<杀毒大赛>手工剿灭灰鸽子 - 打造国内专业网络安全动画技术交流站点---黑客动画$黑客教程$安全培训$黑软下载$黑客动画教程$黑客软件$黑客工具$菜鸟入门

灰鸽子是国内非常流行的一种木马，其版本和变种随着时间推移也出现过很多种。
所谓木马就是由灰鸽子软件生成的一个客户端，一旦进入“宿主”的计算机，
就能够窃取“肉鸡”的信息，包括键盘记录，文件互传等等。

因此灰鸽子一种比较恶意的病毒。
而对于木马的客户端，则是其实现功能的核心。
如何发现并删除客户端及其生成的文件成为了剿灭灰鸽子的重中之重。

本文以灰鸽子2007的变种为例，介绍手工发现并剿灭灰鸽子的过程，样本是从论坛样本区下载的。

1.病毒本体文件: qq.exe 图标却是word文档的图标显然是伪装

a.jpg (4.72 KB)

2008-10-6 22:17

2. 开SReng扫描时，提示入口点错误，如下图：

c.jpg (14.25 KB)

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3.修复入口点的错误，然后继续扫描，得到日志如附件。

d.jpg (59.41 KB)

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4.用IceSword中的文件查看System32文件夹，发现病毒释放的两个文件。
但是直接在Windows中的system32窗口中无法找到这两个文件。

e.jpg (54.93 KB)

2008-10-6 22:17

5.其实，是ati2sgag.exe这个进程使得这两个文件隐藏了，先结束这个进程。

b.jpg (17.13 KB)

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6. 于是，在System32文件夹下就能发现这两个文件了。把他们删除。

f.jpg (49.07 KB)

2008-10-6 22:17

SREng 生成的日志如下：

引用:

复制内容到剪贴板
代码:
2008-10-06,17:19:12 System Repair Engineer 2.6.12.1018 Smallfrogs (http://www.KZTechs.com) Windows XP Professional Service Pack 2 (Build 2600)  [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run] <ctfmon.exe><C:\WINDOWS\system32\ctfmon.exe> [(Verified)Microsoft Windows Publisher] <KavPFW><"C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\KPFW32.EXE" -startup> [(Verified)KINGSOFT CORPORATION] [HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows] <load><> [N/A] [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run] <IMJPMIG8.1><"C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32> [(Verified)Microsoft Windows Publisher] <PHIME2002ASync><C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /SYNC> [(Verified)Microsoft Windows Publisher] <PHIME2002A><C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /IMEName> [(Verified)Microsoft Windows Publisher] <VMUserServices><C:\Program Files\Virtual Machine Additions\vmusrvc.exe> [(Verified)Microsoft Corporation] <KavStart><"C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\KAVStart.exe" -startup> [(Verified)KINGSOFT CORPORATION] [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] <shell><Explorer.exe> [(Verified)Microsoft Windows Publisher] <Userinit><C:\WINDOWS\system32\userinit.exe> [(Verified)Microsoft Windows Publisher] [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Windows] <AppInit_DLLs><> [N/A] [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] <UIHost><logonui.exe> [(Verified)Microsoft Windows Publisher] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\>{26923b43-4d38-484f-9b9e-de460746276c}] <Internet Explorer><%systemroot%\system32\shmgrate.exe OCInstallUserConfigIE> [File is missing] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\>{881dd1c5-3dcf-431b-b061-f3f88e8be88a}] <Outlook Express><%systemroot%\system32\shmgrate.exe OCInstallUserConfigOE> [File is missing] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{2C7339CF-2B09-4501-B3F3-F3508C9228ED}] <Themes Setup><%SystemRoot%\system32\regsvr32.exe /s /n /i:/UserInstall %SystemRoot%\system32\themeui.dll> [File is missing] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{44BBA840-CC51-11CF-AAFA-00AA00B6015C}] <Microsoft Outlook Express 6><"%ProgramFiles%\Outlook Express\setup50.exe" /APP:OE /CALLER:WINNT /user /install> [File is missing] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{44BBA842-CC51-11CF-AAFA-00AA00B6015B}] <NetMeeting 3.01><rundll32.exe advpack.dll,LaunchINFSection C:\WINDOWS\INF\msnetmtg.inf,NetMtg.Install.PerUser.NT> [(Verified)Microsoft Windows Publisher] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{5945c046-1e7d-11d1-bc44-00c04fd912be}] <Windows Messenger 4.7><rundll32.exe advpack.dll,LaunchINFSection C:\WINDOWS\INF\msmsgs.inf,BLC.QuietInstall.PerUser> [(Verified)Microsoft Windows Publisher] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{6BF52A52-394A-11d3-B153-00C04F79FAA6}] <Microsoft Windows Media Player><rundll32.exe advpack.dll,LaunchINFSection C:\WINDOWS\INF\wmp.inf,PerUserStub> [(Verified)Microsoft Windows Publisher] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{7790769C-0471-11d2-AF11-00C04FA35D02}] <Address Book 6><"%ProgramFiles%\Outlook Express\setup50.exe" /APP:WAB /CALLER:WINNT /user /install> [File is missing] ================================== N/A ================================== [Human Interface Device Access / HidServ][Stopped/Disabled] <C:\WINDOWS\System32\svchost.exe -k netsvcs-->%SystemRoot%\System32\hidserv.dll><N/A> [Kingsoft Internet Security Common Service / KISSvc][Running/Auto Start] <C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\KISSvc.EXE><Kingsoft Corporation> [Kingsoft Personal Firewall Service / KPfwSvc][Running/Auto Start] <"C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\KPfwSvc.EXE"><Kingsoft Corporation> [Kingsoft Antivirus KWatch Service / KWatchSvc][Running/Auto Start] <"C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\KWatch.EXE"><Kingsoft Corporation> ================================== [Creative SB16/AWE32/AWE64 Driver (WDM) / ctlsb16][Running/Manual Start] <system32\drivers\ctlsb16.sys><Copyright (C) Creative Technology Ltd. 1994-2001> [DC21x4 Based Network Adapter Driver / DC21x4][Running/Manual Start] <system32\DRIVERS\dc21x4.sys><Intel Corporation.> [KAVBase / KAVBase][Running/Auto Start] <\??\C:\WINDOWS\system32\Drivers\KAVBase.sys><Kingsoft Corporation> [KAVBootC / KAVBootC][Running/Boot Start] <\SystemRoot\system32\Drivers\KAVBootC.sys><Kingsoft Corporation> [KNetWch / KNetWch][Running/System Start] <\??\C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\KNetWch.SYS><Kingsoft Corporation> [KWatch3 / KWatch3][Running/Auto Start] <\??\C:\WINDOWS\system32\Drivers\KWatch3.sys><Kingsoft Corporation> [ / Ptilink][Running/Manual Start] <system32\DRIVERS\ptilink.sys><Parallel Technologies, Inc.> [Secdrv / Secdrv][Stopped/Manual Start] <system32\DRIVERS\secdrv.sys><N/A> ================================== [kingsoft browser shield] {D963BE1A-6B35-47DB-B002-49FAE71D85CC} <C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\KASBrowserShield.DLL, (Signed) Kingsoft Corporation> [IEBuddyExtControl Class] {3AECD3C1-7085-4731-96DC-47B6CF7EF749} <C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\IEBuddyExt.DLL, (Signed) Kingsoft Corporation> [Messenger] {FB5F1910-F110-11d2-BB9E-00C04F795683} <C:\Program Files\Messenger\msmsgs.exe, (Signed) Microsoft Corporation> [IEBuddyExtControl Class] {3AECD3C1-7085-4731-96DC-47B6CF7EF749} <C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\IEBuddyExt.DLL, (Signed) Kingsoft Corporation> [kingsoft browser shield] {D963BE1A-6B35-47DB-B002-49FAE71D85CC} <C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\KASBrowserShield.DLL, (Signed) Kingsoft Corporation> [] {FB5F1910-F110-11D2-BB9E-00C04F795683} <, > ================================== [PID: 420 / SYSTEM][\SystemRoot\System32\smss.exe] [Microsoft Corporation, 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)] [PID: 476 / SYSTEM][\??\C:\WINDOWS\system32\csrss.exe] [Microsoft Corporation, 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)] [PID: 500 / SYSTEM][\??\C:\WINDOWS\system32\winlogon.exe] [Microsoft Corporation, 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)] [C:\WINDOWS\system32\msacm32.drv] [Microsoft Corporation, 5.1.2600.0 (xpclient.010817-1148)] [PID: 544 / SYSTEM][C:\WINDOWS\system32\services.exe] [Microsoft Corporation, 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)] [PID: 556 / SYSTEM][C:\WINDOWS\system32\lsass.exe] [Microsoft Corporation, 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)] [PID: 708 / SYSTEM][C:\WINDOWS\system32\svchost.exe] [Microsoft Corporation, 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)] [PID: 768 / NETWORK SERVICE][C:\WINDOWS\system32\svchost.exe] [Microsoft Corporation, 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)] [PID: 832 / SYSTEM][C:\WINDOWS\System32\svchost.exe] [Microsoft Corporation, 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)] [PID: 880 / NETWORK SERVICE][C:\WINDOWS\system32\svchost.exe] [Microsoft Corporation, 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)] [PID: 1012 / LOCAL SERVICE][C:\WINDOWS\system32\svchost.exe] [Microsoft Corporation, 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)] [PID: 1240 / SYSTEM][C:\WINDOWS\system32\spoolsv.exe] [Microsoft Corporation, 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)] [PID: 1568 / SYSTEM][C:\Program Files\Virtual Machine Additions\vmsrvc.exe] [Microsoft Corporation, 013.803] [C:\WINDOWS\system32\vmsrvc.dll] [Microsoft Corporation, 013.803] [PID: 1632 / soft1][C:\WINDOWS\Explorer.EXE] [Microsoft Corporation, 6.00.2900.2180 (xpsp_sp2_rtm.040803-2158)] [C:\WINDOWS\system32\msacm32.drv] [Microsoft Corporation, 5.1.2600.0 (xpclient.010817-1148)] [C:\Program Files\Virtual Machine Additions\mrxvpcnp.dll] [Microsoft Corporation, 013.803] [C:\WINDOWS\system32\vmsrvc.dll] [Microsoft Corporation, 013.803] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\KMailOEBand.DLL] [Kingsoft Corporation, 2008,04,24,7] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\kis.dll] [Kingsoft Corporation, 2008,04,24,7] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\MFC80U.DLL] [Microsoft Corporation, 8.00.50727.762] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\MSVCR80.dll] [Microsoft Corporation, 8.00.50727.762] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\MSVCP80.dll] [Microsoft Corporation, 8.00.50727.762] [C:\Program Files\WinRAR\rarext.dll] [N/A, ] [C:\Program Files\Virtual Machine Additions\VPCShExG.dll] [Microsoft Corporation, 013.803] [C:\WINDOWS\system32\Ati2edxx.dll] [N/A, ] [PID: 1736 / SYSTEM][C:\Program Files\Virtual Machine Additions\vpcmap.exe] [Microsoft Corporation, 013.803] [C:\WINDOWS\system32\vmsrvc.dll] [Microsoft Corporation, 013.803] [PID: 856 / soft1][C:\Program Files\Virtual Machine Additions\vmusrvc.exe] [Microsoft Corporation, 013.803] [C:\WINDOWS\system32\vmsrvc.dll] [Microsoft Corporation, 013.803] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\KMailOEBand.DLL] [Kingsoft Corporation, 2008,04,24,7] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\kis.dll] [Kingsoft Corporation, 2008,04,24,7] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\MFC80U.DLL] [Microsoft Corporation, 8.00.50727.762] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\MSVCR80.dll] [Microsoft Corporation, 8.00.50727.762] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\MSVCP80.dll] [Microsoft Corporation, 8.00.50727.762] [C:\WINDOWS\system32\Ati2edxx.dll] [N/A, ] [PID: 932 / soft1][C:\WINDOWS\system32\wscntfy.exe] [Microsoft Corporation, 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)] [C:\WINDOWS\system32\Ati2edxx.dll] [N/A, ] [PID: 1028 / soft1][C:\WINDOWS\system32\ctfmon.exe] [Microsoft Corporation, 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)] [C:\WINDOWS\system32\Ati2edxx.dll] [N/A, ] [PID: 1288 / LOCAL SERVICE][C:\WINDOWS\System32\alg.exe] [Microsoft Corporation, 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)] [PID: 2360 / soft1][C:\WINDOWS\system32\ati2sgag.exe] [, 1.0.0.0] [C:\WINDOWS\system32\Ati2edxx.dll] [N/A, ] [PID: 2388 / soft1][C:\Documents and Settings\soft1\\sreng2\SREngLdr.EXE] [Smallfrogs Studio, 2.6.12.1018] [PID: 2396 / soft1][C:\Documents and Settings\soft1\\sreng2\SRE16939380.EXE] [Smallfrogs Studio, 2.6.12.1018] [C:\Documents and Settings\soft1\\sreng2\Lang\1028.DLL] [System Repair Engineer, 2.6.12.1018] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\KMailOEBand.DLL] [Kingsoft Corporation, 2008,04,24,7] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\kis.dll] [Kingsoft Corporation, 2008,04,24,7] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\MFC80U.DLL] [Microsoft Corporation, 8.00.50727.762] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\MSVCR80.dll] [Microsoft Corporation, 8.00.50727.762] [C:\Program Files\Kingsoft\Kingsoft Internet Security V9.0\MSVCP80.dll] [Microsoft Corporation, 8.00.50727.762] [C:\WINDOWS\system32\Ati2edxx.dll] [N/A, ] [C:\Documents and Settings\soft1\\sreng2\Upload\3rdUpd.DLL] [Smallfrogs Studio, 2, 1, 0, 15] [C:\Documents and Settings\soft1\\sreng2\Plugins\NTFSTREAM.SRE] [Smallfrogs Studio, 1, 0, 0, 5] ================================== .TXT OK. [%SystemRoot%\system32\NOTEPAD.EXE %1] .EXE OK. ["%1" %*] .COM OK. ["%1" %*] .PIF OK. ["%1" %*] .REG OK. [regedit.exe "%1"] .BAT OK. ["%1" %*] .SCR OK. ["%1" /S] .CHM Error. ["hh.exe" %1] .HLP Error. [winhlp32.exe %1] .INI OK. [%SystemRoot%\System32\NOTEPAD.EXE %1] .INF OK. [%SystemRoot%\System32\NOTEPAD.EXE %1] .VBS OK. [%SystemRoot%\System32\WScript.exe "%1" %*] .JS OK. [%SystemRoot%\System32\WScript.exe "%1" %*] .LNK OK. [{00021401-0000-0000-C000-000000000046}] ================================== Winsock N/A ================================== Autorun.inf N/A ================================== HOSTS 127.0.0.1 localhost ==================================  SeDebugPrivilege [PID = 2360, C:\WINDOWS\SYSTEM32\ATI2SGAG.EXE]  SeLoadDriverPrivilege [PID = 2360, C:\WINDOWS\SYSTEM32\ATI2SGAG.EXE]  SeDebugPrivilege [PID = 2388, C:\DOCUMENTS AND SETTINGS\soft1\\SRENG2\SRENGLDR.EXE]  SeLoadDriverPrivilege [PID = 2388, C:\DOCUMENTS AND SETTINGS\soft1\\SRENG2\SRENGLDR.EXE] ================================== API HOOK N/A ================================== N/A ==================================

从上面的报告可以看出，这个木马非常“智能”，并没有生成明显可见的服务，
而是释放两个假冒ATI显卡驱动的exe文档进入内存。监听用户的信息并与外界连接。