[求助]如何删除Trojan horse Downloader small.17.N?

qazz1947

我的xp中了Trojan horse Downloader small.17.N。每一次开机时，AVG7.0.3 会自动扫描到并将它给删除。但是每一次从新开机这问题都会从新出现。曾经用了 NO Adware ，但是隔天它又出现。以下是用 hijack this扫描的结果：

Logfile of HijackThis v1.99.0
Scan saved at 21:36:07, on 24/01/2005
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\WINDOWS\System32\CTsvcCDA.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\PROGRA~1\MediaKey\KPDrv4XP.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\MSI\PC Alert 4\PCAlert4.exe
C:\WINDOWS\System32\MsPMSPSv.exe
C:\Program Files\MSI\PC Alert 4\CoolerXP.exe
D:\download.com\IDMan.exe
C:\Program Files\BitSpirit\BitSpirit.exe
C:\WINDOWS\system32\ntvdm.exe
C:\WINDOWS\system32\conime.exe
C:\Program Files\Opera7\opera.exe
C:\Program Files\Winamp\Winamp.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\WinRAR\WinRAR.exe
C:\DOCUME~1\CHIAKA~1\LOCALS~1\Temp\Rar$EX00.797\HijackThis\HijackThis.exe

R3 - URLSearchHook: assist - {1B0E7716-898E-48cc-9690-4E338E8DE1D3} - C:\PROGRA~1\3721\Assist\assist.dll (file missing)
O2 - BHO: IDM Helper - {0055C089-8582-441B-A0BF-17B458C2A3A8} - D:\download.com\IDMIECC.dll
O2 - BHO: Yahoo! Companion BHO - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\PROGRA~1\Yahoo!\COMPAN~1\Installs\cpn0\ycomp5_5_7_0.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: SafeGuard Protect PCShield - {564FFB73-9EEF-4969-92FA-5FC4A92E2C2A} - C:\WINDOWS\system32\sfg_687b.dll
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\googletoolbar1.dll
O2 - BHO: SavePicNoAsk PRO - {CC7C8206-344B-45AB-B898-78D06229268F} - C:\Program Files\UnH Solutions\SavePicNoAsk PRO\SPNAPROBHO.dll
O3 - Toolbar: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - C:\PROGRA~1\FlashGet\fgiebar.dll
O3 - Toolbar: &Yahoo! Companion - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\PROGRA~1\Yahoo!\COMPAN~1\Installs\cpn0\ycomp5_5_7_0.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: D?¨¤?|ì?|ì?¨a?§ - {F60C7D81-8471-4D40-AAFE-56D318F34C2D} - C:\WINDOWS\Downlo~1\DDTONG~1.DLL (file missing)
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [AVG7_EMC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
O4 - HKLM\..\Run: [LiveMonitor] C:\Program Files\MSI\Live Update 2\LMonitor.exe
O4 - HKLM\..\Run: [Jet Detection] "C:\Program Files\Creative\SBLive\PROGRAM\ADGJDet.exe"
O4 - HKLM\..\Run: [CTStartup] C:\Program Files\Creative\Splash Screen\CTEaxSpl.EXE /run
O4 - HKLM\..\Run: [USBKBDrv] C:\PROGRA~1\MediaKey\KPDrv4XP.EXE
O4 - HKLM\..\Run: [PCShield] regsvr32 /s "C:\WINDOWS\system32\sfg_687b.dll"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [Steam] "c:\valve\steam\steam.exe" -silent
O4 - HKCU\..\Run: [PCShield] regsvr32 /s "C:\WINDOWS\system32\sfg_687b.dll"
O4 - Startup: NaturalColorLoad.lnk = ?
O4 - Global Startup: Microsoft Office.hta
O4 - Global Startup: NaturalColorLoad.lnk = ?
O4 - Global Startup: PC Alert 4.lnk = C:\Program Files\MSI\PC Alert 4\PCAlert4.exe
O8 - Extra context menu item: &Download with &DAP - C:\PROGRA~1\DAP\dapextie.htm
O8 - Extra context menu item: &Google Search - res://c:\program files\google\GoogleToolbar1.dll/cmsearch.html
O8 - Extra context menu item: Download &all with DAP - C:\PROGRA~1\DAP\dapextie2.htm
O8 - Extra context menu item: Download All by FlashGet - C:\Program Files\FlashGet\jc_all.htm
O8 - Extra context menu item: Download All Links with IDM - D:\download.com\IEGetAll.htm
O8 - Extra context menu item: Download using FlashGet - C:\Program Files\FlashGet\jc_link.htm
O8 - Extra context menu item: Download with IDM - D:\download.com\IEExt.htm
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: 反向链接 - res://c:\program files\google\GoogleToolbar1.dll/cmbacklinks.html
O8 - Extra context menu item: 用比特精灵下载(&B) - C:\Program Files\BitSpirit\bsurl.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
O9 - Extra button: Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\Program Files\Yahoo!\Messenger\yhexbmes0521.dll
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\Program Files\Yahoo!\Messenger\yhexbmes0521.dll
O9 - Extra button: Yahoo 1G mail - {507F9113-CD77-4866-BA92-0E86DA3D0B97} - http://cn.mail.yahoo.com/promo/rd1 (file missing)
O9 - Extra button: E bazar - {59BC54A2-56B3-44a0-93E5-432D58746E26} - http://rd.3721.com/taobao.rd?htt ... dtaobao&bid=138,140,18&cid=816,8,1&sid=5042&show=ignore&url=http://www.taobao.com/buy1.php (file missing)
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {9819CC0E-9669-4D01-9CD7-2C66DA43AC6C} - (no file)
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: Instant Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - http://cn.rd.yahoo.com/home/mess ... essenger.yahoo.com/ (file missing)
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: SPNA PRO - {1FCAD22D-3FC8-4811-A247-9EBA202F01CE} - C:\Program Files\UnH Solutions\SavePicNoAsk PRO\SPNAPROBHO.dll (HKCU)
O10 - Unknown file in Winsock LSP: c:\windows\system32\idmmbc.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\idmmbc.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\idmmbc.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\idmmbc.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\idmmbc.dll
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O15 - Trusted Zone: http://free.aol.com
O16 - DPF: {205FF73B-CA67-11D5-99DD-444553540006} (CInstall Class) - http://www.errorguard.com/installation/Install.cab
O23 - Service: Ati HotKey Poller - Unknown - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: AVG7 Alert Manager Server - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\System32\CTsvcCDA.exe

austinlim

把以下的项目 打勾 Fix Checked

R3 - URLSearchHook: assist - {1B0E7716-898E-48cc-9690-4E338E8DE1D3} - C:\PROGRA~1\3721\Assist\assist.dll (file missing)
O2 - BHO: SafeGuard Protect PCShield - {564FFB73-9EEF-4969-92FA-5FC4A92E2C2A} - C:\WINDOWS\system32\sfg_687b.dll
O3 - Toolbar: D?¨¤?|ì?|ì?¨a?§ - {F60C7D81-8471-4D40-AAFE-56D318F34C2D} - C:\WINDOWS\Downlo~1\DDTONG~1.DLL (file missing)
O4 - HKLM\..\Run: [PCShield] regsvr32 /s "C:\WINDOWS\system32\sfg_687b.dll"
O4 - HKCU\..\Run: [PCShield] regsvr32 /s "C:\WINDOWS\system32\sfg_687b.dll"

O4 - Startup: NaturalColorLoad.lnk = ?
O4 - Global Startup: Microsoft Office.hta
O4 - Global Startup: NaturalColorLoad.lnk = ?

O9 - Extra button: Yahoo 1G mail - {507F9113-CD77-4866-BA92-0E86DA3D0B97} - http://cn.mail.yahoo.com/promo/rd1 (file missing)
O9 - Extra button: E bazar - {59BC54A2-56B3-44a0-93E5-432D58746E26} - http://rd.3721.com/taobao.rd?htt ... dtaobao&bid=138,140,18&cid=816,8,1&sid=5042&show=ignore&url=http://www.taobao.com/buy1.php (file missing)

O15 - Trusted Zone: http://free.aol.com
O16 - DPF: {205FF73B-CA67-11D5-99DD-444553540006} (CInstall Class) - http://www.errorguard.com/installation/Install.cab

errorguard 的声誉是半信半疑的 你自己决定要不要删了

qazz1947

谢谢！！！！！！！！！！！

austinlim

Download and run LSPFix
http://www.cexx.org/lspfix.zip
请先看更多资料
http://www.cexx.org/lspfix.htm

Select: (Advanced) "I know what I'm doing"
Select: "idmmbc.dll" (left pane).
Click the right arrow to bring it to REMOVE (right pane).
Then click the FINISH button. Restart your computer.

Open Windows Explorer, locate and delete the following:

c:\windows\system32\idmmbc.dll <--File only

kaisam

你可以是用 Microsoft Anti Spyware。

http://download.microsoft.com/do ... iSpywareInstall.exe