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Adware.CommonName

Adware.CommonName

Updated:
February 13, 2007
Version:
4.0
Publisher:
CommonName
Risk Impact:
Medium
File Names:
Winnet.exe Comwiz.exe Cnbabe.dll Winik.sys
Systems Affected:
Windows

Behavior


Adware.CommonName is an adware program that displays advertisements based on keywords in search engines. This adware component works as a Browser Helper Object.

Symptoms


The files are detected as Adware.CommonName.

Behavior


This adware component must be manually installed or installed as a component of another program that you install.

Antivirus Protection Dates

  • Initial Rapid Release version October 02, 2014 revision 022
  • Latest Rapid Release version July 03, 2017 revision 025
  • Initial Daily Certified version August 18, 2003
  • Latest Daily Certified version July 04, 2017 revision 004
  • Initial Weekly Certified release date August 18, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

When Adware.CommonName is installed, it performs the following actions:
  1. Creates the following registry subkeys:

    HKEY_LOCAL_MACHINE\SOFTWARE\Classes
    \CLSID\{046D6EA4-15E3-4b27-8010-45BD78A9219E}
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes
    \CLSID\{5A5F9339-F6A5-4464-95E3-A00BCA6206E3}
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes
    \CLSID\{746CEE9E-7A1D-417f-9A35-804A0217268B}
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
    \{3C7624D1-C414-4D1B-8FE9-52FA0558FB62}
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
    \{C8FFABC6-B706-4278-9399-169DF9FBF37E}
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
    \{127ACE33-7EA8-45F0-8B55-EFE8B8068BEF}
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\INetKW.Browser
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\INetKW.Browser.1
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\INetKW.Handler
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\INetKW.Handler.1
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\INetKW.Helper
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\INetKW.Helper.1
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer
    \Browser Helper Objects\{046D6EA4-15E3-4b27-8010-45BD78A9219E}
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\inetmgr
    HKEY_LOCAL_MACHINE\SOFTWARE\Internet Keyword
    HKEY_LOCAL_MACHINE\SOFTWARE\[RANDOM NAME]\User
    HKEY_LOCAL_MACHINE\SOFTWARE\[RANDOM NAME]\App
    HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\[NAME SERVICE IS REGISTERED AS]
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\[NAME SERVICE IS REGISTERED AS]
    HKEY_USERS\S-1-5-21-1960408961-507921405-725345543-500\Software\Internet Keyword
    HKEY_USERS\S-1-5-21-1960408961-507921405-725345543-500\Software\[RANDOM NAME]\User
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall

    Note: The [RANDOM NAME] variable in this and subsequent steps refers to different random names, not the same randomly chosen name every time.

  2. Adds the values:

    "DisplayName" = "Internet Keyword"
    "UninstallString" = "C:\Program Files\Internet Keyword\unins.exe"

    to the registry subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Internet Keyword

  3. Creates some of the following files and folders:

    • C:\Program Files\CommonName
    • C:\Program Files\Internet Keyword
    • C:\Program Files\[RANDOM NAME]\babe.dat
    • C:\Program Files\[RANDOM NAME]\cnml.exe
    • C:\Program Files\[RANDOM NAME]\dfs.dat
    • C:\Program Files\[RANDOM NAME]\exit.dat
    • C:\Program Files\[RANDOM NAME]\[RANDOM NAME].dll
    • C:\Program Files\[RANDOM NAME]\[RANDOM NAME].exe
    • C:\Program Files\[RANDOM NAME]\[RANDOM NAME].exe
    • C:\Program Files\[RANDOM NAME]\[RANDOM NAME].exe
    • C:\Program Files\[RANDOM NAME]\obj.dat
    • C:\Program Files\[RANDOM NAME]\profile.dat
    • C:\Program Files\[RANDOM NAME]\url1.dat
    • C:\Program Files\[RANDOM NAME]\url2.dat
    • C:\Program Files\[RANDOM NAME]\url8.dat
    • C:\Program Files\[RANDOM NAME]\url9.dat
    • C:\Program Files\[RANDOM NAME]\urlx.dat
    • C:\Program Files\[RANDOM NAME]\WINIK.SYS
    • C:\Program Files\[RANDOM NAME]\[RANDOM NAME].dll
    • C:\Program Files\[RANDOM NAME]\[RANDOM NAME].exe
    • C:\WINDOWS\system32\[RANDOM NAME].ini
    • C:\WINDOWS\system32\[RANDOM NAME].ini
    • C:\WINDOWS\system32\[RANDOM NAME].ini

  4. May drop the following file, which is a rookit component that hides processes, registry subkeys, and files associated with this risk:

    %System%\drivers\winik.sys

    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).

  5. Displays advertisements when certain keywords are typed into a search engine. The functionality of this adware component is that you can type keywords instead of the URLs to reach Web sites.

  6. Contacts the server www.commonname.com, on port TCP port 80, and other related Web sites, which are typically online gambling sites.

  7. Runs as a Browser Helper Object, which means that the adware component receives information regarding all the actions inside Internet Explorer.

  8. May log Internet usage data without using an identification number. In other words, this risk does not appear to log personally identifiable information.



The following instructions pertain to all Symantec antivirus products that support security risk detection.
  1. Update the definitions.
  2. Restart the computer in Safe mode.
  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 update the definitions
To obtain the most recent definitions, start your Symantec program and run LiveUpdate.

2. To restart the computer in Safe mode
Shut down the computer, and turn off the power. Wait for at least 30 seconds, and then restart the computer in Safe mode. For instructions, read "How to start the computer in Safe Mode ."

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.

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 and delete the subkeys:

    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
    \{046D6EA4-15E3-4b27-8010-45BD78A9219E}
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
    \{5A5F9339-F6A5-4464-95E3-A00BCA6206E3}
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
    \{746CEE9E-7A1D-417f-9A35-804A0217268B}
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
    \{3C7624D1-C414-4D1B-8FE9-52FA0558FB62}
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
    \{C8FFABC6-B706-4278-9399-169DF9FBF37E}
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
    \{127ACE33-7EA8-45F0-8B55-EFE8B8068BEF}
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\INetKW.Browser
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\INetKW.Browser.1
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\INetKW.Handler
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\INetKW.Handler.1
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\INetKW.Helper
    HKEY_LOCAL_MACHINE\SOFTWARE\Classes\INetKW.Helper.1
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer
    \Browser Helper Objects\{046D6EA4-15E3-4b27-8010-45BD78A9219E}
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\inetmgr
    HKEY_LOCAL_MACHINE\SOFTWARE\Internet Keyword
    HKEY_LOCAL_MACHINE\SOFTWARE\[RANDOM NAME]\User
    HKEY_LOCAL_MACHINE\SOFTWARE\[RANDOM NAME]\App
    HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\[NAME SERVICE IS REGISTERED AS]
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\[NAME SERVICE IS REGISTERED AS]
    HKEY_USERS\S-1-5-21-1960408961-507921405-725345543-500\Software\Internet Keyword
    HKEY_USERS\S-1-5-21-1960408961-507921405-725345543-500\Software\[RANDOM NAME]\User

  4. Naviagte to the subkey:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall

  5. In the right pane, delete the values:

    "DisplayName" = "Internet Keyword"
    "UninstallString" = "C:\Program Files\Internet Keyword\unins.exe"

  6. Exit the Registry Editor.