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Brown Orifice

Classification

Category: Malware

Type: Backdoor

Aliases: Brown Orifice, Backdoor.BrownOrifice

Summary


This backdoor is a Java applet that uses a vulnerability in the Netscape's implementation of Java virtual machine.

Removal


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

See the manual for your F-Secure product on the Help Center.

Contact Support

Chat with or call an expert for help.

Submit a sample

Submit a file or URL for further analysis.

Technical Details


When the user enters a hostile web page with the Netscape browser, the applet starts.Basically the backdoor acts like a file server. When it is active, it allows access to the contents of the victim's hard drive using the http protocol.

By default it listens on the port 8080, but this can be configured. The backdoor runs in top of Netscape's implementation of Java virtual machine and it terminates as soon as JVM terminates - usually when the browser is closed.The backdoor does not install anything on the victim machine.

F-Secure Anti-Virus detects the class file when it is accessed.To prevent this and similar problems in the future, you can turn off the Java functionality from Netscape's Preferences.