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.

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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

Date Created: 2006-01-01 15:16:01.0

Date Last Modified: 2009-03-31 05:51:29.0