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

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.

Suspect a file is incorrectly detected (a False Positive)?

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 detection database 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.

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Submit a sample

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Technical Details

Adware:W32/Xupiter displays various pop-up advertisements, including advertising materials that may be considered inappropriate or offensive adult content. It also functions as a browser and search engine hijacker.


Xupiter may silently install itself onto a system via an ActiveX drive-by download, when a user whose Microsoft Internet Explorer browser's Security Level settings are not set to High visits the product's official website. Some user also report that the adware is bundled with peer-to-peer file sharing software, Grokster.

The adware is installed on:

  • %ProgramFiles%\Sqwire
  • %ProgramFiles%\xUPITER


While active, the adware can:

  • Modify the browser's default homepage and searchpage
  • Redirect to third patry search engines, such as,,
  • Display various pop-ups advertisements
  • Cause system crashes