我中了trojan.dl.agent.mfu 病毒，看到你给别人的解答，
就按照你的方法下载HijackThis
下载后运行HijackThis.rar,再运行HijackThis.exe
保存的日志：
Logfile of HijackThis v1.99.1
Scan saved at 11:34:24, on 2006-10-7
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\csrss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\savedump.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
d:\Program Files\Rising\Rav\CCenter.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
D:\Program Files\Rising\Rav\Ravmond.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\drivers\CDAC11BA.EXE
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\SYSTEM32\RUNDLL.EXE
C:\WINDOWS\system32\rundll32.exe
D:\Program Files\Rising\Rav\RavStub.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\alg.exe
D:\Program Files\Adobe\Acrobat 7.0\Distillr\Acrotray.exe
C:\PROGRA~1\Kuree\kpupdate.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\system\realsched.exe
C:\WINDOWS\system32\IntelFile.exe
C:\Program Files\Common Files\UPDATE2\Update.exe
D:\Program Files\Rising\Rav\RavTask.exe
C:\WINDOWS\system32\Rundll32.exe
D:\Program Files\Rising\Rav\Ravmon.exe
C:\WINDOWS\system32\ctfmon.exe
D:\Program Files\Adobe\Acrobat 7.0\Acrobat\acrobat_sl.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Documents and Settings\Administrator\桌面\HijackThis.exe

R3 - URLSearchHook: bho Class - {ED8DFC5C-10EF-45AB-9DC2-0639AFF5A270} - C:\PROGRA~1\COMMON~1\Wnwb\wnwbio.dll
F2 - REG:system.ini: UserInit=userinit.exe,
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - D:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: BHO.clsInetSpeak - {0CD5C894-57C5-44BB-9D73-84AE18E2D938} - C:\WINDOWS\system32\msidb.dll
O2 - BHO: AdPopup - {11F09AFD-75AD-4E51-AB43-E09E9351CE16} - C:\Program Files\Common Files\CPUSH\cpush.dll
O2 - BHO: MyIEHelper Class - {16B770A0-0E87-4278-B748-2460D64A8386} - C:\Documents and Settings\All Users\Application Data\Microsoft\UserData\IEHelper_5001.dll (file missing)
O2 - BHO: raObject Class - {46F194EB-B7DB-4B7A-BD42-5FF39FD17664} - C:\PROGRA~1\pcast\hbcast.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:\WINDOWS\SYSTEM32\stdup.dll
O2 - BHO: BHOImp Class - {70AFF2CB-9DA2-499C-8D15-900729FCE83D} - C:\WINDOWS\system32\YHBO.dll (file missing)
O2 - BHO: BandIE Class - {77FEF28E-EB96-44FF-B511-3185DEA48697} - C:\PROGRA~1\baidu\bar\BaiduBar.dll
O2 - BHO: AcroIEToolbarHelper Class - {AE7CD045-E861-484f-8273-0445EE161910} - D:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll
O2 - BHO: Subconscious Intruder - {EBBC6E6D-7B65-46be-B509-86CED2D17876} - C:\WINDOWS\system32\Inte32.dll (file missing)
O2 - BHO: update wnwb - {ED8DFC5C-10EF-45AB-9DC2-0639AFF5A270} - C:\PROGRA~1\COMMON~1\Wnwb\wnwbio.dll
O2 - BHO: iebar - {F3A84AA2-A658-42A6-B701-6E43EF08C6C6} - C:\WINDOWS\system32\Ndvdsapi32.dll (file missing)
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - D:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll
O3 - Toolbar: 百度超级搜霸 - {B580CF65-E151-49C3-B73F-70B13FCA8E86} - C:\PROGRA~1\baidu\bar\BaiduBar.dll
O4 - HKLM\..\Run: [Acrobat Assistant 7.0] "D:\Program Files\Adobe\Acrobat 7.0\Distillr\Acrotray.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [realtpsk] C:\WINDOWS\system\realsched.exe
O4 - HKLM\..\Run: [IntelFile] C:\WINDOWS\system32\IntelFile.exe
O4 - HKLM\..\Run: [Update] C:\Program Files\Common Files\UPDATE2\Update.exe
O4 - HKLM\..\Run: [RavTask] "d:\Program Files\Rising\Rav\RavTask.exe" -system
O4 - HKLM\..\Run: [RichMedia] C:\WINDOWS\system32\Rundll32.exe  "C:\PROGRA~1\pcast\hbcast.dll",WaitWindows
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [bgswitch] C:\WINDOWS\system32\bgswitch.exe
O4 - Global Startup: Adobe Acrobat Speed Launcher.lnk = ?SystemRoot%\Installer\{AC76BA86-2052-0000-7760-100000000002}\SC_Acrobat.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Microsoft Office.lnk = D:\Program Files\Microsoft Office\Office10\OSA.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: 导出到 Microsoft Excel(&x) - res://D:\PROGRA~1\MICROS~1\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: 百度--MP3搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDUMP3.HTM
O8 - Extra context menu item: 百度--图片搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDUIMG.HTM
O8 - Extra context menu item: 百度--地图搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDU_MAP.HTM
O8 - Extra context menu item: 百度--新闻搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDUNEWS.HTM
O8 - Extra context menu item: 百度--歌词搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDULYRIC.HTM
O8 - Extra context menu item: 百度--知道搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDU_ZHIDAO.HTM
O8 - Extra context menu item: 百度--硬盘搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDU_DISK.HTM
O8 - Extra context menu item: 百度--站内搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDU_SITE.HTM
O8 - Extra context menu item: 百度--网页搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDUSEARCH.HTM
O8 - Extra context menu item: 百度--词典搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDU_DIC.HTM
O8 - Extra context menu item: 百度--贴吧搜索 - RES://C:\PROGRA~1\baidu\bar\baidubar.dll/BAIDUPOST.HTM
O8 - Extra context menu item: 豪杰超级解霸V8实时播放 - C:\Herosoft\HeroV8\MPURLGET.HTM
O8 - Extra context menu item: 转换为 Adobe PDF - res://D:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: 转换为现有 PDF - res://D:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: 转换选定的链接为 Adobe PDF - res://D:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: 转换选定的链接为现有 PDF - res://D:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: 转换选项为 Adobe PDF - res://D:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: 转换选项为现有 PDF - res://D:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: 转换链接目标为 Adobe PDF - res://D:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: 转换链接目标为现有 PDF - res://D:\Program Files\Adobe\Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O9 - Extra button: 酷标 - {1D901067-2529-4A9B-9B6B-7A1DB3A44CB5} - C:\Program Files\coolsign\coolsign.dll
O9 - Extra button: 豪杰超级解霸V8 - {367E0A21-8601-4986-9C9A-153BF5ACA118} - C:\Herosoft\HeroV8\STHSDVD.EXE
O9 - Extra 'Tools' menuitem: 豪杰超级解霸V8 - {367E0A21-8601-4986-9C9A-153BF5ACA118} - C:\Herosoft\HeroV8\STHSDVD.EXE
O9 - Extra button: 番茄花园 - {6096E38F-5AC1-4391-8EC4-75DFA92FB32F} - http://www.tomatolei.com (file missing)
O9 - Extra 'Tools' menuitem: 番茄花园 - {6096E38F-5AC1-4391-8EC4-75DFA92FB32F} - http://www.tomatolei.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
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - "C:\PROGRA~1\MSNMES~1\msgrapp.dll" (file missing)
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O21 - SSODL: DelayRun - {5A6F2F95-3191-433B-8533-EB0B596A7BAC} - C:\WINDOWS\a66dde40.dll (file missing)
O21 - SSODL: webwork - {4C611512-2C1D-44b2-A044-872AD2AD5A61} - C:\WINDOWS\webwork\webwork.dll
O21 - SSODL: MediaCheck - {D1F73845-4BAB-4061-A46B-FCF7ECC19217} - C:\PROGRA~1\Kuree\MService.dll
O23 - Service: C-DillaCdaC11BA - Macrovision - C:\WINDOWS\system32\drivers\CDAC11BA.EXE
O23 - Service: Groove Installer Service (GrooveInstallerService) - Groove Networks, Inc. - C:\Program Files\Groove Networks\Groove\Bin\GrooveInstallerService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: Rising Process Communication Center (RsCCenter) - Beijing Rising Technology Co., Ltd. - d:\Program Files\Rising\Rav\CCenter.exe
O23 - Service: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - D:\Program Files\Rising\Rav\Ravmond.exe

还是不行也！！！！
病毒还在也

c:\Documents and settings\ALL user\application data\microsoft\userdata\IEHELPER_5001.DLL