Adware.AllSum

SUMMARY

Behavior

Adware.AllSum is an adware program that displays advertisements on the compromised computer. It may also log browser activities.

Note: Detections prior to May 24th 2006 may detect this risk as Trojan.Ourxin.

Symptoms

Your Symantec product detects Adware.Allsum

Transmission

This security risk must be manually installed

Protection

• Initial Rapid Release version March 14, 2006
• Latest Rapid Release version June 25, 2008 revision 036
• Initial Daily Certified version March 14, 2006
• Latest Daily Certified version June 25, 2008 revision 048
• Initial Weekly Certified release date March 15, 2006

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

TECHNICAL DETAILS

When Adware.Allsum is installed, it performs the following actions:

1. Creates some of the following files:
   
   
   • %System%\wmpdrm.dll
   • %System%\msibm\cfsbho.dll
   • %System%\msibm\cfsupd.dll
   • %System%\msibm\cfsys.dll
   • %System%\msibm\linbak.dll
   • %System%\msibm\lowlvl.dll
   • %System%\msicn\msibm.dll
   • %System%\msicn\plugins\as.dll
   • %System%\msicn\plugins\bm.dll
   • %System%\msicn\plugins\bse.dll
   • %System%\msicn\plugins\lup.dll
   • %System%\spoolsv\spoolsv.exe
   • %Temp%\secp.exe
     
     Note:
     
   • %System% is a variable that refers to the System folder. By default this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).
   • %Temp% is a variable that refers to the Windows temporary folder. By default, this is C:\Windows\TEMP (Windows 95/98/Me/XP) or C:\WINNT\Temp (Windows NT/2000).
     
     
2. Creates the following nonmalicious files:
   
   
   • %System%\msibm\cfs7zd.DLL
   • %System%\msibm\Uninstall.exe
   • %System%\msicn\ube.exe
     
     
3. May also create the following files, which are not executable:
   
   
   • %System%\32F77AC0.094
   • %System%\guid.vxd
   • %System%\ibmuuid_.dll
   • %System%\ibmvdr_.dll
   • %System%\msuuid_.dll
   • %System%\msvendr_.dll
   • %System%\msibm\cfscfg.7z
   • %System%\msibm\cfscfg.ini
   • %System%\msibm\intro.htm
   • %System%\msibm\intro.tpl
   • %System%\msibm\post.htm
   • %System%\msibm\post.tpl
   • %System%\msicn\ava.vxd
   • %System%\msicn\fin.vxd
   • %System%\msicn\ksite.cpz
   • %System%\msicn\ksite.vxd
   • %System%\msicn\ksites.cpz
   • %System%\msicn\ksites.vxd
   • %System%\msicn\lup.cpz
   • %System%\msicn\lup.vxd
   • %System%\msicn\md5.cpz
   • %System%\msicn\md5.vxd
   • %System%\msicn\safep.cpz
   • %System%\msicn\safep.vxd
   • %System%\msicn\scan.cpz
   • %System%\msicn\scan.vxd
   • %System%\msicn\skey.cpz
   • %System%\msicn\skey.vxd
   • %System%\msicn\ssite.cpz
   • %System%\msicn\ssite.vxd
   • %System%\msicn\wpage.cpz
   • %System%\msicn\wpage.vxd
     
     
4. Adds one of the following registry entries:
   
   "mscfs" = "RUNDLL32 C:\WINDOWS\system32\msibm\cfsys.dll,cfs"
   "spoolsv" = "C:\WINDOWS\system32\spoolsv\spoolsv.exe -printer"
   
   to the registry entry:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
   
   so that it runs every time Windows starts.
   
   
5. Attempts to register an uninstaller with some of the following parameters:
   
   Display name: Win Survey
   Uninstall string: %System%\msibm\Uninstall.exe
   
   or
   
   Display name: WinDirected 2.0
   Uninstall string: %System%\spoolsv\spoolsv.exe -uninst
   
   by creating and populating one of the following registry subkeys:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\cfs
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\wd2
   
   
6. May also create and populate the following registry subkeys:
   
   HKEY_CLASSES_ROOT\AppID\cfsbho.DLL
   HKEY_CLASSES_ROOT\AppID\wmpdrm.DLL
   HKEY_CLASSES_ROOT\AppID\{B46D3E4A-3F54-497D-AFFD-464AAE8098EF}
   HKEY_CLASSES_ROOT\CLSID\{0E674588-66B7-4E19-9D0E-2053B800F69F}
   HKEY_CLASSES_ROOT\CLSID\{8A4280AD-9B37-4922-A51D-73F3C3A32AF7}
   HKEY_CLASSES_ROOT\Interface\{4A775183-9517-420E-9A13-D3DA47BB8A84}
   HKEY_CLASSES_ROOT\Interface\{CE82AFC1-5E4B-4F19-A3E3-4FFF55F3D279}
   HKEY_CLASSES_ROOT\TypeLib\{8B200623-3FC5-4493-8B49-DC2AD4830AF4}
   HKEY_CLASSES_ROOT\TypeLib\{B46D3E4A-3F54-497D-AFFD-464AAE8098EF}
   HKEY_CLASSES_ROOT\cfsbho.BHelper
   HKEY_CLASSES_ROOT\cfsbho.BHelper.1
   HKEY_CLASSES_ROOT\wmpdrm.cfsbho
   HKEY_CLASSES_ROOT\wmpdrm.cfsbho.1
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Brow
   ser Helper Objects\{0E674588-66B7-4E19-9D0E-2053B800F69F}
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Brow
   ser Helper Objects\{8A4280AD-9B37-4922-A51D-73F3C3A32AF7}
   HKEY_CURRENT_USER\Software\mscfs
   HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{0E6
   74588-66B7-4E19-9D0E-2053B800F69F}
   HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{8A4
   280AD-9B37-4922-A51D-73F3C3A32AF7}
   
   
7. May also modify the following registry entry:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID\[DEFAULT VALUE] = "wmpdrm"
   
   
8. May execute one of its components by executing the following command:
   
   rundll32 %System%\msibm\cfsys.dll,cfs
   
   The risk then monitors the above process.
   
   If this process is ended, the risk may attempt to inject the components cfsys.dll and cfsupd.dll into one of the following processes:
   
   abc.exe
   alg.exe
   AnyQ.exe
   Aol.exe
   Apache.exe
   ApacheMonitor.exe
   baiduX.exe
   BitComet.exe
   BitSpirit.exe
   BitTorrent.exe
   btogether.exe
   conf.exe
   ctfmon.exe
   CuteFTP.exe
   Dudu.exe
   emule.exe
   eph.exe
   explorer.exe
   firefox.exe
   FlashFXP.exe
   flashget.exe
   foobar2000.exe
   foxmail.exe
   gaim.exe
   ICQLite.exe
   iexplore.exe
   IMU.exe
   irc.exe
   KAV32.exe
   kugoo.exe
   kuro.exe
   kvolself.exe
   KVSrvXP.exe
   LeapFTP.exe
   LuComServer_2_5.exe
   Maxthon.exe
   mdm.exe
   MeteorNetTV-hj.exe
   mirc.exe
   msimn.exe
   msnmsgr.exe
   myie.exe
   myie2.exe
   MyIM.exe
   netants.exe
   netscape.exe
   NetTransport.exe
   nettv.exe
   opera.exe
   OUTLOOK.exe
   p2psrv.exe
   Poco2004.exe
   Popo.exe
   qq.exe
   QQexternal.exe
   QQMail.exe
   QQMusic.exe
   RavCopy.exe
   realplay.exe
   realsched.exe
   rtxc.exe
   rundll32.exe
   Sentinel.exe
   ServUTray.exe
   Skype.exe
   starTV.exe
   stv.exe
   svchost.exe
   Thunder.exe
   tm.exe
   TMShell.exe
   TTplayer.exe
   TTraveler.exe
   UC.exe
   vpp.exe
   winamp.exe
   wmplayer.exe
   YPager.exe
   
   
9. May create backups of its files in the following folders:
   
   
   %System%\1116\ntjdo
   %System%\1116\tqppmtw
   %System%\1116\tzt
   %System%\bakcfs
   
   The risk may subsequently restore deleted files from these folders.
   
   
10. May contact the following Web sites to update its configuration and download components:
    www.ourxin.com
    liveupdate.ourxin.com
    
    
11. May also create the following files:
    
    %System%\mscache\[NUMBER].cpz
    %System%\mscache\navang.cpz
    
    These files contain advertisments downloaded from the following Web site:
    xz.kjxs.com
    
    
12. Displays advertisements based on the user's Web surfing activity.
    
    
13. May also log browser activities and send any data it gathers to the controlling Web site.

REMOVAL

The following instructions pertain to all Symantec antivirus products that support security risk detection.

1. Uninstall the security risk.
2. Update the definitions
3. Run a full system scan.
4. Delete any values added to the registry.
   

For specific details on each of these steps, read the following instructions.


1. To uninstall the security risk
This security risk includes an uninstallation applet. In order to uninstall this security risk, complete the following instructions:

1. Click Start > Settings > Control Panel or Start > Control Panel (this varies with the operating system).
   
   
2. In the Control Panel window, double-click Add/Remove Programs.
   
   Windows Me only: If you do not see the Add/Remove Programs icon, click ...view all Control Panel options.
   
   
3. Click WinDirected 2.0.
   
   Note: You may need to use the scroll bar to view the whole list.
   
   
4. Click Add/Remove, Change/Remove, or Remove (this varies with the operating system). Follow the prompts.
   
   Note: After running the Add/Remove programs applet, all the files may have been removed. You will want to run a full system scan to ensure that this is the case. However, it is possible that no files will be detected after using Add/Remove programs.
   
   

2. To update the definitions
To obtain the most recent definitions, start your Symantec program and run LiveUpdate.


3. To run the scan

1. Start your Symantec antivirus program, and then run a full system scan.
   
2. If any files are detected, and depending on which software version you are using, you may see one or more of the following options:
   
   Note: This applies only to versions of Norton AntiVirus that support security risk detection. If you are running a version of Symantec AntiVirus Corporate Edition that supports security risk detection, and security risk detection has been enabled, you will only see a message box that gives the results of the scan. If you have questions in this situation, contact your network administrator.
   
   • Exclude (Not recommended): If you click this button, it will set the risk so that it is no longer detectable. That is, the antivirus program will keep the security risk on your computer and will no longer detect it to remove from your computer.
     
     
   • Ignore or Skip: This option tells the scanner to ignore the risk for this scan only. It will be detected again the next time that you run a scan.
     
     
   • Cancel: This option is new to Norton Antivirus 2005. It is used when Norton Antivirus 2005 has determined that it cannot delete a security risk. This Cancel option tells the scanner to ignore the risk for this scan only, and thus, the risk will be detected again the next time that you run a scan.
     
     To actually delete the security risk:
     • Click its file name (under the Filename column).
     • In the Item Information box that displays, write down the full path and file name.
     • Then use Windows Explorer to locate and delete the file.
       
       
   • Delete: This option will attempt to delete the detected files. In some cases, the scanner will not be able to do this.
     • If you see a message, "Delete Failed" (or similar message), manually delete the file.
     • Click the file name of the risk that is under the Filename column.
     • In the Item Information box that displays, write down the full path and file name.
     • Then use Windows Explorer to locate and delete the file.
       
       

Important: If you are unable to start your Symantec antivirus product or the product reports that it cannot delete a detected file, you may need to stop the risk from running in order to remove it. To do this, run the scan in Safe mode. For instructions, read the document, How to start the computer in Safe Mode. Once you have restarted in Safe mode, run the scan again.

After the files are deleted, restart the computer in Normal mode and proceed with the next section.

Warning messages may be displayed when the computer is restarted, since the risk may not be fully removed at this point. You can ignore these messages and click OK. These messages will not appear when the computer is restarted after the removal instructions have been fully completed. The messages displayed may be similar to the following:

Title: [FILE PATH]
Message body: Windows cannot find [FILE NAME]. Make sure you typed the name correctly, and then try again. To search for a file, click the Start button, and then click Search.

4. To delete the value from the registry
Important: Symantec strongly recommends that you back up the registry before making any changes to it. Incorrect changes to the registry can result in permanent data loss or corrupted files. Modify the specified subkeys only. Read the document: How to make a backup of the Windows registry.

1. Click Start > Run.
2. Type regedit
   
   Then click OK.
   
   Note: If the registry editor fails to open the risk may have modified the registry to prevent access to the registry editor. Security Response has developed a tool to resolve this problem. Download and run this tool, and then continue with the removal.
   
   
3. Navigate to the subkey:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
   
   
4. In the right pane, delete one of the value:
   
   "mscfs" = "RUNDLL32 C:\WINDOWS\system32\msibm\cfsys.dll,cfs"
   "spoolsv" = "C:\WINDOWS\system32\spoolsv\spoolsv.exe -printer"
   
   
5. Navigate to and delete the following subkeys:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\cfs
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\wd2
   HKEY_CLASSES_ROOT\AppID\cfsbho.DLL
   HKEY_CLASSES_ROOT\AppID\wmpdrm.DLL
   HKEY_CLASSES_ROOT\AppID\{B46D3E4A-3F54-497D-AFFD-464AAE8098EF}
   HKEY_CLASSES_ROOT\CLSID\{0E674588-66B7-4E19-9D0E-2053B800F69F}
   HKEY_CLASSES_ROOT\CLSID\{8A4280AD-9B37-4922-A51D-73F3C3A32AF7}
   HKEY_CLASSES_ROOT\Interface\{4A775183-9517-420E-9A13-D3DA47BB8A84}
   HKEY_CLASSES_ROOT\Interface\{CE82AFC1-5E4B-4F19-A3E3-4FFF55F3D279}
   HKEY_CLASSES_ROOT\TypeLib\{8B200623-3FC5-4493-8B49-DC2AD4830AF4}
   HKEY_CLASSES_ROOT\TypeLib\{B46D3E4A-3F54-497D-AFFD-464AAE8098EF}
   HKEY_CLASSES_ROOT\cfsbho.BHelper
   HKEY_CLASSES_ROOT\cfsbho.BHelper.1
   HKEY_CLASSES_ROOT\wmpdrm.cfsbho
   HKEY_CLASSES_ROOT\wmpdrm.cfsbho.1
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Brow
   ser Helper Objects\{0E674588-66B7-4E19-9D0E-2053B800F69F}
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Brow
   ser Helper Objects\{8A4280AD-9B37-4922-A51D-73F3C3A32AF7}
   HKEY_CURRENT_USER\Software\mscfs
   HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{0E6
   74588-66B7-4E19-9D0E-2053B800F69F}
   HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{8A4
   280AD-9B37-4922-A51D-73F3C3A32AF7}
   
   
6. Revert the following registry entry:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID\[DEFAULT VALUE] = "wmpdrm"
   
   
7. Exit the Registry Editor.