Category: Malware

Type: -

Aliases: Needy.D, Java/Needy.D


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 email 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.


Automatic action

Based on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the detected program or file, or ask you for a desired action.

Knowledge Base

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About the product

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Submit a sample

Submit a file or URL for further analysis.

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.