Threat Explorer

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VBS.Seeker.F

VBS.Seeker.F

Discovered:
13 March 2002
Updated:
13 February 2007

This Trojan horse creates the file \Windows\AboutBlank.htm. It then changes the Internet Explorer home page to that file, so that it is executed when you start Internet Explorer.

The AboutBlank.htm is an HTML file that contains JavaScript. This script opens the original Internet Explorer home page. This is done to disguise the actions of the Trojan, which then runs in the background and attempts to contact the hacker who created it.

Antivirus Protection Dates

  • Initial Rapid Release version 13 March 2002
  • Latest Rapid Release version 19 February 2013 revision 016
  • Initial Daily Certified version 13 March 2002
  • Latest Daily Certified version 21 February 2011 revision 019
  • Initial Weekly Certified release date 13 March 2002
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Obtain the most recent virus definitions. There are two ways to do this:
    • Run LiveUpdate. LiveUpdate is the easiest way to obtain virus definitions. These virus definitions have undergone full quality assurance testing by Symantec Security Response and are posted to the LiveUpdate servers one time each week (usually Wednesdays) unless there is a major virus outbreak. To determine whether definitions for this threat are available by LiveUpdate, look at the Virus Definitions (LiveUpdate) line at the top of this write-up.
    • Download the definitions using the Intelligent Updater. Intelligent Updater virus definitions have undergone full quality assurance testing by Symantec Security Response. They are posted on U.S. business days (Monday through Friday). They must be downloaded from the Symantec Security Response Web site and installed manually. To determine whether definitions for this threat are available by the Intelligent Updater, look at the Virus Definitions (Intelligent Updater) line at the top of this write-up.

      Intelligent Updater virus definitions are available here. For detailed instructions on how to download and install the Intelligent Updater virus definitions from the Symantec Security Response Web site, click here.
  1. Start Norton AntiVirus (NAV), and make sure that NAV is configured to scan all files. For instructions on how to do this, read the document How to configure Norton AntiVirus to scan all files.
  2. Run a full system scan.
  3. Delete all files that are detected as VBS.Seeker.F


Writeup By: Gor Nazaryan