JS.Ffsniff

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.

Protection

• Initial Rapid Release version March 3, 2006
• Latest Rapid Release version March 3, 2006
• Initial Daily Certified version March 3, 2006
• Latest Daily Certified version June 17, 2008 revision 017
• Initial Weekly Certified release date March 6, 2006

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

• Wild Level: Low
• Number of Infections: 0 - 49
• Number of Sites: 0 - 2
• Geographical Distribution: Low
• Threat Containment: Easy
• Removal: Easy

Damage

• Damage Level: Low

Distribution

• Distribution Level: Low