Trojan.Jasbom is a Trojan horse that attempts to
exploit the Microsoft Internet Explorer ITS Protocol Zone Bypass Vulnerability
(as described in the Microsoft Security Bulletin MS04-013).
The Trojan logs keystrokes, mouse clicks, and application memory, when using the
application Lineage. The Trojan sends this logged information to a Web site on
the j4sb.com domain.
Technical details can be found on this
Symantec page.
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