Can I determine how the Flashback trojan infected my machine despite disabling Java?

Apple's update on April 17, 2012 detected and deactivated the Flashback trojan.

Yet two weeks ago I had following the instructions here. After concluding that my Mac is not infected, I disabled Java.

I don't understand how Flashback could have sneaked in, especially after my guard has been up after an Arstechnica article, but that no longer matters.

How do I find out what kind of damage might have already been done? Will one of the log files contain a trace of what has happened?

Solution 1:

I'd be surprised if the logs told you anything useful.

If you're concerned, you could install one of the free AV products for the Mac. Do a full system scan to ensure that all traces of the trojan have been removed.