We previously told you about DevilRobber and what sort of unsavory things it can do to (and with) your Mac. (In case you don't click over to read the article, here's the scoop: it's bad. Real bad.) Back in the day (November 1st), it was a Trojan horse and sent a little of your personal info off to some far flung servers.
But CNet is reporting the new version has mutated, and now it tries to grab your Terminal history and system logs. This new "improved" version can be picked up by downloading Pixelmator from someplace that is not the Mac App Store (currently the only place to legitimately get a copy). But the fun doesn't end there! It also tries (but does not succeed at) making off with information stored in your 1Password data file. CNet's story makes it sound like DevilRobber can actually do something with that file, but in reality that data is safe, as confirmed by Agile themselves. They have a nice writeup on their site about all of this and the steps you can take to make extra super sure your data is safe.
This is also another of those opportunities we here at TUAW occasionally take to remind you that malware is bad but real, and you DO need to protect yourself. Remember "Macs don't get viruses" is just as accurate as "Macs don't have any good games" (which is to say not accurate at all), and protection is ridiculously easy. Get yourself a nice antivirus utility and spend a little time with Little Snitch to make sure nothing suspicious is being sent from your machine, and that should help you avoid a lot of problems.