一共有三种情况:
1 主页被更改,然后打开IE之后,就被卡卡拦住了,改回为空白页,过一段时间后,又会出现.
2 自动弹出广告,都是金山毒霸的广告.不知道该怎么阻止.
3 在打开网页连接的时候,有时会自动打开新的连接,IE的地址栏先是显示C:\WINDOWS\system32\msibm\web\110\index.htm 然后就连到一个广告网站.
该怎么解决以上的问题?先谢谢大家了.

请用最新版Hijackthis1.99.1扫描一个log贴上来。

hijackThis下载地址见置顶贴
[必读]本版说明及常用小软件下载
http://forum.ikaka.com/topic.asp?board=67&artid=5188931

Logfile of HijackThis v1.99.1
Scan saved at 22:20:19, on 2006-1-26
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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\rising\rfw\rfwproxy.exe
C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
c:\program files\rising\rfw\rfwsrv.exe
C:\Program Files\rising\Rav\Ravmond.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
c:\program files\rising\rfw\RfwMain.exe
C:\WINDOWS\System32\Ati2evxx.exe
C:\Program Files\Common Files\Autodesk Shared\Service\AdskScSrv.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\UStorSrv.exe
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\WINDOWS\ATK0100\Hcontrol.exe
C:\Program Files\SAMSUNG\Keydefin\KeyDefin.exe
C:\WINDOWS\AGRSMMSG.exe
C:\Program Files\rising\Rav\RavTask.exe
C:\WINDOWS\ATK0100\ATKOSD.exe
D:\Program Files\D-Tools\daemon.exe
C:\WINDOWS\system32\RUNDLL32.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\System32\svchost.exe
D:\Program Files\Tencent\qq\TIMPlatform.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Documents and Settings\thomson\桌面\248783200522382732\HijackThis.exe

O2 - BHO: ThunderIEHelper Class - {0005A87D-D626-4B3A-84F9-1D9571695F55} - C:\WINDOWS\system32\xunleibho_v8.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - D:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: NaviHelperObj Class - {3E422F49-1566-40D3-B43D-077EF739AC32} - C:\WINDOWS\NaviHelper.dll
O2 - BHO: BHelper - {8A4280AD-9B37-4922-A51D-73F3C3A32AF7} - C:\WINDOWS\system32\msibm\cfsbho.dll
O2 - BHO: IeCatch2 Class - {A5366673-E8CA-11D3-9CD9-0090271D075B} - D:\PROGRA~1\FlashGet\jccatch.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: IEHlprObj Class - {CE7C3CF0-4B15-11D1-ABED-709549C10000} - C:\WINDOWS\system32\qylhelper.dll
O3 - Toolbar: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - D:\PROGRA~1\FlashGet\fgiebar.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: 卡卡上网安全助手 - {DB9ECD4F-FB8F-4311-B3CE-90B976C2707C} - C:\WINDOWS\system32\kakatool.dll
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [SynTPLpr] C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [Hcontrol] C:\WINDOWS\ATK0100\Hcontrol.exe
O4 - HKLM\..\Run: [SAMSUNG Keydefin] C:\Program Files\SAMSUNG\Keydefin\KeyDefin.exe
O4 - HKLM\..\Run: [AGRSMMSG] AGRSMMSG.exe
O4 - HKLM\..\Run: [RavTask] "C:\Program Files\rising\Rav\RavTask.exe" -system
O4 - HKLM\..\Run: [RfwMain] "C:\Program Files\rising\Rfw\rfwmain.exe" -Startup
O4 - HKLM\..\Run: [DAEMON Tools-1033] "D:\Program Files\D-Tools\daemon.exe"  -lang 1033
O4 - HKLM\..\Run: [mscfs] RUNDLL32 C:\WINDOWS\system32\msibm\cfsys.dll,cfs
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O8 - Extra context menu item: &使用迅雷下载 - D:\Program Files\Thunder Network\Thunder\geturl.htm
O8 - Extra context menu item: &使用迅雷下载全部链接 - D:\Program Files\Thunder Network\Thunder\getallurl.htm
O8 - Extra context menu item: Google 搜索(&G) - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: 上传到QQ网络硬盘 - D:\Program Files\Tencent\qq\AddToNetDisk.htm
O8 - Extra context menu item: 使用网际快车下载 - D:\Program Files\FlashGet\jc_link.htm
O8 - Extra context menu item: 使用网际快车下载全部链接 - D:\Program Files\FlashGet\jc_all.htm
O8 - Extra context menu item: 反向链接 - res://C:\Program Files\Google\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: 导出到 Microsoft Office Excel(&X) - res://D:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: 添加到QQ自定义面板 - D:\Program Files\Tencent\qq\AddPanel.htm
O8 - Extra context menu item: 添加到QQ表情 - D:\Program Files\Tencent\qq\AddEmotion.htm
O8 - Extra context menu item: 用QQ彩信发送该图片 - D:\Program Files\Tencent\qq\SendMMS.htm
O8 - Extra context menu item: 类似网页 - res://C:\Program Files\Google\GoogleToolbar1.dll/cmsimilar.html
O8 - Extra context menu item: 缓存的网页快照 - res://C:\Program Files\Google\GoogleToolbar1.dll/cmcache.html
O8 - Extra context menu item: 翻译英文字词(&T) - res://C:\Program Files\Google\GoogleToolbar1.dll/cmwordtrans.html
O9 - Extra button: 信息检索 - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - D:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - D:\PROGRA~1\FlashGet\flashget.exe
O9 - Extra 'Tools' menuitem: &FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - D:\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
O9 - Extra button: 访问瑞星网站 - {FF2DE7A6-ECB1-4CBC-9C0E-D92A9E66E444} - http://www.rising.com.cn/?u=RSTB (file missing)
O9 - Extra button: 访问卡卡社区 - {FF2DE7A6-ECB1-4CBC-9C0E-D92A9E66E445} - http://www.ikaka.com/?u=RSTB (file missing)
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1127527020072
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1127531238348
O16 - DPF: {78AF2F24-A9C3-11D3-BF8C-0060B0FCC122} (AcDcToday Control) - file://D:\Program Files\AutoCAD 2002\AcDcToday.ocx
O16 - DPF: {AE563720-B4F5-11D4-A415-00108302FDFD} (NOXLATE-BANR) - file://D:\Program Files\AutoCAD 2002\InstBanr.ocx
O16 - DPF: {C6637286-300D-11D4-AE0A-0010830243BD} (InstaFred) - file://D:\Program Files\AutoCAD 2002\InstFred.ocx
O16 - DPF: {E4E2F180-CB8B-4DE9-ACBB-DA745D3BA153} (Rising Web Scan Object) - http://download.rising.com.cn/register/pcver/autoupgradepad/Ver2005/OL2005.cab
O16 - DPF: {F281A59C-7B65-11D3-8617-0010830243BD} (AcPreview Control) - file://D:\Program Files\AutoCAD 2002\AcPreview.ocx
O23 - Service: Adobe LM Service - Unknown owner - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: Autodesk Licensing Service - Unknown owner - C:\Program Files\Common Files\Autodesk Shared\Service\AdskScSrv.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: kavsvc - Kaspersky Lab - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus Personal\kavsvc.exe
O23 - Service: Rising Proxy  Service (RfwProxySrv) - Beijing Rising Technology Co., Ltd. - c:\program files\rising\rfw\rfwproxy.exe
O23 - Service: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Co., Ltd. - c:\program files\rising\rfw\rfwsrv.exe
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
O23 - Service: UStorage Server Service - OTi - C:\WINDOWS\system32\UStorSrv.exe

进入C:\WINDOWS\System32\msibm\双击uninstall.exe卸载msibm

重新启动电脑, 开机检测完后, 按[F8]键(可以一直按到启动菜单出来为止), 选择安全模式进入Windows

运行Hijackthis，扫描结束后在下列选项前打上勾，然后选修复“Fix Checked”：

O2 - BHO: NaviHelperObj Class - {3E422F49-1566-40D3-B43D-077EF739AC32} - C:\WINDOWS\NaviHelper.dll
O2 - BHO: BHelper - {8A4280AD-9B37-4922-A51D-73F3C3A32AF7} - C:\WINDOWS\system32\msibm\cfsbho.dll
O2 - BHO: IEHlprObj Class - {CE7C3CF0-4B15-11D1-ABED-709549C10000} - C:\WINDOWS\system32\qylhelper.dll
O4 - HKLM\..\Run: [mscfs] RUNDLL32 C:\WINDOWS\system32\msibm\cfsys.dll,cfs

显示隐藏文件

双击我的电脑--工具---文件夹选项--查看选项卡--单击选取"显示隐藏文件或文件夹"--清除"隐藏受保护的操作系统文件（推荐）"复选框。在提示您确定更改时，单击“是”--单击“确定”。

然后找到如下文件并删除（如果有的话）。

C:\WINDOWS\NaviHelper.dll
C:\WINDOWS\system32\msibm\整个目录
C:\WINDOWS\system32\qylhelper.dll

谢谢斑竹