各位高手好：
我家裡的電腦約一兩個星期前在右下角的命令列會跳出"Critical system error"訊息
內容大概就是說偵測到中毒，要下載防毒軟體，然後叫你按下去連結到可用的軟體，都是什麼virusburst的......
內容如下： System detected virus activities. They may cause critical system failure. Please, use antimalware software to clean and protect your system from parasite programs. Clink this button to get all available software.
我弟那時就下載了virusburst，不過沒啥用（因為要註冊才能掃掉偵測出來的錯誤），用norton 2006掃過是顯示virusburst, spywarequake, Trojan.zlob, Trojan. Emcodec。我後來把偵測到的檔案都砍了，另外我有用Adaware 6.0和Hijackthis掃過，現在用Norton 2006掃是掃不出毒。不過右下角的命令列還是會有一個問號和叉叉交替閃，偶爾就跳出""Critical system error"，可是又拿他沒輒。
想問問： 右下角那個"Critical system error"是真的代表我的電腦受到很嚴重的病毒侵害嗎？如果是的話，我的電腦是不是還有木馬沒掃到，以目前Norton沒掃到的情況下該如何去進一步掃毒，該下載卡巴斯基還是其他的程式嗎？如果不是的話，該如何消掉那訊息？？謝謝各位高手.....下面是我最新一次的Hijackthis logfile......

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:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
C:\Program Files\Common Files\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\QuickTime\qttask.exe
C:\Program Files\Common Files\Logitech\QCDriver3\LVCOMS.EXE
C:\Program Files\Logitech\ImageStudio\LogiTray.exe
C:\Program Files\Winamp\winampa.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Skype\Phone\Skype.exe
C:\Program Files\Kuro\KuroService.exe
C:\Program Files\Sony Corporation\Image Transfer\SonyTray.exe
D:\ABMTSR.EXE
C:\Program Files\Pixoria\Konfabulator\Konfabulator.exe
C:\Program Files\Logitech\ImageStudio\LowLight.exe
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Common Files\Symantec Shared\Security Console\NSCSRVCE.EXE
C:\WINDOWS\system32\conime.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Common Files\Symantec Shared\NMain.exe
C:\Program Files\Messenger\msmsgs.exe
C:\PROGRA~1\NORTON~1\navw32.exe
C:\Documents and Settings\XXX\桌面\HijackThis.exe

O2 - BHO: Yahoo! Companion BHO - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\ycomp5_6_2_0.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {7b4d79df-9ef0-429d-a0e9-d9b138c6a53b} - C:\Program Files\VideoCompressionCodec\isaddon.dll (file missing)
O2 - BHO: IeCatch2 Class - {A5366673-E8CA-11D3-9CD9-0090271D075B} - C:\PROGRA~1\FLASHGET\jccatch.dll
O2 - BHO: NAV Helper - {A8F38D8D-E480-4D52-B7A2-731BB6995FDD} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O2 - BHO: GetIE Helper - {BDEEE1B1-8B25-42BE-9925-1E0228C27126} - C:\WINDOWS\system32\GetIEBrowser.dll
O3 - Toolbar: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - C:\PROGRA~1\FLASHGET\fgiebar.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\ycomp5_6_2_0.dll
O3 - Toolbar: Norton AntiVirus - {C4069E3A-68F1-403E-B40E-20066696354B} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [PHIME2002ASync] C:\WINDOWS\System32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - HKLM\..\Run: [PHIME2002A] C:\WINDOWS\System32\IME\TINTLGNT\TINTSETP.EXE /IMEName
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\System32\NeroCheck.exe
O4 - HKLM\..\Run: [LVCOMS] C:\Program Files\Common Files\Logitech\QCDriver3\LVCOMS.EXE
O4 - HKLM\..\Run: [LogitechGalleryRepair] C:\Program Files\Logitech\ImageStudio\ISStart.exe
O4 - HKLM\..\Run: [LogitechImageStudioTray] C:\Program Files\Logitech\ImageStudio\LogiTray.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Real Alternative\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [BearShare] "C:\Program Files\BearShare\BearShare.exe" /pause
O4 - HKLM\..\Run: [WinampAgent] C:\Program Files\Winamp\winampa.exe
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [SpamBlocker] C:\Program Files\SpamBlockerUtility\Bin\4.8.0.0\SbOEAddOn.exe
O4 - HKLM\..\Run: [Spam Blocker for Outlook Express] C:\PROGRA~1\SPAMBL~1\Bin\480~1.0\SBInst.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Skype] "C:\Program Files\Skype\Phone\Skype.exe" /nosplash /minimized
O4 - HKCU\..\Run: [KuroService] "C:\Program Files\Kuro\KuroService.exe"
O8 - Extra context menu item: 使用 FlashGet 下載 - C:\Program Files\FlashGet\jc_link.htm
O8 - Extra context menu item: 全部使用 FlashGet 下載 - C:\Program Files\FlashGet\jc_all.htm
O8 - Extra context menu item: 匯出至 Microsoft Excel(&X) - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: 建立行動最愛 - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\inetrepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\inetrepl.dll
O9 - Extra 'Tools' menuitem: 建立行動最愛... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\inetrepl.dll
O9 - Extra button: Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\PROGRA~1\YAHOO!\COMMON\yhexbmestw.dll
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\PROGRA~1\YAHOO!\COMMON\yhexbmestw.dll
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\System32\Shdocvw.dll
O9 - Extra button: FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - C:\PROGRA~1\FLASHGET\flashget.exe
O9 - Extra 'Tools' menuitem: &FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - C:\PROGRA~1\FLASHGET\flashget.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: {14B87622-7E19-4EA8-93B3-97215F77A6BC} (MessengerStatsClient Class) - http://messenger.zone.msn.com/bi ... Client.cab30149.cab
O16 - DPF: {1A73C134-41FE-47CD-A65D-11FFB4D5EFF3} (Yahoo!奇摩相簿快速上傳工具 Class) - http://us.dl1.yimg.com/download. ... r/ydropper1_4tw.cab
O16 - DPF: {2917297F-F02B-4B9D-81DF-494B6333150B} (Minesweeper Flags Class) - http://messenger.zone.msn.com/binar...er.cab28578.cab
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Program Files\Yahoo!\Common\yinsthelper.dll
O16 - DPF: {4F1E5B1A-2A80-42CA-8532-2D05CB959537} (MSN Photo Upload Tool) - http://spaces.msn.com//PhotoUpload/MsnPUpld.cab
O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} (RdxIE Class) - http://software-dl.real.com/285f ... zip/RdxIE601_tw.cab
O16 - DPF: {62789780-B744-11D0-986B-00609731A21D} (Autodesk MapGuide ActiveX Control) - http://emap.tainan.gov.tw/Plugin/mgaxctrl.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/bi ... Client.cab28578.cab
O16 - DPF: {938527D1-CDB7-4147-998A-B20FCA5CC976} (Cdmcco Class) - http://cafeimg.hanmail.net/cab8/dmcc2.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/M...pDownloader.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://messenger.zone.msn.com/binar...ro.cab30149.cab
O16 - DPF: {BD393C14-72AD-4790-A095-76522973D6B8} (CBreakshotControl Class) - http://messenger.zone.msn.com/binar...ot.cab30149.cab
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: contrabandists - {dfa61db1-388e-4c87-8d56-540fa229bcb4} - C:\WINDOWS\system32\dpfwu.dll
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
O23 - Service: Norton AntiVirus Auto-Protect Service (navapsvc) - Symantec Corporation - C:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton AntiVirus Firewall Monitor Service (NPFMntor) - Symantec Corporation - C:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
O23 - Service: Norton Protection Center Service (NSCService) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\Security Console\NSCSRVCE.EXE
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: Symantec AVScan (SAVScan) - Symantec Corporation - C:\Program Files\Norton AntiVirus\SAVScan.exe