我用1.99.1扫的。
Logfile of HijackThis v1.99.1
Scan saved at 17:42:44, on 2006-2-14
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:\WINDOWS\Explorer.EXE
F:\HijackThis1.99.0\HijackThis.exe
C:\WINDOWS\notepad.exe

R3 - Default URLSearchHook is missing
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - D:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: URLMonitor Class - {3ED9FFDA-79DB-4B2D-99B7-16EA3C4A3A92} - C:\WINDOWS\system32\hap.dll
O2 - BHO: QQIEHelper - {54EBD53A-9BC1-480B-966A-843A333CA162} - d:\Program Files\Tencent\QQ\QQIEHelper.dll
O2 - BHO: DownloadValue Class - {616D4040-5712-4F0F-BCF1-5C6420A99E14} - C:\WINDOWS\system32\winhtp.dll
O2 - BHO: ShowBarObject Class - {850B69E4-90DB-4F45-8621-891BF35A5B53} - C:\WINDOWS\system32\alitb1\bar.dll
O2 - BHO: (no name) - {C56CB6B0-0D96-11D6-8C65-B2868B609932}? - (no file)
O2 - BHO: IE - {D157330A-9EF3-49F8-9A67-4141AC41ADD4} - C:\WINDOWS\DOWNLO~1\CnsHook.dll
O2 - BHO: IE - {D157330A-9EF3-49F8-9A67-4141AC41ADD4}? - (no file)
O2 - BHO: Infofo 工具栏 - {D74EC18E-3DDD-4174-B1B1-949FE3B8366D} - C:\Program Files\Infofo Bar\infofobar.dll
O3 - Toolbar: (no name) - {3F1ABCDB-A875-46c1-8345-B72A4567E486}? - (no file)
O3 - Toolbar: (no name) - {D74EC18E-3DDD-4174-B1B1-949FE3B8366D}? - (no file)
O3 - Toolbar: 卡卡上网安全助手 - {DB9ECD4F-FB8F-4311-B3CE-90B976C2707C} - C:\WINDOWS\system32\kakatool.dll
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [CnsMin] Rundll32.exe C:\WINDOWS\DOWNLO~1\CnsMin.dll,Rundll32
O4 - HKLM\..\Run: [RfwMain] "D:\Program Files\rising\Rfw\rfwmain.exe" -startup
O4 - HKLM\..\Run: [RavTask] "C:\Program Files\Rising\Rav\RavTask.exe" -system
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O9 - Extra button: 手机短信 - {00000000-0000-0001-0001-596BAEDD1289}? - http://sms.3721.com/ie/index.htm (file missing)
O9 - Extra button: 商机直通车 - {13b0c05c-ef05-4bf6-b0ea-f6111af25544} - C:\WINDOWS\system32\alitb1\bar.dll
O9 - Extra button: Yahoo 1G电邮 - {507F9113-CD77-4866-BA92-0E86DA3D0B97}? - http://cn.mail.yahoo.com/promo/rd1 (file missing)
O9 - Extra button: 雅虎助手 - {5D73EE86-05F1-49ed-B850-E423120EC338}? - http://cn.zs.yahoo.com/?source=Cns (file missing)
O9 - Extra button: (no name) - {6671A433-5C3D-463d-A7CF-5587F9B7E191}? - C:\PROGRA~1\MMSASS~1\Mmsass~1.dll
O9 - Extra 'Tools' menuitem: MMSAssist工具条设置 - {6671A433-5C3D-463d-A7CF-5587F9B7E191}? - C:\PROGRA~1\MMSASS~1\Mmsass~1.dll
O9 - Extra button: Infofo 工具栏 - {8507326C-B5C1-4559-BB91-0919E753836F}? - C:\Program Files\Infofo Bar\infofobar.dll
O9 - Extra 'Tools' menuitem: Infofo 工具栏 - {8507326C-B5C1-4559-BB91-0919E753836F}? - C:\Program Files\Infofo Bar\infofobar.dll
O9 - Extra button: (no name) - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - d:\Program Files\Tencent\QQ\QQIEHelper.dll
O9 - Extra 'Tools' menuitem: QQ炫彩工具条设置 - {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} - d:\Program Files\Tencent\QQ\QQIEHelper.dll
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)
O11 - Options group: [!CNS]  网络实名
O16 - DPF: {2EA6D939-4445-43F1-A12B-8CB3DDA8B855} (BlueskyVideo Control) - http://www.bluesky.cn/download/v2_60.cab
O16 - DPF: {991481A7-4669-4E15-8C24-100404E1F5CB} (Blueskyvoice Control) - http://www.bluesky.cn/download/blueskyvoice_60.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{1FE73BBB-EF35-40EC-BC7E-603FAC84F5CB}: NameServer = 192.168.1.1
O17 - HKLM\System\CS1\Services\Tcpip\..\{1FE73BBB-EF35-40EC-BC7E-603FAC84F5CB}: NameServer = 192.168.1.1
O17 - HKLM\System\CS2\Services\Tcpip\..\{1FE73BBB-EF35-40EC-BC7E-603FAC84F5CB}: NameServer = 192.168.1.1
O18 - Protocol: ipp - (no CLSID) - (no file)
O18 - Protocol: msdaipp - (no CLSID) - (no file)
O23 - Service: Diskeeper - Executive Software International, Inc. - D:\Program Files\Executive Software\Diskeeper\DkService.exe
O23 - Service: O&O Defrag - O&O Software GmbH - C:\WINDOWS\system32\oodag.exe
O23 - Service: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Corporation Limited - d:\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: System Safety Monitor (SSM) - System Safety - C:\Program Files\System Safety Monitor\SSMService.exe

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）
R3 - Default URLSearchHook is missing
O2 - BHO: URLMonitor Class - {3ED9FFDA-79DB-4B2D-99B7-16EA3C4A3A92} - C:\WINDOWS\system32\hap.dll
O2 - BHO: DownloadValue Class - {616D4040-5712-4F0F-BCF1-5C6420A99E14} - C:\WINDOWS\system32\winhtp.dll
O2 - BHO: ShowBarObject Class - {850B69E4-90DB-4F45-8621-891BF35A5B53} - C:\WINDOWS\system32\alitb1\bar.dll
O2 - BHO: (no name) - {C56CB6B0-0D96-11D6-8C65-B2868B609932}? - (no file)
O2 - BHO: (no name) - {C56CB6B0-0D96-11D6-8C65-B2868B609932}? - (no file)
O2 - BHO: IE - {D157330A-9EF3-49F8-9A67-4141AC41ADD4}? - (no file)
O3 - Toolbar: (no name) - {3F1ABCDB-A875-46c1-8345-B72A4567E486}? - (no file)
O3 - Toolbar: (no name) - {D74EC18E-3DDD-4174-B1B1-949FE3B8366D}? - (no file)
O9 - Extra button: 商机直通车 - {13b0c05c-ef05-4bf6-b0ea-f6111af25544} - C:\WINDOWS\system32\alitb1\bar.dll
O9 - Extra button: (no name) - {6671A433-5C3D-463d-A7CF-5587F9B7E191}? - C:\PROGRA~1\MMSASS~1\Mmsass~1.dll
O9 - Extra 'Tools' menuitem: MMSAssist工具条设置 - {6671A433-5C3D-463d-A7CF-5587F9B7E191}? - C:\PROGRA~1\MMSASS~1\Mmsass~1.dll
O18 - Protocol: ipp - (no CLSID) - (no file)
O18 - Protocol: msdaipp - (no CLSID) - (no file)

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→找到以下文件并删除：(如果有的话)
C:\WINDOWS\system32\hap.dll
C:\WINDOWS\system32\winhtp.dll
删除文件夹C:\WINDOWS\system32\alitb1