不是开机立即出现。偶尔会在下面弹出来个黄颜色的提示框:your computer might be at risk

Logfile of HijackThis v1.99.1
Scan saved at 6:54:29, on 05-7-28
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\PROGRAM FILES\RISING\RAV\RAVMOND.EXE
C:\PROGRAM FILES\RISING\RAV\RAVMON.EXE
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\WINDOWS\SYSTEM\KB891711\KB891711.EXE
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\RUNDLL32.EXE
C:\WINDOWS\TASKMON.EXE
C:\WINDOWS\SYSTEM\INTERNAT.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\WINDOWS\RUNDLL32.EXE
C:\WINDOWS\LOADQM.EXE
C:\WINDOWS\SOUNDMAN.EXE
C:\WINDOWS\SYSTEM\STIMON.EXE
C:\PROGRAM FILES\RISING\RAV\RAVTIMER.EXE
C:\WINDOWS\SYSTEM\USBMONIT.EXE
C:\PROGRAM FILES\COMMON FILES\REAL\UPDATE_OB\REALSCHED.EXE
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\WINDOWS\SYSTEM\RNAAPP.EXE
C:\WINDOWS\SYSTEM\TAPISRV.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
D:\HIJACKTHIS\HIJACKTHIS.EXE

O2 - BHO: IE - {D157330A-9EF3-49F8-9A67-4141AC41ADD4} - C:\WINDOWS\DOWNLOADED PROGRAM FILES\CNSHOOK.DLL
O2 - BHO: AssistII - {BB936323-19FA-4521-BA29-ECA6A121BC78} - C:\PROGRAM FILES\3721\ASSIST\ASBAR.DLL
O3 - Toolbar: 上网助手 - {BB936323-19FA-4521-BA29-ECA6A121BC78} - C:\PROGRAM FILES\3721\ASSIST\ASBAR.DLL
O3 - Toolbar: 电台(&R) - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O4 - HKLM\..\Run: [ScanRegistry] C:\WINDOWS\scanregw.exe /autorun
O4 - HKLM\..\Run: [TaskMonitor] C:\WINDOWS\taskmon.exe
O4 - HKLM\..\Run: [internat.exe] internat.exe
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [CnsMin] Rundll32.exe C:\WINDOWS\DOWNLO~1\CNSMIN.DLL,Rundll32
O4 - HKLM\..\Run: [helper.dll] C:\WINDOWS\rundll32.exe C:\PROGRA~1\3721\helper.dll,Rundll32
O4 - HKLM\..\Run: [LoadQM] loadqm.exe
O4 - HKLM\..\Run: [SoundMan] soundman.exe
O4 - HKLM\..\Run: [StillImageMonitor] C:\WINDOWS\SYSTEM\STIMON.EXE
O4 - HKLM\..\Run: [RavTimer] C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
O4 - HKLM\..\Run: [Gene USB Monitor] C:\WINDOWS\SYSTEM\USBMonit.exe
O4 - HKLM\..\Run: [RavMon] C:\PROGRA~1\RISING\RAV\RAVMON.EXE -SYSTEM
O4 - HKLM\..\Run: [QuickTime Task] "C:\WINDOWS\SYSTEM\QTTASK.EXE" -atboottime
O4 - HKLM\..\Run: [_Cat3] C:\WINDOWS\msmsgrxp.exe
O4 - HKLM\..\Run: [BoundRec] Serviceprocess.exe
O4 - HKLM\..\Run: [syspanel] ms-its.exe
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe"  -osboot
O4 - HKLM\..\RunServices: [RsCcenter] C:\PROGRA~1\RISING\RAV\CCENTER.EXE
O4 - HKLM\..\RunServices: [RavMond] C:\PROGRA~1\RISING\RAV\RAVMOND.EXE
O4 - HKLM\..\RunServices: [RavMon] C:\PROGRA~1\RISING\RAV\RAVMON.EXE -SYSTEM
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [SchedulingAgent] C:\WINDOWS\SYSTEM\mstask.exe
O4 - HKLM\..\RunServices: [KB891711] C:\WINDOWS\SYSTEM\KB891711\KB891711.EXE
O4 - HKCU\..\Run: [WareOut] "C:\Program Files\WareOut\WareOut.exe"
O4 - HKCU\..\Run: [zantu] pizda.exe
O4 - HKCU\..\Run: [ParisM] iehelper.exe
O4 - HKCU\..\Run: [newbreed] driver32.exe
O4 - Startup: Microsoft Office.lnk = D:\office2000\Office\OSA9.EXE
O8 - Extra context menu item: 添加到QQ自定义面板 - E:\QQ\QQ\AddPanel.htm
O8 - Extra context menu item: 添加到QQ表情 - E:\QQ\QQ\AddEmotion.htm
O8 - Extra context menu item: 用QQ彩信发送该图片 - E:\QQ\QQ\SendMMS.htm
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra button: 上网助手 - {5D73EE86-05F1-49ed-B850-E423120EC338} - http://assistant.3721.com/index.htm?fb=Cns (file missing)
O9 - Extra button: 寻宝乐趣多 - {59BC54A2-56B3-44a0-93E5-432D58746E26} - http://hot.3721.com/rd/shop_btn.htm (file missing)
O9 - Extra button: Yahoo 1G电邮 - {507F9113-CD77-4866-BA92-0E86DA3D0B97} - http://cn.mail.yahoo.com/promo/rd1 (file missing)
O9 - Extra button: 情景聊天 - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - http://cn.rd.yahoo.com/home/messenger/bjk/clientbtn/?http://cn.messenger.yahoo.com/ (file missing)
O9 - Extra button: 手机短信 - {00000000-0000-0001-0001-596BAEDD1289} - http://sms.3721.com/ie/index.htm (file missing)
O9 - Extra button: (no name) - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://assistant.3721.com/clean1.htm?fb=Cns (file missing)
O9 - Extra 'Tools' menuitem: 清理上网记录 - {FD00D911-7529-4084-9946-A29F1BDF4FE5} - http://assistant.3721.com/clean1.htm?fb=Cns (file missing)
O9 - Extra button: (no name) - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://assistant.3721.com/security1.htm?fb=Cns (file missing)
O9 - Extra 'Tools' menuitem: 修复浏览器 - {ECF2E268-F28C-48d2-9AB7-8F69C11CCB71} - http://assistant.3721.com/security1.htm?fb=Cns (file missing)
O11 - Options group: [!CNS]  网络实名
O16 - DPF: {2354A44B-3CEB-4829-9940-545B03103538} (PowerPlr Control) - http://bbsky.wuhan.net.cn/plugin/PowerPlr.ocx
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/msnmessengersetupdownloader.cab
O16 - DPF: {0400AC1C-EEF0-4638-A501-31D5A0DC2002} (VTPlug3 Class) - http://61.152.96.82:1995/VTrans.cab
O16 - DPF: {DF6FE46D-1D23-4668-AD3A-CDEA1262B282} (PowerDld Control) - http://bbsky.wuhan.net.cn/plugin/PowerDld.ocx
O16 - DPF: {65A2AF26-BF84-49FA-B0AA-BC57B7B656A5} (XINTVClientAuthX Control) - http://www.xintv.com/shcentell/xinhua/download/XINTVClientAuthX.cab
O16 - DPF: {11010101-1001-1111-1000-110112345678} - ms-its:mhtml:file://C:oo.mht!http://209.190.137.32/web.chm::/win32.exe
O16 - DPF: {11212111-2121-1311-1141-115611111222} - ms-its:mhtml:file://d: oo.mht!http://195.95.218.83/users/sale/web/axe/x.chm::/update.exe
O16 - DPF: {24311111-1111-1121-1111-111191113457} - file://c:\eied_s7.cab
O16 - DPF: {E4E2F180-CB8B-4DE9-ACBB-DA745D3BA153} (Rising Web Scan Object) - http://download.rising.com.cn/register/pcver/autoupgradepad/Ver2005/OL2005.cab
O16 - DPF: {73E4740C-08EB-4133-896B-8D0A7C9EE3CD} (AxInputControl Class) - https://mybank.icbc.com.cn/icbc/perbank/AxSafeControls.cab
O17 - HKLM\System\CCS\Services\VxD\MSTCP: NameServer = 69.50.184.86,85.255.112.9

而且有个奇怪的现象
刚开机时电脑的两个进程explorer.exe和systray是正常的
但只要一连接上网这两个进程就消失了。。而且好象只要有
任何的操作，这两个进程就会消失

谁能帮我看一下吗？帮帮忙啊。。。。。。。。

重新启动到安全模式（进入安全模式的方法:重新启动电脑, 开机自动检测完后, 按[F8]键(可以一直按到启动菜单出来为止), 选择安全模式(Safe Mode)进入Windows。）

请关闭所有IE界面，重新使用HijackThis扫描一次，选中下面建议修复的项目，让HijackThis修复，修复前请允许HijackThis保留备份。（如果楼主知道是安全的可以不必勾选）
O4 - HKLM\..\Run: [_Cat3] C:\WINDOWS\msmsgrxp.exe
O4 - HKLM\..\Run: [BoundRec] Serviceprocess.exe
O4 - HKLM\..\Run: [syspanel] ms-its.exe
O4 - HKCU\..\Run: [zantu] pizda.exe
O4 - HKCU\..\Run: [ParisM] iehelper.exe
O4 - HKCU\..\Run: [newbreed] driver32.exe
O16 - DPF: {0400AC1C-EEF0-4638-A501-31D5A0DC2002} (VTPlug3 Class) - http://61.152.96.82:1995/VTrans.cab
O16 - DPF: {DF6FE46D-1D23-4668-AD3A-CDEA1262B282} (PowerDld Control) - http://bbsky.wuhan.net.cn/plugin/PowerDld.ocx
O16 - DPF: {11010101-1001-1111-1000-110112345678} - ms-its:mhtml:file://C: oo.mht!http://209.190.137.32/web.chm::/win32.exe
O16 - DPF: {11212111-2121-1311-1141-115611111222} - ms-its:mhtml:file://d: oo.mht!http://195.95.218.83/users/sale/web/axe/x.chm::/update.exe
O16 - DPF: {24311111-1111-1121-1111-111191113457} - file://c:\eied_s7.cab

然后打开我的电脑。。再点工具。。打开文件夹选项。。。查看。。。把隐藏受保护的系统文件（推荐）和隐藏已知文件类型的扩展名的勾去掉。再显示所有文件。 用WINDOWS的查找功能进行查找并删除：
C:\WINDOWS\msmsgrxp.exe
C: oo.mht!
c:\eied_s7.cab

用WINDOWS的查找功能进行查找并删除：
Serviceprocess.exe
ms-its.exe
pizda.exe
iehelper.exe
driver32.exe