Files\Analog Devices\SoundMAX\SMTray.exe
O4 - HKLM\..\Run: [DrvLsnr] C:\Program Files\Analog Devices\SoundMAX\DrvLsnr.exe
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [PRISMSVR.EXE] "C:\Program Files\SMC\SMC2862W-G EZ Connect g 2.4Ghz 802.11g Wireless USB 2.0 Adapter\PRISMSVR.EXE" /APPLY
O4 - HKLM\..\Run: [snpstd] C:\WINDOWS\vsnpstd.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [F-Secure Manager] "C:\Program Files\Pc-beveiliging totaal\Common\FSM32.EXE" /splash
O4 - HKLM\..\Run: [F-Secure TNB] "C:\Program Files\Pc-beveiliging totaal\FSGUI\TNBUtil.exe" /CHECKALL /WAITFORSW
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Lokale service')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Netwerkservice')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - Startup: Yahoo! Widgets.lnk = C:\Program Files\Yahoo! Widgets\YahooWidgets.exe
O4 - Global Startup: Citrix Access Gateway.lnk = C:\Program Files\Citrix\Secure Access Client\nsload.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: SMC2862W-G EZ Connect g 802.11g Wireless USB Utility.lnk = C:\Program Files\SMC\SMC2862W-G EZ Connect g 2.4Ghz 802.11g Wireless USB 2.0 Adapter\SMCWGUTI.exe
O4 - Global Startup: Windows Search.lnk = C:\Program Files\Windows Desktop Search\WindowsSearch.exe
O9 - Extra button: Skype Plug-In - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O9 - Extra 'Tools' menuitem: Skype Plug-In - {898EA8C8-E7FF-479B-8935-AEC46303B9E5} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (Installation Support) - C:\Program Files\Yahoo!\Common\Yinsthelper.dll
O16 - DPF: {3D3B42C2-11BF-4732-A304-A01384B70D68} (UploadListView Class) - http://picasaweb.goo...5/uploader2.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.micros...b?1249384530984
O16 - DPF: {DC6FEBC5-0A2D-458A-A01B-5DB15EEC4305} (IlosoftImageUploadCtl Class) - http://webc.appartem...ImageUpload.dll
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - http://platformdl.ad...Plus/1.6/gp.cab
O18 - Protocol: skype-ie-addon-data - {91774881-D725-4E58-B298-07617B9B86A8} - C:\Program Files\Skype\Toolbars\Internet Explorer\skypeieplugin.dll
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O22 - SharedTaskScheduler: Preloader van browseui - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Cache-daemon voor onderdeelcategorieën - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dll
O23 - Service: Mobiel Apple apparaat (Apple Mobile Device) - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: FSGKHS (F-Secure Gatekeeper Handler Starter) - Unknown owner - C:\Program Files\Pc-beveiliging totaal\Anti-Virus\fsgk32st.exe
O23 - Service: F-Secure Anti-Virus Firewall Daemon (FSDFWD) - F-Secure Corporation - C:\Program Files\Pc-beveiliging totaal\FWES\Program\fsdfwd.exe
O23 - Service: FSMA - F-Secure Corporation - C:\Program Files\Pc-beveiliging totaal\Common\FSMA32.EXE
O23 - Service: F-Secure ORSP Client (FSORSPClient) - F-Secure Corporation - C:\Program Files\Pc-beveiliging totaal\ORSP Client\fsorsp.exe
O23 - Service: Google Updateservice (gupdate) (gupdate) - Google Inc. - C:\Program Files\Google\Update\GoogleUpdate.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: iPod-service (iPod Service) - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: Citrix Secure Access Client Service (nsverctl) - Citrix Systems, Inc - C:\Program Files\Citrix\Secure Access Client\nsverctl.exe
O23 - Service: SoundMAX Agent Service (SoundMAX Agent Service (default)) - Analog Devices, Inc. - C:\Program Files\Analog Devices\SoundMAX\SMAgent.exe
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End of file - 9804 bytes
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My questions are:
What can I do to prevent fssm32.exe taking up so much CPU ?
Are there any traces of a rootkit left on my computer ?
Thanks a lot for any ideas you might have!

Cheers, Roger