邪恶的ghost.pif又出新变种（兼答**door0.dll木马群的查杀）

ghost.pif之前有分析过，现在又发现出现了新变种。具体分析如下:
File: Ghost.pif
Size: 22575 bytes
MD5: 550AD3A14D272B9D4BA7A019F714BFF5
SHA1: 69AC64704EA1FAF21F31B97473B3F57CCFCCA88F
CRC32: B61F22F8

运行后生成如下文件：
%ProgramFiles%\Common Files\goskdl.dll（随机6位字母文件名）
%ProgramFiles%\Internet Explorer\rksldk.bak（随机6位字母文件名）
%ProgramFiles%\Internet Explorer\rksldk.dll（随机6位字母文件名）
%ProgramFiles%\Internet Explorer\rksldk.ebk（随机6位字母文件名）

注册表操作：
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellExecuteHooks下面添加
<{DC7596CB-D6CC-DCA3-DE52-DEEA63F6C61D}><%ProgramFiles%\Internet Explorer\rksldk.dll> [Microsoft Corporation]
达到开机启动目的
HKLM\SOFTWARE\Classes\CLSID\下面添加
{C1626E66-C26B-C628-E1DF-CDACCFA26EE1} 指向%ProgramFiles%\Common Files\goskdl.dll通过IE浏览器钩子加载

查询以下注册表项目的某些键值来获取相关安全软件的安装目录，在获得安装目录下生成以系统文件名"MFC42.DLL"命名的文件夹
SOFTWARE\\rising\\Rav
SOFTWARE\\Kingsoft\\AntiVirus
SOFTWARE\\JiangMin
SOFTWARE\KasperskyLab\InstalledProducts\Kaspersky Anti-Virus Personal
SOFTWARE\\KasperskyLab\\SetupFolders
SOFTWARE\Network Associates\TVD\Shared Components\Framework
SOFTWARE\Eset\Nod\CurrentVersion\Info
SOFTWARE\\Symantec\\SharedUsage
SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\360safe.exe

并在MFC42.DLL文件夹下生成歧义文件夹I1!O!0..\导致windows下无法删除该文件夹
检测新移动硬件插入 如果插入了新硬件 那么在其根目录下生成ghost.pif和autorun.inf
控制explorer连接网络下载木马
读取hxxp://www.xxxxx.org/Data/oK.txt的下载列表
下载hxxp://ora.xxxxx.com/Sex/1.exe
hxxp://ora.xxxxx.com/Sex/2.exe
hxxp://ora.xxxxx.com/Sex/3.exe
hxxp://ora.xxxxx.com/Sex/4.exe
hxxp://ora.xxxxx.com/Sex/5.exe
hxxp://orb.xxxxx.com/Sex/6.exe
hxxp://orb.xxxxx.com/Sex/7.exe
hxxp://orb.xxxxx.com/Sex/8.exe
hxxp://orb.xxxxx.com/Sex/9.exe
hxxp://orb.xxxxx.com/Sex/10.exe
hxxp://orb.xxxxx.com/Sex/11.exe
hxxp://orb.xxxxx.com/Sex/12.exe
hxxp://orb.xxxxx.com/Sex/13.exe
hxxp://orb.xxxxx.com/Sex/14.exe
hxxp://orb.xxxxx.com/Sex/15.exe
hxxp://orb.xxxxx.com/Sex/16.exe
hxxp://ora.xxxxx.com/Sex/M1.exe
hxxp://ora.xxxxx.com/Sex/oKoK.exe
到%Temp%文件夹
木马植入完毕后在%System32%文件夹下生成很多wldoor0.dll类似的**door0.dll的文件
并且插入Explorer.exe和由explorer.exe启动的进程

sreng日志体现如下
注册表
启动项目
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellExecuteHooks]
<{DC7596CB-D6CC-DCA3-DE52-DEEA63F6C61D}><C:\Program Files\Internet Explorer\rksldk.dll> [Microsoft Corporation]
<{E03C23BD-35B7-49C2-BBCA-6D8CEC2507E3}><C:\WINDOWS\system32\wldoor0.dll> []
<{074616A6-5ADC-4A3F-B252-E1D605228B5C}><C:\WINDOWS\system32\wmdoor0.dll> []
<{6826A3DB-EA8E-4E67-880D-53D04C7C0BD8}><C:\WINDOWS\system32\qjdoor0.dll> []
<{D8CC4845-441C-44F8-9053-28F2EF67655B}><C:\WINDOWS\system32\dadoor0.dll> []
<{4E3FBFA4-F1CC-4B66-B333-B9F0FF4B4748}><C:\WINDOWS\system32\mydoor0.dll> []
<{ABD0935D-B35A-47BD-BA9A-81678DDE74DD}><C:\WINDOWS\system32\qhdoor0.dll> []
<{781FBCC1-99C7-4AE0-95F7-66EA49E86DD7}><C:\WINDOWS\system32\zxdoor0.dll> []
<{08E909A4-B236-48DD-8BCC-90A604B93E68}><C:\WINDOWS\system32\tldoor0.dll> []
<{68F7767A-090C-4BBF-A015-720ACC6706E2}><C:\WINDOWS\system32\wddoor0.dll> []
<{EDFF29C1-5A70-4460-AC1D-16DCB4B672F0}><C:\WINDOWS\system32\rxdoor0.dll> []
<{BD9B003B-0BE6-4528-A9D9-B8DBACAC6B9B}><C:\WINDOWS\system32\fydoor0.dll> []
<{A3C95A74-638D-4C6B-A856-4B27664A7F47}><C:\WINDOWS\system32\wgdoor0.dll> []
<{E952B8F8-D91A-4EDD-851C-EE1A0F944469}><C:\WINDOWS\system32\ztdoor0.dll> []
<{71046DD5-E136-4C4B-A6B5-91C30CB15291}><C:\WINDOWS\system32\jtdoor0.dll> []
<{5731EA1D-6AAF-4DE9-BDDA-7B390A75B286}><C:\WINDOWS\system32\wodoor0.dll> []
<{3422FB0F-95EB-458A-8B56-39552017A4EF}><C:\WINDOWS\system32\mhdoor0.dll> []

浏览器加载项
{C1626E66-C26B-C628-E1DF-CDACCFA26EE1} <C:\Program Files\Common Files\goskdl.dll, Microsoft Corporation>

正在运行的进程
[PID: 1748 / Administrator][C:\WINDOWS\Explorer.EXE] [Microsoft Corporation, 6.00.2900.2180 (xpsp_sp2_rtm.040803-2158)]
[C:\WINDOWS\system32\wldoor0.dll] [N/A, ]
[C:\Program Files\Internet Explorer\rksldk.dll] [Microsoft Corporation, 1. 0. 0. 1]
[C:\WINDOWS\system32\wmdoor0.dll] [N/A, ]
[C:\WINDOWS\system32\qjdoor0.dll] [N/A, ]
[C:\WINDOWS\system32\dadoor0.dll] [N/A, ]
[C:\WINDOWS\system32\mydoor0.dll] [N/A, ]
[C:\WINDOWS\system32\qhdoor0.dll] [N/A, ]
[C:\WINDOWS\system32\zxdoor0.dll] [N/A, ]
[C:\WINDOWS\system32\tldoor0.dll] [N/A, ]
[C:\WINDOWS\system32\wddoor0.dll] [N/A, ]
[C:\WINDOWS\system32\rxdoor0.dll] [N/A, ]
[C:\WINDOWS\system32\fydoor0.dll] [N/A, ]
[C:\WINDOWS\system32\wgdoor0.dll] [N/A, ]
[C:\WINDOWS\system32\ztdoor0.dll] [N/A, ]
[C:\WINDOWS\system32\jtdoor0.dll] [N/A, ]
[C:\WINDOWS\system32\wodoor0.dll] [N/A, ]
[C:\WINDOWS\system32\mhdoor0.dll] [N/A, ]
[C:\Program Files\Common Files\goskdl.dll] [Microsoft Corporation, 1. 0. 0. 1]

解决办法：
一、清除ghost.pif产生的病毒文件

重启计算机 进入
安全模式下(开机后不断 按F8键 然后出来一个高级菜单 选择第一项 安全模式 进入系统)
双击我的电脑，工具，文件夹选项，查看，单击选取"显示隐藏文件或文件夹" 并清除"隐藏受保护的操作系统文件（推荐）"前面的钩。在提示确定更改时，单击
“是” 然后确定
打开任务管理器－进程－结束explorer进程 此时桌面消失

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