在安全模式下用瑞星最新版查,没有发现病毒,可是重启,瑞星监控会提示在c:\windows\sysemt32\sortcnls.nls发现病毒，病毒名称为Torjan.DL.Agent.dym,杀毒结果为文件被删除。等下次再开机时，瑞星监控又会有相同的提示。

请问：这是一种什么病毒？我应该怎么样把它彻底杀掉？

你下载用hijackthis1.99.1扫个log上来，方便大家分析、解决问题！1。下载HijackThis

HijackThis1.99.1可以到本版（反浏览器劫持版）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

中下载

日志如下,请帮忙分析
Logfile of HijackThis v1.99.1
Scan saved at 15:34:28 上午, on 2005-12-3
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\RAV\Ravmond.exe
C:\PROGRAM FILES\RISING\RAV\RavStub.exe
c:\program files\rising\rfw\rfwsrv.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
c:\program files\rising\rfw\RfwMain.exe
C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
C:\PROGRA~1\RISING\RAV\RAVMON.EXE
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\system32\RunDll32.exe
C:\WINDOWS\system32\ctfmon.exe
C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
C:\Program Files\Internet Explorer\iexplore.exe
E:\248783200522382732\HijackThis.exe

O2 - BHO: IDDTInitObj Class - {15DDE989-CD45-4561-BF99-D22C0D5C2B74} - C:\WINDOWS\Downlo~1\ddtinit.dll
O3 - Toolbar: (no name) - {F60C7D81-8471-4D40-AAFE-56D318F34C2D} - (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: [RfwMain] "C:\Program Files\Rising\Rfw\rfwmain.exe" -Startup
O4 - HKLM\..\Run: [RavTimer] C:\PROGRA~1\RISING\RAV\RAVTIMER.EXE
O4 - HKLM\..\Run: [RavMon] C:\PROGRA~1\RISING\RAV\RAVMON.EXE -SYSTEM
O4 - HKLM\..\Run: [CnsMin] Rundll32.exe C:\WINDOWS\DOWNLO~1\CnsMin.dll,Rundll32
O4 - HKLM\..\Run: [helper.dll] C:\WINDOWS\system32\rundll32.exe C:\PROGRA~1\3721\helper.dll,Rundll32
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [IMSCMig] C:\PROGRA~1\COMMON~1\MICROS~1\IME\IMSC40A\IMSCMIG.EXE /Preload
O4 - HKLM\..\Run: [NMGameX_AutoRun] C:\WINDOWS\system32\Rundll32.exe NMGameX.dll,LiveProcess /aa
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O8 - Extra context menu item: !搜一搜 - res://C:\WINDOWS\DOWNLO~1\CnsMinEx.dll/1003
O8 - Extra context menu item: 使用新浪下载助手下载 - C:\WINDOWS\Downlo~1\sinadl.htm
O8 - Extra context menu item: 导出到 Microsoft Office Excel(&X) - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: 手机短信 - {00000000-0000-0001-0001-596BAEDD1289} - http://sms.3721.com/ie/index.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: 寻宝乐趣多 - {59BC54A2-56B3-44a0-93E5-432D58746E26} - http://hot.3721.com/rd/shop_btn.htm (file missing)
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: 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: (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)
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)
O11 - Options group: [!CNS]  网络实名
O14 - IERESET.INF: START_PAGE_URL=about:blank
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1125884477553
O17 - HKLM\System\CCS\Services\Tcpip\..\{3C1F8864-BD9E-4367-8DF6-20CD8B4660E2}: NameServer = 202.99.160.68
O17 - HKLM\System\CS1\Services\Tcpip\..\{3C1F8864-BD9E-4367-8DF6-20CD8B4660E2}: NameServer = 202.99.160.68
O23 - Service: EnvSec - Unknown owner - C:\WINDOWS\system32\envsec.exe
O23 - Service: Rising Personal Firewall Service (RfwService) - Beijing Rising Technology Corporation Limited - c:\program files\rising\rfw\rfwsrv.exe
O23 - Service: Rising Process Communication Center (RsCCenter) - rising - C:\PROGRAM FILES\RISING\RAV\CCENTER.EXE
O23 - Service: RsRavMon Service (RsRavMon) - Beijing Rising Technology Co., Ltd. - C:\PROGRAM FILES\RISING\RAV\Ravmond.exe

没有人回答了，我也想看看是怎么回事

O23 - Service: EnvSec - Unknown owner - C:\WINDOWS\system32\envsec.exe灰鸽子，查杀灰鸽子的方法在这里有解答！http://forum.ikaka.com/topic.asp?board=28&artid=6372316          http://forum.ikaka.com/topic.asp?board=28&artid=7107792O23 - NT

我用HijackThis把可疑日志修复了一下,NTRSER.DAT,ntrser.dat.LOG,ntrser.ini不能修复,再开机瑞星还是提示有病毒,杀毒结果是删除文件。
没办法了，我把系统回复了一下，问题搞定了。