我在任务管理器看到这个，而且防火墙提示这个程序老是想访问Internet.不知道是不是病毒?

应该是G_Server2.0.exe吧。
是灰鸽子木马。
先用hijackthis查找到鸽子的服务，用icesword把服务停止；
然后到安全模式下，打开icesword，查找下面4个文件并删除：
x.exe, x.dll, xkey.dll, x_hook.dll (x为鸽子主程序文件名)
这四个文件因为文件名开头相同，所以一般在一起，不难删除。
最后查找注册表里的“G_Servcer2.0”，删除。

【回复“小商小贩”的帖子】
可能是灰鸽子，建议您下载并使用HijackThis1.99.1

HijackThis下载地址请参考：
【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 17:21:58, on 2005-11-5
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\KV2005\KVMonXP_4.kxp
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\PROGRA~1\KV2005\KVSrvXP.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\system32\ZONELABS\vsmon.exe
C:\Program Files\KV2005\TrojDie_2.kxp
C:\Program Files\KV2005\KRegEx.exe
C:\WINDOWS\System32\DllHost.exe
C:\WINDOWS\System32\svchost.exe
D:\hijackthis\248783200522382732\HijackThis.exe

O2 - BHO: BrowseHelper Class - {80BF4637-D65B-43F3-BB60-C5DD3D5FB7B9} - C:\Program Files\KV2005\KvShell_1.dll
O2 - BHO: (no name) - {A5366673-E8CA-11D3-9CD9-0090271D075B} - (no file)
O3 - Toolbar: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - C:\PROGRA~1\FLASHGET\fgiebar.dll
O3 - Toolbar: 江民杀毒工具栏 - {B5A34A93-D538-43A7-8371-864CB6148D12} - C:\Program Files\KV2005\KvShell_1.dll
O3 - Toolbar: 金山快译(&K) - {6C3797D2-3FEF-4cd4-B654-D3AE55B4128C} - C:\PROGRA~1\Kingsoft\FastAIT\IEBand.dll
O4 - HKLM\..\Run: [IMJPMIG8.1] ; "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [PHIME2002ASync] C:\WINDOWS\System32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] ; nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] ; RUNDLL32.EXE C:\WINDOWS\System32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [KvMonXP] "C:\Program Files\KV2005\KVMonXP_4.kxp" /auto
O4 - HKLM\..\Run: [Super Rabbit SRRestore] C:\Program Files\Super Rabbit\MagicSet\srrest.exe /autosave
O4 - HKLM\..\Run: [Zone Labs Client] C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O8 - Extra context menu item: 使用网际快车下载 - C:\Program Files\FlashGet\jc_link.htm
O8 - Extra context menu item: 使用网际快车下载全部链接 - C:\Program Files\FlashGet\jc_all.htm
O8 - Extra context menu item: 添加到QQ自定义面板 - C:\Program Files\Tencent\QQ\AddPanel.htm
O8 - Extra context menu item: 添加到QQ表情 - C:\Program Files\Tencent\QQ\AddEmotion.htm
O8 - Extra context menu item: 用QQ彩信发送该图片 - C:\Program Files\Tencent\QQ\SendMMS.htm
O10 - Unknown file in Winsock LSP: c:\windows\system32\kvwspxp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\kvwspxp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\kvwspxp.dll
O16 - DPF: {59CCB4A0-727D-11CF-AC36-00AA00A47DD2} (Timer Object) - http://movie.yzvod.com/player/tools/ietimer.cab
O23 - Service: Gray_Pigeon_Server2.0 (GrayPigeonServer2.0) - Unknown owner - C:\WINDOWS\G_Server2.0.exe
O23 - Service: KVSrvXP - JiangMin New Tech Ltd. - C:\PROGRA~1\KV2005\KVSrvXP.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZONELABS\vsmon.exe

估计是下载带来的，痛苦啊！

是不是删O23 - Service: Gray_Pigeon_Server2.0 (GrayPigeonServer2.0) - Unknown owner - C:\WINDOWS\G_Server2.0.exe

【回复“小商小贩”的帖子】
此项是鸽子.
参考:http://forum.ikaka.com/topic.asp?board=28&artid=5666824

Logfile of HijackThis v1.99.1
Scan saved at 17:57:28, on 2005-11-5
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

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\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\KV2005\KVMonXP_4.kxp
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\PROGRA~1\KV2005\KVSrvXP.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\system32\ZONELABS\vsmon.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\KV2005\TrojDie_2.kxp
C:\Program Files\KV2005\KRegEx.exe
C:\WINDOWS\System32\DllHost.exe
C:\WINDOWS\System32\svchost.exe
D:\hijackthis\248783200522382732\HijackThis.exe

O2 - BHO: BrowseHelper Class - {80BF4637-D65B-43F3-BB60-C5DD3D5FB7B9} - C:\Program Files\KV2005\KvShell_1.dll
O2 - BHO: (no name) - {A5366673-E8CA-11D3-9CD9-0090271D075B} - (no file)
O3 - Toolbar: FlashGet Bar - {E0E899AB-F487-11D5-8D29-0050BA6940E3} - C:\PROGRA~1\FLASHGET\fgiebar.dll
O3 - Toolbar: 江民杀毒工具栏 - {B5A34A93-D538-43A7-8371-864CB6148D12} - C:\Program Files\KV2005\KvShell_1.dll
O3 - Toolbar: 金山快译(&K) - {6C3797D2-3FEF-4cd4-B654-D3AE55B4128C} - C:\PROGRA~1\Kingsoft\FastAIT\IEBand.dll
O4 - HKLM\..\Run: [IMJPMIG8.1] ; "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [PHIME2002ASync] C:\WINDOWS\System32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] ; nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] ; RUNDLL32.EXE C:\WINDOWS\System32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [KvMonXP] "C:\Program Files\KV2005\KVMonXP_4.kxp" /auto
O4 - HKLM\..\Run: [Super Rabbit SRRestore] C:\Program Files\Super Rabbit\MagicSet\srrest.exe /autosave
O4 - HKLM\..\Run: [Zone Labs Client] C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O8 - Extra context menu item: 使用网际快车下载 - C:\Program Files\FlashGet\jc_link.htm
O8 - Extra context menu item: 使用网际快车下载全部链接 - C:\Program Files\FlashGet\jc_all.htm
O8 - Extra context menu item: 添加到QQ自定义面板 - C:\Program Files\Tencent\QQ\AddPanel.htm
O8 - Extra context menu item: 添加到QQ表情 - C:\Program Files\Tencent\QQ\AddEmotion.htm
O8 - Extra context menu item: 用QQ彩信发送该图片 - C:\Program Files\Tencent\QQ\SendMMS.htm
O10 - Unknown file in Winsock LSP: c:\windows\system32\kvwspxp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\kvwspxp.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\kvwspxp.dll
O16 - DPF: {59CCB4A0-727D-11CF-AC36-00AA00A47DD2} (Timer Object) - http://movie.yzvod.com/player/tools/ietimer.cab
O23 - Service: KVSrvXP - JiangMin New Tech Ltd. - C:\PROGRA~1\KV2005\KVSrvXP.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZONELABS\vsmon.exe

请版主看看有没有别的问题了

【回复“小商小贩”的帖子】
日志以无异常项目。