According to F-Secure, this is how you find out:
- Open Terminal.app (it’s inside the Utilities Folder on your Applications Folder)
- Paste the following text and hit return: defaults read /Applications/Safari.app/Contents/Info LSEnvironment (If it says The domain/default pair of (/Applications/Safari.app/Contents/Info, LSEnvironment) does not exist’, go to the next step.
- Paste the following text and hit return: defaults read ~/.MacOSX/environment DYLD_INSERT_LIBRARIES Your system is already clean of this variant if you got an error message similar to the following: The domain/default pair of (/Users/joe/.MacOSX/environment, DYLD_INSERT_LIBRARIES) does not exist”
If your Mac does not give you these error messages, you might be infected. If that’s the case, the link above will get you to the F-Secure page with instructions on how to get rid of it. It’s a little bit technical, if you think you can’t do it, take your Mac to someone who can do it for you. If your Mac is clean, then, if you don’t need Java, don’t install it. Be careful what pages you visit on the web, and never install anything, or give your admin password to anything that you didn’t ask for.