Java botnets infected all Operating System.
Please take note of the following article.
Disable all Java in your browsers.
Uninstall Java if not in use.
The Java botnets is known as HEUR:Backdoor.Java.Agent.a.
Kasperksy detected this virus!
Java botnet is all crossplatform.
Regardless what Operating System you are using.
Even Mac OS X and Linux is infected! Read the article above!