Threat Descriptons



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


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.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

Ejik is a family of adware that targets Chinese internet users.


The adware is installed with a randomly generated file name in the following directory:

  • %windir%\system32\

It also registers itself as a plugin module for Microsoft Internet Explorer and changes the starting page of the browser from its original setting.


Members of this adware family attempt to establish HTTP connections to Chinese domains. Example of connection attempts:

  • http://w w[...].aspx
  • http://w w[...].txt
  • http://w w
  • http://w w[...].txt
  • http://w w[...].txt
  • http://w w[...].txt
  • http://w w[...].txt

Members also have the ability to download updates.

More Support


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