Full description

病毒:	Worm/Warezov.DLL.C
发现日期:	13/12/2012
类型:	蠕虫
广泛传播:	是
病毒传播个案呈报：	低程度
感染/传播能力：	中等程度
破坏 / 损害程度：	低程度至中程度
静态文件:	是
文件大小:	153.128 字节
MD5 校检和:	6d5b6945f50dc801208525936d5c24b9
VDF 版本:	7.11.53.216 - 13 Aralık 2012 Perşembe
IVDF 版本:	7.11.53.216 - 13 Aralık 2012 Perşembe

况概描述 传播方法:
   • 电子邮件

别名:
   • Mcafee: W32/Stration@MM
   • Kaspersky: Email-Worm.Win32.Warezov.ab
   • TrendMicro: WORM_STRATION.BC
   • F-Secure: Email-Worm.Win32.Warezov.ab
   • Eset: Win32/Stration.AR

平台/操作系统:
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003

副作用:
   • 阻止对安全网站的访问
   • 植入恶意文件
   • 使用自置的电子邮件引擎
   • 降低系统安全设置
   • 注册表修改

执行完毕之后会显示以下信息:

文件它将本身复制到以下位置:
   • %WINDIR%\tsrv.exe

创建以下文件:

– 包含搜集的电子邮件地址的文件:
   • %WINDIR%\tsrv.wax

– %HOME%\Desktop\%两位数的随机字符串%.tmp 这是一个无恶意的文本文件，包含以下内容:
   • %随机字符串%

– %SYSDIR%\msji449c14b7.dll 进一步的调查表明，此文件是恶意软件。检测为: Worm/Stration

– %SYSDIR%\cmut449c14b7.dll 进一步的调查表明，此文件是恶意软件。检测为: Worm/Warezov.AB

– %SYSDIR%\hpzl449c14b7.exe 进一步的调查表明，此文件是恶意软件。检测为: Worm/Warezov.AB.2

– %WINDIR%\tsrv.dll 进一步的调查表明，此文件是恶意软件。检测为: Worm/Warezov.AB.1

注册表会添加以下注册表项，以便在系统重新引导后运行进程:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "tsrv"="%WINDIR%\tsrv.exe s"

会更改以下注册表项:

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows]
   旧值:
   • "AppInit_DLLs"=""
   新值:
   • "AppInit_DLLs"=" msji449c14b7.dll"

电子邮件它包含集成的 SMTP 引擎，用于发送电子邮件。将与目标服务器建立直接连接。下面说明了它的特征:

发件人:
发件地址是仿冒的。
机器生成的地址。请不要认为向您发送此电子邮件是出于发件人的本意。他可能并不知道计算机已被感染，甚至可能根本没有被感染。此外，您可能还会收到一些退回的电子邮件，通知您已被感染。情况也可能不是这样。

收件人:
– 在系统上的特定文件中找到的电子邮件地址。
– 从 WAB (Windows 通讯簿) 搜集到的电子邮件地址
– 程序生成的地址

电子邮件设计:

发件人: sec@%收件人邮址域名%
主题: Mail server report.
正文:
   • Mail server report.

     Our firewall determined the e-mails containing worm copies are being sent from your computer.
     Nowadays it happens from many computers, because this is a new virus type (Network Worms).
     Using the new bug in the Windows, these viruses infect the computer unnoticeably.
     After the penetrating into the computer the virus harvests all the e-mail addresses and sends the copies of itself to these e-mail
     addresses
     Please install updates for worm elimination and your computer restoring.

     Best regards,
     Customers support service
附件:
   • Update-KB%数字%-x86.exe

发件人: secur@%收件人邮址域名%
主题: Mail server report.
正文:
   • Mail server report.

     Our firewall determined the e-mails containing worm copies are being sent from your computer.
     Nowadays it happens from many computers, because this is a new virus type (Network Worms).
     Using the new bug in the Windows, these viruses infect the computer unnoticeably.
     After the penetrating into the computer the virus harvests all the e-mail addresses and sends the copies of itself to these e-mail
     addresses
     Please install updates for worm elimination and your computer restoring.

     Best regards,
     Customers support service
附件:
   • Update-KB%数字%-x86.exe

发件人: serv@%收件人邮址域名%
主题: Mail server report.
正文:
   • Mail server report.

     Our firewall determined the e-mails containing worm copies are being sent from your computer.
     Nowadays it happens from many computers, because this is a new virus type (Network Worms).
     Using the new bug in the Windows, these viruses infect the computer unnoticeably.
     After the penetrating into the computer the virus harvests all the e-mail addresses and sends the copies of itself to these e-mail
     addresses
     Please install updates for worm elimination and your computer restoring.

     Best regards,
     Customers support service
附件:
   • Update-KB%数字%-x86.exe

主题:
以下某项内容:
   • Error
   • Good day
   • hello
   • Mail Delivery System
   • Mail Transaction Failed
   • picture
   • Server Report
   • Status
   • test

正文:
电子邮件的正文如下所示:

   • Mail transaction failed. Partial message is available.

   • The message cannot be represented in 7-bit ASCII encoding
     and has been sent as a binary attachment

   • The message contains Unicode characters and has been sent
     as a binary attachment.

附件:
附件的文件名包含以下内容:

– 其开头是以下某项内容:
   • body
   • data
   • doc
   • docs
   • document
   • file
   • message
   • readme
   • test
   • text

    后跟以下某个假扩展名:
   • .elm
   • .msg
   • .dat
   • .txt
   • .log

    使用以下其中项文件扩展名　:
   • .bat
   • .exe
   • .scr
   • .cmd
   • .pif

该附件是恶意软件本身的副本。

电子邮件可能如下所示:

主机会按如下所述对主机文件进行修改:

– 这种情况下，不会修改已存在的项目。

– 阻挡以下域名的访问:
   • download.microsoft.com
   • go.microsoft.com
   • msdn.microsoft.com
   • office.microsoft.com
   • windowsupdate.microsoft.com
   • http://www.microsoft.com/downloads/Search.aspx?displaylang=en
   • avp.ru
   • www.avp.ru
   • http://avp.ru
   • http://www.avp.ru
   • kaspersky.ru
   • www.kaspersky.ru
   • http://kaspersky.ru
   • kaspersky.com
   • www.kaspersky.com
   • http://kaspersky.com
   • kaspersky-labs.com
   • www.kaspersky-labs.com
   • http://kaspersky-labs.com
   • avp.ru/download/
   • www.avp.ru/download/
   • http://www.avp.ru/download/
   • http://www.kaspersky.ru/updates/
   • http://www.kaspersky-labs.com/updates/
   • http://kaspersky.ru/updates/
   • http://kaspersky-labs.com/updates/
   • downloads1.kaspersky-labs.com
   • downloads2.kaspersky-labs.com
   • downloads3.kaspersky-labs.com
   • downloads4.kaspersky-labs.com
   • downloads5.kaspersky-labs.com
   • http://downloads1.kaspersky-labs.com
   • http://downloads2.kaspersky-labs.com
   • http://downloads3.kaspersky-labs.com
   • http://downloads4.kaspersky-labs.com
   • http://downloads5.kaspersky-labs.com
   • downloads1.kaspersky-labs.com/products/
   • downloads2.kaspersky-labs.com/products/
   • downloads3.kaspersky-labs.com/products/
   • downloads4.kaspersky-labs.com/products/
   • downloads5.kaspersky-labs.com/products/
   • http://downloads1.kaspersky-labs.com/products/
   • http://downloads2.kaspersky-labs.com/products/
   • http://downloads3.kaspersky-labs.com/products/
   • http://downloads4.kaspersky-labs.com/products/
   • http://downloads5.kaspersky-labs.com/products/
   • downloads1.kaspersky-labs.com/updates/
   • downloads2.kaspersky-labs.com/updates/
   • downloads3.kaspersky-labs.com/updates/
   • downloads4.kaspersky-labs.com/updates/
   • downloads5.kaspersky-labs.com/updates/
   • http://downloads1.kaspersky-labs.com/updates/
   • http://downloads2.kaspersky-labs.com/updates/
   • http://downloads3.kaspersky-labs.com/updates/
   • http://downloads4.kaspersky-labs.com/updates/
   • http://downloads5.kaspersky-labs.com/updates/
   • ftp://downloads1.kaspersky-labs.com
   • ftp://downloads2.kaspersky-labs.com
   • ftp://downloads3.kaspersky-labs.com
   • ftp://downloads4.kaspersky-labs.com
   • ftp://downloads5.kaspersky-labs.com
   • ftp://downloads1.kaspersky-labs.com/products/
   • ftp://downloads2.kaspersky-labs.com/products/
   • ftp://downloads3.kaspersky-labs.com/products/
   • ftp://downloads4.kaspersky-labs.com/products/
   • ftp://downloads5.kaspersky-labs.com/products/
   • ftp://downloads1.kaspersky-labs.com/updates/
   • ftp://downloads2.kaspersky-labs.com/updates/
   • ftp://downloads3.kaspersky-labs.com/updates/
   • ftp://downloads4.kaspersky-labs.com/updates/
   • ftp://downloads5.kaspersky-labs.com/updates/
   • http://updates.kaspersky-labs.com/updates/
   • http://updates1.kaspersky-labs.com/updates/
   • http://updates2.kaspersky-labs.com/updates/
   • http://updates3.kaspersky-labs.com/updates/
   • http://updates4.kaspersky-labs.com/updates/
   • ftp://updates.kaspersky-labs.com/updates/
   • ftp://updates1.kaspersky-labs.com/updates/
   • ftp://updates2.kaspersky-labs.com/updates/
   • ftp://updates3.kaspersky-labs.com/updates/
   • ftp://updates4.kaspersky-labs.com/updates/
   • viruslist.com
   • www.viruslist.com
   • http://viruslist.com
   • viruslist.ru
   • www.viruslist.ru
   • http://viruslist.ru
   • ftp://ftp.kasperskylab.ru/updates/
   • symantec.com
   • www.symantec.com
   • http://symantec.com
   • customer.symantec.com
   • http://customer.symantec.com
   • liveupdate.symantec.com
   • http://liveupdate.symantec.com
   • liveupdate.symantecliveupdate.com
   • http://liveupdate.symantecliveupdate.com
   • securityresponse.symantec.com
   • http://securityresponse.symantec.com
   • service1.symantec.com
   • http://service1.symantec.com
   • symantec.com/updates
   • http://symantec.com/updates
   • updates.symantec.com
   • http://updates.symantec.com
   • eset.com/
   • www.eset.com/
   • http://www.eset.com/
   • eset.com/products/index.php
   • www.eset.com/products/index.php
   • http://www.eset.com/products/index.php
   • eset.com/download/index.php
   • www.eset.com/download/index.php
   • http://www.eset.com/download/index.php
   • eset.com/joomla/
   • www.eset.com/joomla/
   • http://www.eset.com/joomla/
   • u3.eset.com/
   • http://u3.eset.com/
   • u4.eset.com/
   • http://u4.eset.com/
   • www.symantec.com/updates

修改后的hosts 文件将如下所示:

注入进程 – 它会将以下文件注入到进程中: tsrv.dll

进程名:
• %正在运行的所有进程%

文件详细信息 编程语言:
该恶意软件程序是用 MS Visual C++ 编写的。

运行时压缩程序:
为了提高检测难度以及减小文件，它已使用以下运行时压缩程序进行压缩:
• MEW

Description inserted by Adriana Popa on 26 Eylül 2006 Salı
Description updated by Adriana Popa on 26 Eylül 2006 Salı

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