I think I have unwittingly installed a virus/trojan/whatever. I accidentally ran a less than respectable program that asked for my password (which I stupidly provided), and Littlesnitch started popping up alerts that "divx" wanted to connect to a bunch of Russian servers all of a sudden. Sure enough I have a divx app running on start up now. After force quitting it, I tried to run a divx video and it seemed to work fine, so I'm guessing it's just using the name. I don't think it does anything nefarious since it's blocked by Littlesnitch, but if there's any way I can get rid of it for good or prevent it from running on log on (it's not on log on items), please let me know. Its parent app is launchd if that provides any further insight.