Adware:W32/Boran

Classification

Spyware

Adware

W32

-

Summary

This program delivers advertising content to the user. It is usually annoying but harmless, unless it is combined with spyware or trackware.

Removal

Automatic action

Based on the settings of your F-Secure security product, it may block the file from running, move it to the quarantine where it cannot spread or cause harm, or ask you to select an action.

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Technical Details

Adware:W32/Boran is an adware program that acts as a Browser Helper Object (BHO). While active, the program displays Chinese-language advertising contents.

Installation

Boran software is usually distributed bundled with other Chinese adware/spyware program, such as& MMSAssist, Webwork or Vision Communicate "Cai Xin Fa Song" (Pinyin).

Once downloaded onto the system, Boran software must be executed manually. Upon execution, it drops executable and configuration files at:

  • C:\Program Files\MMSAssist\mms.ini
  • C:\Program Files\MMSAssist\Mmsass~1.dll

It may also create one or more of the following files:

  • alsmt.exe
  • Albus.SYS
  • Albus.DAT

Some variants may drop multiple component files and configuration files using a different path name and file name, for example:

  • C:\Program Files\winp\actv.ini
  • C:\Program Files\winp\stdi.ini
  • C:\Program Files\winp\stdl.ini
  • C:\Program Files\winp\upilex.ini
  • C:\Program Files\winp\upme.ini
  • C:\Program Files\winp\code.dll
  • C:\Program Files\winp\play.dll
  • C:\Program Files\winp\snet.dll
  • C:\Program Files\winp\vote.dll
  • C:\Program Files\yrpt\cvtx.ini
  • C:\Program Files\yrpt\xqos.ini
  • C:\Program Files\yrpt\gzxb.ini
  • C:\Program Files\yrpt\tmko.ini
  • C:\Program Files\yrpt\ibzd.dll
  • C:\Program Files\yrpt\lecg.dll
  • C:\Program Files\yrpt\ngei.dll
  • C:\Program Files\yrpt\qjhl.dll
  • C:\Program Files\yrpt\exvz.dll

Activity

While active, the adware checks Internet availability by contacting:

  • active.borlander.com.cn.

It then downloads advertising contents from:

  • www.borlander.com.cn
  • www.borlander.cn.

And downloads configuration files and the latest cabinet files (CAB) by using the following URL pattern:

  • https://update.borlander.cn/[..]/mmsas.cab
  • https://update.borlander.cn/[..]/updateex.ini
  • https://update.borlander.cn/[..]/updvsnex.ini
  • https://www.borlander.cn/[..]/mms.ini

Registry

This adware installs as a service by adding the following registry subkey:

  • [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Security]
  • [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\[random name]] Type= Start= ErrorControl= ImagePath="C:\WINDOWS\System32\rundll32.exe [Path to the component DLL file],Service -s" DisplayName=[random name]

The ImagePath's value C:\WINDOWS\System32\rundll32.exe [Path to the component DLL file],Service -sindicates that the adware will be started automatically as a background process when Windows is started.

It may also create one or more of the following registery subkeys:

  • [HKEY_CLASSES_ROOT\MMSBho.MMSAssist]
  • [HKEY_CLASSES_ROOT\MMSBho.MMSAssist.1]
  • [HKEY_CLASSES_ROOT\MMSBho.MMSAssistMenu]
  • [HKEY_CLASSES_ROOT\MMSBho.MMSAssistMenu.1]
  • [HKEY_CLASSES_ROOT\CLSID\{29875208-C411-4BBC-A537-4928Ba1E784A}]
  • [HKEY_CLASSES_ROOT\CLSID\{41DDECD2-1991-48C2-92C5-3698F3A6C607}]
  • [HKEY_CLASSES_ROOT\CLSID\{6671A431-5C3D-463d-A7CF-5587F9B7E191}]
  • [HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\MenuExt\ >>Cai Xin Fa Song<<
  • [HKEY_LOCAL_MACHINE\Software\Classes\MMSBho.MMSAssist]
  • [HKEY_LOCAL_MACHINE\Software\Classes\MMSBho.MMSAssist.1]
  • [HKEY_LOCAL_MACHINE\Software\Classes\MMSBho.MMSAssistMenu]
  • [HKEY_LOCAL_MACHINE\Software\Classes\MMSBho.MMSAssistMenu.1]
  • [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Albus]
  • [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VxD\Albus]
  • [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VisionService]
  • [HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{29875208-C411-4BBC-A537-4928Ba1E784A}]
  • [HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{41DDECD2-1991-48C2-92C5-3698F3A6C607}]
  • [HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{6671A431-5C3D-463d-A7CF-5587F9B7E191}]
  • [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6671A431-5C3D-463d-A7CF-5587F9B7E191}]
  • [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall\MMSAssist]
  • [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall\Vision Communicate]
  • [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall\{0C5C8E9A-48BA-4d26-AA01-2E1D4DC14718}]

Date Created: 2009-03-17 11:25:11.0

Date Last Modified: 2009-03-23 08:12:43.0