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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.

Disinfection & Removal

Automatic Disinfection

Allow F-Secure Anti-Virus to disinfect the relevant files.

For more general information on disinfection, please see Removal Instructions.

Technical Details

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.


Detection in F-Secure Anti-Virus was published on March 30th, 2004 in update:

Detection Type: PC
Database: 2004-03-30_02

Description Created: Jarno Niemela, March 30th, 2004;

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