如题：机器经常出现60秒自动关机提示。请斑竹麻烦看看。谢谢！日志如下：
Logfile of HijackThis v1.99.1
Scan saved at 19:26:30, on 2006-9-5
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:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
C:\Program Files\Rising\Rav\Ravmond.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\WINNT\csrss.exe
C:\WINNT\system32\svchost.exe
C:\Program Files\Rising\Rav\RavStub.exe
C:\WINNT\system32\rundll32.exe
C:\Program Files\Rising\Rav\RavService.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\system32\rundll32.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\Explorer.EXE
C:\WINNT\system32\rundll32.exe
C:\Program Files\Java\jre1.5.0\bin\jusched.exe
C:\Program Files\Rising\Rav\RavTray.exe
C:\Program Files\Rising\Rav\RavTask.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\Rising\Rav\Ravmon.exe
C:\WINNT\system32\internat.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\IPMsg\ipmsg.exe
C:\Program Files\WinRAR\WinRAR.exe
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\Rar$EX00.238\HijackThis.exe

R3 - URLSearchHook: YOK Search Class - {88351CEF-BAC0-4A9B-8380-31A173E2926F} - C:\PROGRA~1\YOK.com\SUPERS~1\YOK_SuperSearch.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: WinSearch - {27E96DE0-8211-42CF-9A1E-FA6246A95B77} - C:\WINNT\system32\winsearch.dll
O2 - BHO: QQIEHelper - {54EBD53A-9BC1-480B-966A-843A333CA162} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O2 - BHO: Vision - {6671A431-5C3D-463d-A7CF-5587F9B7E191} - C:\PROGRA~1\MMSASS~1\mmsass~1.dll
O2 - BHO: stdup - {6A512BF7-EC78-4e8d-9841-6C02E8FA9838} - C:\WINNT\SYSTEM32\stdup.dll
O2 - BHO: 珊瑚虫工具栏 - {75FE2B5A-D3A4-4EFA-AC11-ADC9C9459688} - C:\PROGRA~1\YOK.com\SUPERS~1\YOK_SuperSearch.dll
O2 - BHO: bg - {7BDAF75A-0D6F-4F50-AFE9-333D08DF4005} - C:\Program Files\baigoo\BGooBHO.dll (file missing)
O2 - BHO: IeCatch2 Class - {A5366673-E8CA-11D3-9CD9-0090271D075B} - C:\PROGRA~1\FlashGet\jccatch.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O2 - BHO: Flash 8 ocx  - {B8CCDD47-38E4-4CD2-B7FA-3B4B690F74BD} - C:\WINNT\system32\flash8.dll
O2 - BHO: Letscool System Helper - {F0C15012-7DBD-4068-95A2-0A82DB03AC35} - C:\WINNT\system32\CoolBho.dll
O3 - Toolbar: @msdxmLC.dll,-1@2052,电台(&R) - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\system32\msdxm.ocx
O3 - Toolbar: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - C:\PROGRA~1\FlashGet\fgiebar.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: 珊瑚虫工具栏 - {F869BB38-FFEF-4589-B986-610B7AD0ADA2} - C:\PROGRA~1\YOK.com\SUPERS~1\YOK_SuperSearch.dll
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0\bin\jusched.exe
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [RavTray] "C:\Program Files\Rising\Rav\RavTray.exe"
O4 - HKLM\..\Run: [RavTask] "C:\Program Files\Rising\Rav\RavTask.exe" -system
O4 - HKLM\..\Run: [YOKAssiant] Rundll32.exe C:\PROGRA~1\YOK.com\SUPERS~1\YOK_SuperSearch.dll,YOKAssiant
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe"  -osboot
O4 - HKLM\..\Run: [bgoomain.exe] C:\PROGRA~1\baigoo\bgoomain.exe
O4 - HKLM\..\Run: [SKYNET Personal FireWall] C:\Program Files\SkyNet\FireWall\PFW.exe
O4 - HKCU\..\Run: [internat.exe] internat.exe
O8 - Extra context menu item: >>彩信发送<< - res://C:\PROGRA~1\MMSASS~1\mmsass~1.dll/mms.htm
O8 - Extra context menu item: Google 搜索(&G) - res://c:\program files\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: 上传到QQ网络硬盘 - C:\Program Files\Tencent\QQ\AddToNetDisk.htm
O8 - Extra context menu item: 使用网际快车下载 - C:\PROGRA~1\FlashGet\jc_link.htm
O8 - Extra context menu item: 使用网际快车下载全部链接 - C:\PROGRA~1\FlashGet\jc_all.htm
O8 - Extra context menu item: 反向链接 - res://c:\program files\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: 添加到QQ自定义面板 - C:\Program Files\Tencent\QQ\AddPanel.htm
O8 - Extra context menu item: 添加到QQ表情 - C:\Program Files\Tencent\QQ\AddEmotion.htm
O8 - Extra context menu item: 用QQ彩信发送该图片 - C:\Program Files\Tencent\QQ\SendMMS.htm
O8 - Extra context menu item: 类似网页 - res://c:\program files\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: 缓存的网页快照 - res://c:\program files\google\GoogleToolbar2.dll/cmcache.html
O8 - Extra context menu item: 翻译英文字词(&T) - res://c:\program files\google\GoogleToolbar2.dll/cmwordtrans.html
O9 - Extra button: JUJU猫 - {6096E38F-5AC1-4391-8EC4-75DFA92FB32F} - http://www.jujumao.com (file missing)
O9 - Extra button: (no name) - {6671A433-5C3D-463d-A7CF-5587F9B7E191} - C:\PROGRA~1\MMSASS~1\mmsass~1.dll
O9 - Extra 'Tools' menuitem: 彩E精灵设置 - {6671A433-5C3D-463d-A7CF-5587F9B7E191} - C:\PROGRA~1\MMSASS~1\mmsass~1.dll
O9 - Extra button: 酷热影音 - {7D73FF86-05F1-39ed-C850-A423120EC338} - www.kuree.com/index.htm?id=00011001 (file missing)
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
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: (no name) - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O9 - Extra 'Tools' menuitem: QQ炫彩工具条设置 - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - C:\Program Files\Tencent\QQ\QQIEHelper.dll
O14 - IERESET.INF: START_PAGE_URL=about:blank
O17 - HKLM\System\CCS\Services\Tcpip\..\{A2F1BA3E-DD53-432B-A24D-DB1B585E9B05}: NameServer = 172.16.0.2,202.99.160.68
O17 - HKLM\System\CS1\Services\Tcpip\..\{A2F1BA3E-DD53-432B-A24D-DB1B585E9B05}: NameServer = 172.16.0.2,202.99.160.68
O17 - HKLM\System\CS2\Services\Tcpip\..\{A2F1BA3E-DD53-432B-A24D-DB1B585E9B05}: NameServer = 172.16.0.2,202.99.160.68
O18 - Protocol: about - {3050F406-98B5-11CF-BB82-00AA00BDCE0B} - C:\WINNT\system32\mshtml.dll
O18 - Protocol: cdl - {3DD53D40-7B8B-11D0-B013-00AA0059CE02} - C:\WINNT\system32\urlmon.dll
O18 - Protocol: file - {79EAC9E7-BAF9-11CE-8C82-00AA004BA90B} - C:\WINNT\system32\urlmon.dll
O18 - Protocol: ftp - {79EAC9E3-BAF9-11CE-8C82-00AA004BA90B} - C:\WINNT\system32\urlmon.dll
O18 - Protocol: gopher - {79EAC9E4-BAF9-11CE-8C82-00AA004BA90B} - C:\WINNT\system32\urlmon.dll
O18 - Protocol: http - {79EAC9E2-BAF9-11CE-8C82-00AA004BA90B} - C:\WINNT\system32\urlmon.dll
O18 - Protocol: https - {79EAC9E5-BAF9-11CE-8C82-00AA004BA90B} - C:\WINNT\system32\urlmon.dll
O18 - Protocol: ic32pp - {BBCA9F81-8F4F-11D2-90FF-0080C83D3571} - C:\WINNT\wc98pp.dll
O18 - Protocol: ipp - (no CLSID) - (no file)
O18 - Protocol: its - {9D148291-B9C8-11D0-A4CC-0000F80149F6} - C:\WINNT\system32\itss.dll
O18 - Protocol: javascript - {3050F3B2-98B5-11CF-BB82-00AA00BDCE0B} - C:\WINNT\system32\mshtml.dll
O18 - Protocol: local - {79EAC9E7-BAF9-11CE-8C82-00AA004BA90B} - C:\WINNT\system32\urlmon.dll
O18 - Protocol: mailto - {3050F3DA-98B5-11CF-BB82-00AA00BDCE0B} - C:\WINNT\system32\mshtml.dll
O18 - Protocol: mhtml - {05300401-BCBC-11D0-85E3-00C04FD85AB4} - C:\WINNT\system32\inetcomm.dll
O18 - Protocol: mk - {79EAC9E6-BAF9-11CE-8C82-00AA004BA90B} - C:\WINNT\system32\urlmon.dll
O18 - Protocol: ms-its - {9D148291-B9C8-11D0-A4CC-0000F80149F6} - C:\WINNT\system32\itss.dll
O18 - Protocol: msdaipp - (no CLSID) - (no file)
O18 - Protocol: res - {3050F3BC-98B5-11CF-BB82-00AA00BDCE0B} - C:\WINNT\system32\mshtml.dll
O18 - Protocol: sysimage - {76E67A63-06E9-11D2-A840-006008059382} - C:\WINNT\system32\mshtml.dll
O18 - Protocol: vbscript - {3050F3B2-98B5-11CF-BB82-00AA00BDCE0B} - C:\WINNT\system32\mshtml.dll
O18 - Protocol: vnd.ms.radio - {3DA2AA3B-3D96-11D2-9BD2-204C4F4F5020} - C:\WINNT\system32\msdxm.ocx
O21 - SSODL: webwork - {4C611512-2C1D-44b2-A044-872AD2AD5A61} - C:\WINNT\webwork\webwork.dll
O23 - Service: Clients Server Runtime Process - Unknown owner - C:\WINNT\csrss.exe
O23 - Service: Logical Disk Manager Administrative Service (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: RavService - Unknown owner - C:\Program Files\Rising\Rav\RavService.exe" /service (file missing)
O23 - Service: Rising Process Communication Center (RsCCenter) - Beijing Rising Technology Co., Ltd. - C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
O23 - Service: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - C:\Program Files\Rising\Rav\Ravmond.exe