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| 关键词： nbsp Downloaded Program WINDIR 865735 Files System 病毒 CodeConvert 32 |
安天实验室 CERT组分析 一、病毒标签： 病毒名称： Email-Worm.Win32.Bagle.gb 病毒类型： 蠕虫类 文件 MD5： 702F26300BB856FC5A27DD47090237BB 公开范围： 完全公开 危害等级： 4 文件长度： 185,912 字节 感染系统： windows 98以上版本 开发工具： Microsoft Visual C++ 6.0 加壳类型： 无 二、病毒描述： 该病毒为邮件蠕虫，可通过邮件自行传播。病毒运行后，复制衍生病毒文件系统目录下，并删除自身。修改注册表，添加启动项，以达到随机启动的目的。将IeBar1.dll插入到EXPLORER.EXE进程中，主动连接网络，下载其它病毒文件到本机运行。 三、行为分析： 1、病毒运行后释放文件： %Program Files%\DeskAdTop\sInfo.ini %System32%\eeeeee.ini %System32%\eeeeee1.ini %System32%\IeBar1.dll 2、添加启动项，以达到随机启动的目的： HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\IEBarUp 键值:字符串:"RunDll32"C:\WINDOWS\system32\IeBar1.dll",Run%SystemRoot%\Driver Cache" 3、将IeBar1.dll插入到EXPLORER.EXE进程中 4、主动连接网络，下载相关病毒文件信息: 地址列表： 218.12.196.143 218.12.196.140. 222.35.73.17 202.108.32.181 下载及释放文件列表： %Program Files%\DeskAdTop\sInfo.ini %WINDIR%\Downloaded Program Files\865735\adkwlib1.dat %WINDIR%\Downloaded Program Files\865735\adkwlib1.dat.1 %WINDIR%\Downloaded Program Files\865735\adkwlib1.dat.tmp %WINDIR%\Downloaded Program Files\865735\adrec.dat %WINDIR%\Downloaded Program Files\865735\allverx.dat %WINDIR%\Downloaded Program Files\865735\bk\skin1.GIF %WINDIR%\Downloaded Program Files\865735\bk\skin2.GIF %WINDIR%\Downloaded Program Files\865735\CodeConvert\regCodeMap.ini %WINDIR%\Downloaded Program Files\865735\CodeConvert\ZSB52UC.TXT %WINDIR%\Downloaded Program Files\865735\CodeConvert\ZSGB2UC.TXT %WINDIR%\Downloaded Program Files\865735\CodeConvert\ZSGBK2UC.TXT %WINDIR%\Downloaded Program Files\865735\CodeConvert\ZSUC2B5.TXT %WINDIR%\Downloaded Program Files\865735\CodeConvert\ZSUC2GB.TXT %WINDIR%\Downloaded Program Files\865735\CodeConvert\ZSUC2GBK.TXT %WINDIR%\Downloaded Program Files\865735\config\MidSegData0.idx %WINDIR%\Downloaded Program Files\865735\config\MidSegData1.idx %WINDIR%\Downloaded Program Files\865735\config\ZSDict_Word.dat %WINDIR%\Downloaded Program Files\865735\hissys.dat %WINDIR%\Downloaded Program Files\865735\IP.dat %WINDIR%\Downloaded Program Files\865735\NTDLL32.dll %WINDIR%\Downloaded Program Files\865735\SHLWAPI32.DLL %WINDIR%\Downloaded Program Files\865735\sInfo.ini %WINDIR%\Downloaded Program Files\865735\uISGRLFile.dat %WINDIR%\Downloaded Program Files\865735\wpp_entity.txt %WINDIR%\Downloaded Program Files\865735\wpp_keyword.txt %WINDIR%\Downloaded Program Files\865735\_uninstall %System32%\CharSet.dll %System32%\CreateDomTree.dll %System32%\drivers\mspcidrv.sys %System32%\IEHelper.dll %System32%\internet.exe %System32%\NTDLL32.dll %System32%\WebPageParser.dll %WINDIR%\Temp\FDC15X.tmp 5、该病毒执行后开始搜索计算机中E-mail地址，搜索到后自动发送邮件，在邮件附件中包含病毒体 注释： %Windir% WINDODWS所在目录 %DriveLetter% 逻辑驱动器根目录 %ProgramFiles% 系统程序默认安装目录 %HomeDrive% 当前启动系统所在分区 %Documents and Settings% 当前用户文档根目录 %Temp% 当前用户TEMP缓存变量；路径为： %Documents and Settings%\当前用户\Local Settings\Temp %System32% 是一个可变路径； 病毒通过查询操作系统来决定当前System32文件夹的位置； Windows2000/NT中默认的安装路径是 C:\Winnt\System32； Windows95/98/Me中默认的安装路径是 C:\Windows\System； WindowsXP中默认的安装路径是 C:\Windows\System32。 四、 清除方案： 1、使用安天木马防线可彻底清除此病毒(推荐)，请到安天网站下载：www.antiy.com 。 2、手工清除请按照行为分析删除对应文件，恢复相关系统设置。推荐使用ATool（安天安全管理工具），ATool下载地址: www.antiy.com或http://www.antiy.com/download/index.htm 。 (1) 使用安天木马防线或ATool中的“进程管理”关闭病毒进程 (2) 强行删除病毒释放与下载文件 %Program Files%\DeskAdTop\sInfo.ini %System32%\eeeeee.ini %System32%\eeeeee1.ini %System32%\IeBar1.dll %Program Files%\DeskAdTop\sInfo.ini %WINDIR%\Downloaded Program Files\865735\adkwlib1.dat %WINDIR%\Downloaded Program Files\865735\adkwlib1.dat.1 %WINDIR%\Downloaded Program Files\865735\adkwlib1.dat.tmp %WINDIR%\Downloaded Program Files\865735\adrec.dat %WINDIR%\Downloaded Program Files\865735\allverx.dat %WINDIR%\Downloaded Program Files\865735\bk\skin1.GIF %WINDIR%\Downloaded Program Files\865735\bk\skin2.GIF %WINDIR%\Downloaded Program Files\865735\CodeConvert\regCodeMap.ini %WINDIR%\Downloaded Program Files\865735\CodeConvert\ZSB52UC.TXT %WINDIR%\Downloaded Program Files\865735\CodeConvert\ZSGB2UC.TXT %WINDIR%\Downloaded Program Files\865735\CodeConvert\ZSGBK2UC.TXT %WINDIR%\Downloaded Program Files\865735\CodeConvert\ZSUC2B5.TXT %WINDIR%\Downloaded Program Files\865735\CodeConvert\ZSUC2GB.TXT %WINDIR%\Downloaded Program Files\865735\CodeConvert\ZSUC2GBK.TXT %WINDIR%\Downloaded Program Files\865735\config\MidSegData0.idx %WINDIR%\Downloaded Program Files\865735\config\MidSegData1.idx %WINDIR%\Downloaded Program Files\865735\config\ZSDict_Word.dat %WINDIR%\Downloaded Program Files\865735\hissys.dat %WINDIR%\Downloaded Program Files\865735\IP.dat %WINDIR%\Downloaded Program Files\865735\NTDLL32.dll %WINDIR%\Downloaded Program Files\865735\SHLWAPI32.DLL %WINDIR%\Downloaded Program Files\865735\sInfo.ini %WINDIR%\Downloaded Program Files\865735\uISGRLFile.dat %WINDIR%\Downloaded Program Files\865735\wpp_entity.txt %WINDIR%\Downloaded Program Files\865735\wpp_keyword.txt %WINDIR%\Downloaded Program Files\865735\_uninstall %System32%\CharSet.dll %System32%\CreateDomTree.dll %System32%\drivers\mspcidrv.sys %System32%\IEHelper.dll %System32%\internet.exe %System32%\NTDLL32.dll %System32%\WebPageParser.dll %WINDIR%\Temp\FDC15X.tmp (3) 恢复病毒修改的注册表项目，删除病毒添加的注册表项 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\IEBarUp 键值:字符串:"RunDll32"C:\WINDOWS\system32\IeBar1.dll",Run%SystemRoot%\Driver Cache" |
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