1. Symantec/
  2. Security Response/
  3. JS.Ffsniff


Risk Level 1: Very Low

March 3, 2006
February 13, 2007 12:51:43 PM
Trojan Horse
Systems Affected:

JS.Ffsniff is a JavaScript Trojan horse that logs information from HTML forms in Web pages and sends the information to a predefined email address.

The Trojan is a JavaScript file, which can be included with a malicious Mozilla Firefox browser extension.

Antivirus Protection Dates

  • Initial Rapid Release version March 3, 2006
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version March 3, 2006
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date March 6, 2006
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Candid Wueest

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STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
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