Needy.D is a family of Java applet based trojans that
are downloaded into user computer and download further
trojans and modify explorer settings.
Needy activates when user views a web page or
HTML E-mail that contains reference to the trojan.
This variant of Needy, Needy.D is a simple trojan downloader
that downloads Trojan dropper win32.mute and executes it.
It does not modify any settings by itself.
The Needy.D is activated when a web site containing the
trojan is loaded with unpacthed Microsoft Internet Explorer
browser. When the JAR file containing the trojan is executed
it uses Microsoft Internet Explorer VerifierBug vulnerability to get
full privileges by escaping the Java security, and execute its
code.
When executed trojan downloads trojan downloader win32.mute
and executes it.
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