Adware.Oemji

SUMMARY

Behavior

Adware.Oemji? is an adware program that redirects searches in Internet Explorer.

Symptoms

Your Symantec program detects Adware.Oemji.

Transmission

This security risk must be manually installed.

Protection

• Virus Definitions (LiveUpdate™ Daily) October 2, 2006
• Virus Definitions (LiveUpdate™ Weekly) October 4, 2006
• Virus Definitions (Intelligent Updater) October 2, 2006
• Virus Definitions (LiveUpdate™ Plus) October 2, 2006

TECHNICAL DETAILS

Once executed, Adware.Oemji performs the following actions:

1. Creates the following files:
   
   
   • %ProgramFiles%OemjiOemji.dll
   • %ProgramFiles%OemjiOemjiPS.dll
   • %ProgramFiles%OemjiOemjiShare.exe
   • %ProgramFiles%Oemjiomreg.dll
   • %ProgramFiles%OemjiRes_CS.dll
   • %ProgramFiles%OemjiRes_CT.dll
   • %ProgramFiles%OemjiRes_EN.dll
   • %ProgramFiles%OemjiRes_FR.dll
   • %ProgramFiles%OemjiRes_GM.dll
   • %ProgramFiles%OemjiRes_JP.dll
   • %ProgramFiles%OemjiRes_KO.dll
   • %ProgramFiles%OemjiRes_SP.dll
   • %ProgramFiles%OemjiSkinEngine.dll
   • %ProgramFiles%Oemjizlibwapi.dll
   • %ProgramFiles%Oemjiconfig.xml
   • %ProgramFiles%OemjiINSTALL.LOG
   • %ProgramFiles%OemjiOemji.ico
   • %ProgramFiles%Oemjioemjibar.zip
   • %ProgramFiles%Oemjieg.xml
   • %ProgramFiles%Oemjiegister.ini
   • %ProgramFiles%OemjiRegistrationDebug.LOG
   • %ProgramFiles%Oemjisearchhistory.xml
   • %ProgramFiles%OemjiUninstall.exe
   • %ProgramFiles%OemjiUNWISE.EXE
   • %Windir%Downloaded Program Filesoemji.inf
     
     Notes:
   • %ProgramFiles% is a variable that refers to the program files folder. By default, this is C:Program Files.
   • %Windir% is a variable that refers to the Windows installation folder. By default, this is C:Windows (Windows 95/98/Me/XP) or C:Winnt (Windows NT/2000).
     
     
2. Creates the following registry subkeys:
   
   HKEY_CLASSES_ROOTAppIDFileshare.EXE
   HKEY_ALL_USERSSoftwareMicrosoftWindowsCurrentVersionExtStats{000473CD-A3ED-4969-A063-2BBA07945441}
   HKEY_ALL_USERSSoftwareOemji
   HKEY_CLASSES_ROOTAppIDOemtecIESearch.DLL
   HKEY_CLASSES_ROOTAppID{47378083-F0CD-4B3A-81FA-CFBA119FADEA}
   HKEY_CLASSES_ROOTAppID{BCF4E62D-7613-4DBE-8CF3-8C84F0FC804C}
   HKEY_CLASSES_ROOTCLSID{000473CD-A3ED-4969-A063-2BBA07945441}
   HKEY_CLASSES_ROOTCLSID{010D59BA-65AA-417C-82E5-BCEF6379A953}
   HKEY_CLASSES_ROOTCLSID{057D7731-052B-4781-BB80-33A7723A1993}
   HKEY_CLASSES_ROOTCLSID{1E150B18-E746-4569-AF9F-C990AB3F1036}
   HKEY_CLASSES_ROOTCLSID{50ACEABC-B79A-40D9-A41E-D3A682E4DA2F}
   HKEY_CLASSES_ROOTCLSID{836BBDA6-A612-4B02-B5A7-BCF2AB076F74}
   HKEY_CLASSES_ROOTCLSID{83F6A8A8-0337-46e5-B1C0-42B291486CEC}
   HKEY_CLASSES_ROOTCLSID{C213D102-64FC-41b0-8C49-D2725D9786D9}
   HKEY_CLASSES_ROOTInterface{35C738CB-ABB1-41BE-8130-AB10B1B94138}
   HKEY_CLASSES_ROOTInterface{50ACEABC-B79A-40D9-A41E-D3A682E4DA2F}
   HKEY_CLASSES_ROOTInterface{5EC4D98F-CCF4-47B0-8C92-45B764A602A6}
   HKEY_CLASSES_ROOTInterface{65AA3C03-8203-48E4-BBD7-E25885E96732}
   HKEY_CLASSES_ROOTInterface{9E068552-08C9-4979-8D71-E9241B72EDEE}
   HKEY_CLASSES_ROOTInterface{D60A75DB-F3D2-4B60-82B9-ED600A18C564}
   HKEY_CLASSES_ROOTInterface{EEB701BE-4297-4A74-8761-A0346B5484B2}
   HKEY_CLASSES_ROOTOMReg.CDownloadProgressController.1
   HKEY_CLASSES_ROOTOMReg.CDownloadProgressController
   HKEY_CLASSES_ROOTOMReg.RegistrationObj.1
   HKEY_CLASSES_ROOTOMReg.RegistrationObj
   HKEY_CLASSES_ROOTOemtecIESearch.OemtecIESearchBho.1
   HKEY_CLASSES_ROOTOemtecIESearch.OemtecIESearchBho
   HKEY_CLASSES_ROOTTypeLib{0A6C2632-BB2D-4874-ADEC-F27716E787EF}
   HKEY_CLASSES_ROOTTypeLib{28F1514B-4996-48D0-A27F-728669D1513B}
   HKEY_CLASSES_ROOTTypeLib{767B6A03-50AB-4C9D-9EF7-8D7DB92A2396}
   HKEY_LOCAL_MACHINESOFTWAREMicrosoftCode Store DatabaseDistribution Units{9A91AF9E-E985-4586-89CC-C776DB86D97B}
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.CConfigurationEvent
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.CConfigurationEvent.1
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.HistoryEvent
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.HistoryEvent.1
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.PactecConfiguration
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.PactecConfiguration.1
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.SearchHistory
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.SearchHistory.1
   HKEY_LOCAL_MACHINESOFTWAREOemji Toolbar
   HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionUninstallOemji Toolbar
   
   
3. Adds the value:
   
   "{000473CD-A3ED-4969-A063-2BBA07945441}" = "OemtecIESearch.OemtecIESearchBho"
   
   to the registry subkey:
   
   HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorerBrowser Helper Objects
   
   
4. Adds the values:
   
   "Search Bar" = "[http://]www.oemji.com/side_se[REMOVED]"
   "Start Page" = "[http://]www.oemji.com"
   
   to the registry entry:
   
   HKEY_ALL_USERSSoftwareMicrosoftInternet ExplorerMain
   
   to redirect searches and the home page to oemji.com in Internet Explorer.
   
   
5. Adds the value:
   
   "SoftwareMicrosoftInternet ExplorerSearchURL" = "[http://]www.oemji.com/side_se[REMOVED]"
   
   to the registry entry:
   
   HKEY_ALL_USERSSoftwareMicrosoftInternet ExplorerSearchUrl
   
   to redirect searches to oemji.com in Internet Explorer.
   
   
6. Sets the value:
   
   "Enable Browser Extensions" = "yes"
   
   in the registry subkey:
   
   HKEY_ALL_USERSSoftwareMicrosoftInternet ExplorerMain
   
   which allows third-party Browser Extensions.
   
   
7. Adds the value:
   
   "{000473CD-A3ED-4969-A063-2BBA07945441}" = "OemtecIESearch.OemtecIESearchBho"
   
   to the registry subkey:
   
   HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorerBrowser Helper Objects
   
   
   
8. Adds the value:
   
   "Search Bar" = “[http://]www.oemji.com/side_search.html"
   "Start Page" = "[[http://]]www.oemji.com"
   
   to the registry subkey:
   
   HKEY_ALL_USERSSoftwareMicrosoftInternet ExplorerMain
   
   
9. Adds the value:
   
   "SearchURL" = "[http://]www.oemji.com/side_search.html"
   
   to the registry subkey:
   
   HKEY_ALL_USERSSoftwareMicrosoftInternet ExplorerSearchUrl"SoftwareMicrosoftInternet Explorer
   
   
10. Adds the value:
    
    "SearchAssistant" = "[http://]ie.search.msn.com/{SUB_RFC1766}/srchasst/srchasst.htm"
    "SearchAssistant" = "[http://]www.oemji.com/side_search.html"
    "CustomizeSearch" = "[http://]ie.search.msn.com/{SUB_RFC1766}/srchasst/srchcust.htm"
    "CustomizeSearch" = "[http://]www.oemji.com"
    
    to the registry subkey:
    
    HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerSearch
    
    
11. May also redirect 404 error messages to a Web site on the Oemji.com domain, which may prevent users from seeing these error messages.

REMOVAL

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

1. Update the definitions.
2. Run a full system scan.
3. Delete any values added to the registry.
4. Reset the Internet Explorer search page.
5. Reset the Internet Explorer home page.
   

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

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


2. 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.

3. 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 and delete the subkeys:
   
   HKEY_CLASSES_ROOTAppIDFileshare.EXE
   HKEY_ALL_USERSSoftwareMicrosoftWindowsCurrentVersionExtStats{000473CD-A3ED-4969-A063-2BBA07945441}
   HKEY_ALL_USERSSoftwareOemji
   HKEY_CLASSES_ROOTAppIDOemtecIESearch.DLL
   HKEY_CLASSES_ROOTAppID{47378083-F0CD-4B3A-81FA-CFBA119FADEA}
   HKEY_CLASSES_ROOTAppID{BCF4E62D-7613-4DBE-8CF3-8C84F0FC804C}
   HKEY_CLASSES_ROOTCLSID{000473CD-A3ED-4969-A063-2BBA07945441}
   HKEY_CLASSES_ROOTCLSID{010D59BA-65AA-417C-82E5-BCEF6379A953}
   HKEY_CLASSES_ROOTCLSID{057D7731-052B-4781-BB80-33A7723A1993}
   HKEY_CLASSES_ROOTCLSID{1E150B18-E746-4569-AF9F-C990AB3F1036}
   HKEY_CLASSES_ROOTCLSID{50ACEABC-B79A-40D9-A41E-D3A682E4DA2F}
   HKEY_CLASSES_ROOTCLSID{836BBDA6-A612-4B02-B5A7-BCF2AB076F74}
   HKEY_CLASSES_ROOTCLSID{83F6A8A8-0337-46e5-B1C0-42B291486CEC}
   HKEY_CLASSES_ROOTCLSID{C213D102-64FC-41b0-8C49-D2725D9786D9}
   HKEY_CLASSES_ROOTInterface{35C738CB-ABB1-41BE-8130-AB10B1B94138}
   HKEY_CLASSES_ROOTInterface{50ACEABC-B79A-40D9-A41E-D3A682E4DA2F}
   HKEY_CLASSES_ROOTInterface{5EC4D98F-CCF4-47B0-8C92-45B764A602A6}
   HKEY_CLASSES_ROOTInterface{65AA3C03-8203-48E4-BBD7-E25885E96732}
   HKEY_CLASSES_ROOTInterface{9E068552-08C9-4979-8D71-E9241B72EDEE}
   HKEY_CLASSES_ROOTInterface{D60A75DB-F3D2-4B60-82B9-ED600A18C564}
   HKEY_CLASSES_ROOTInterface{EEB701BE-4297-4A74-8761-A0346B5484B2}
   HKEY_CLASSES_ROOTOMReg.CDownloadProgressController.1
   HKEY_CLASSES_ROOTOMReg.CDownloadProgressController
   HKEY_CLASSES_ROOTOMReg.RegistrationObj.1
   HKEY_CLASSES_ROOTOMReg.RegistrationObj
   HKEY_CLASSES_ROOTOemtecIESearch.OemtecIESearchBho.1
   HKEY_CLASSES_ROOTOemtecIESearch.OemtecIESearchBho
   HKEY_CLASSES_ROOTTypeLib{0A6C2632-BB2D-4874-ADEC-F27716E787EF}
   HKEY_CLASSES_ROOTTypeLib{28F1514B-4996-48D0-A27F-728669D1513B}
   HKEY_CLASSES_ROOTTypeLib{767B6A03-50AB-4C9D-9EF7-8D7DB92A2396}
   HKEY_LOCAL_MACHINESOFTWAREMicrosoftCode Store DatabaseDistribution Units{9A91AF9E-E985-4586-89CC-C776DB86D97B}
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.CConfigurationEvent
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.CConfigurationEvent.1
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.HistoryEvent
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.HistoryEvent.1
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.PactecConfiguration
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.PactecConfiguration.1
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.SearchHistory
   HKEY_LOCAL_MACHINESOFTWAREClassesFileshare.SearchHistory.1
   HKEY_LOCAL_MACHINESOFTWAREOemji Toolbar
   HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionUninstallOemji Toolbar
   
   
4. Navigate to the subkey:
   
   HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorerBrowser Helper Objects
   
   In the right pane, delete the following value:
   
   "{000473CD-A3ED-4969-A063-2BBA07945441}” = "OemtecIESearch.OemtecIESearchBho"
   
   
5. Navigate to the subkey:
   
   HKEY_ALL_USERSSoftwareMicrosoftInternet ExplorerMain
   
   In the right pane, delete the following values:
   
   "Search Bar" = "[http://]www.oemji.com/side_se[REMOVED]"
   "Start Page = "[http://]www.oemji.com"
   
   
6. Navigate to the subkey:
   
   HKEY_ALL_USERSSoftwareMicrosoftInternet ExplorerSearchUrl
   
   In the right pane, delete the following value:
   
   "SoftwareMicrosoftInternet ExplorerSearchURL" = "[http://]www.oemji.com/side_se[REMOVED]"
   
   
7. Navigate to the subkey:
   
   HKEY_ALL_USERSSoftwareMicrosoftInternet ExplorerMain
   
   In the right pane, reset the following entry to its previous value:
   
   "Enable Browser Extensions" = "yes"
   
   
8. Navigate to the subkey:
   
   HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorerBrowser Helper Objects
   
   
9. In the right pane, delete the value:
   
   "{000473CD-A3ED-4969-A063-2BBA07945441}" = "OemtecIESearch.OemtecIESearchBho"
   
   
10. Navigate to the subkey:
    
    HKEY_ALL_USERSSoftwareMicrosoftInternet ExplorerMain
    
    
11. In the right pane, delete the value:
    
    "Search Bar" = “[http://]www.oemji.com/side_search.html"
    "Start Page" = "[http://]www.oemji.com"
    
    
12. Navigate to the subkey:
    
    HKEY_ALL_USERSSoftwareMicrosoftInternet ExplorerSearchUrl"SoftwareMicrosoftInternet Explorer
    
    
13. In the right pane, delete the value:
    
    "SearchURL" = "[http://]www.oemji.com/side_search.html"
    
    
14. Navigate to the subkey:
    
    HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerSearch
    
    
15. In the right pane, delete the value:
    
    "SearchAssistant" = "[http://]ie.search.msn.com/{SUB_RFC1766}/srchasst/srchasst.htm"
    "SearchAssistant" = "[http://]www.oemji.com/side_search.html"
    "CustomizeSearch" = "[http://]ie.search.msn.com/{SUB_RFC1766}/srchasst/srchcust.htm"
    "CustomizeSearch" = "[http://]www.oemji.com"
    
    
16. Exit the Registry Editor.

4. To reset the Internet Explorer search page
Follow the instructions for your version of Windows.

Windows 98/Me/2000

1. Start Microsoft Internet Explorer.
2. Click the Search button on the toolbar.
3. In the Search pane, click Customize.
4. Click Reset.
5. Click Autosearch Settings.
6. Select a search site from the drop-down list, and then click OK.
7. Click OK.

Windows XP
Because Windows XP is set by default to use animated characters in the search, how you do this can vary. Read all the instructions before you start.

1. Start Microsoft Internet Explorer.
2. Click the Search button on the toolbar.
3. Do one of the following:
   • If the pane that opens looks similar to the following picture, click the word Customize and proceed to step h:
     
     
     
     
     
   • If the pane that opens has the words "Search Companion" at the top, and the center looks similar to the following picture, click the Change preferences link and proceed with step d.
     
     
     
     
     
4. Click the Change Internet search behavior link.
5. Under "Internet Search Behavior," click With Classic Internet Search.
6. Click OK. Then close Internet Explorer. (Close the program for the change to take effect.)
7. Start Internet Explorer. When the search pane opens, it should look similar to the following picture:
   
   
   
   
   
   Click the word Customize, and then proceed with the next step.
   
   
8. In the Search pane, click Customize.
9. Click Reset.
10. Click Autosearch Settings.
11. Select a search site from the drop-down list, and then click OK.
12. Click OK.
13. Do one of the following:
    • If you were using (or want to continue using) the "Classic Internet Search" panel, stop here (or proceed with the next section).
    • If you want to go back to the "Search Companion" search (it usually has an animated character at the button), proceed with step n.
      
      
14. Click the word Customize again.
15. In the "Customize Search Settings" window, click Use Search Companion > OK.
16. Close Internet Explorer. The next time you open it, it will again use the Search Companion.

5. To reset the Internet Explorer home page

1. Start Microsoft Internet Explorer.
2. Connect to the Internet, and then go to the page that you want to set as your home page.
3. Click Tools > Internet Options.
4. In the Home page section of the General tab, click Use Current > OK.

For additional information, or if this procedure does not work, read the Microsoft Knowledge Base article: Home Page Setting Changes Unexpectedly, or You Cannot Change Your Home Page Setting, Article ID 320159.