This is a very big deal. Turn off your WiFi or ethernet RIGHT NOW and Print this out or write it down if you can. I had this happen to me this past Wednesday afternoon, it's now Saturday night. You can read all of my horror story by searching google for these keywords without quotes: "sophos Lion, iCloud hijacked, network poisoned, nightmare".
Basically this:
Wednesday afternoon between 1:02 and 1:03 PM, 10 emails were sent from my me.com email address. I caught that quickly, and changed my Apple ID's password and security questions. Two days later, I opened my MacBook and it wouldn't get any mail and asked for my Apple password again because someone else had changed it to lock me out. When MacBook is open, PS3 can't sign on to home network. When MacBook is closed/off, PS3 can sign on as normal. We are infected, folks.
What you can do to get a clean mac in a few hours:
ON THE MAC, TURN OFF YOUR INTERNET CONNECTION RIGHT NOW. Copy every subdirectory of your home folder somewhere else, like an external hard drive but DO NOT use time machine or any time machine drives or drives with anything important on them. Click your desktop, hold CMD and SHIFT and hit G. Type in ~/Library/LaunchAgents. This is where you will see some infected crap with keywords like FolderSync and if you inspect you will find out your files are being copied from your computer, somewhere else, using launchd system priveleges. Little Snitch isn't going to catch it either. If you have nothing there yet, or the folder doesn't even exist, mine didn't show up until 2 days after the spam emails went out!!! So WATCH YOUR LAUNCHAGENTS FOLDERS!!! Your Lion recovery partition may also be infected. I was UNABLE to restore to Lion from the boot loader. I was also unable to boot into anything using the U shortcut, i.e. any USB drives. You have to again login to Apple from the boot loader and give up your password there again! And even if you do that, which I tried already, so don't waste your time, the download will hang indefinitely. Lion will never download. Dig your Leopard DVD out of the closet and either stick it in the MacBook, or stick it in an external DVD drive and hook that into your MacBook Air. HOLD DOWN YOUR POWER BUTTON AND KILL THE MACBOOK'S POWER. Hold down the C button on your keyboard and then hit the power button to turn your macbook back on. For some reason, the U button i.e. for USB drives doesn't work for this, only the C button for CD does, even if you're using an external USB DVD drive. Follow the instructions to load Leopard onto the system and ERASE EVERYTHING on your infected hard drive. Finish installing Leopard. Configure Leopard, log in to Leopard, click the spyglass in the top-right corner and type in the word - terminal - and hit return. When the prompts come up, type in this, then hit return to run each command, line by line, MY NOTES WILL BE ***STARRED***:
diskutil list
***You're looking for the one that says "Recovery" something or other. You want to take note of the /disk0s2 looking part. Continue with the command below***
diskutil eraseVolume HFS+ Macintosh HD /dev/disk0s2
***IN THE ABOVE COMMAND, THE /dev/disk0s2 PART IS GOING TO HAVE TO BE WHAT YOUR SYSTEM REPORTED FROM THE diskutil list COMMAND!!! IT MAY BE THAT YOUR "Recovery" PARTITION IS ON /dev/disk0s3 OR EVEN /dev/disk0s1 SO YOU MUST MAKE SURE YOU'RE ERASING THE RECOVERY PARTITION. Complete the command above and then close the terminal.***
Now click the spyglass again in the top-right corner. Type in the words - disk utility - and hit return on the keyboard. Now in the column on the left, click the disk that is the parent to the Macintosh HD, also may be noted as your main partition, the one you're in now. Bring your mouse a couple inches to the right where it says "Partition" and then click on the bottom-right-corner of the big, blue box and drag the pyramid-looking shape all the way downward until it can't go any further. This is recovering the space from the infected partition so we can put it back later if we want Lion again in the future. Restart your Mac again and log back in. Now turn on your WiFi or Ethernet connection on your Mac and IMMEDIATELY click the apple in the top-left corner of the screen, click "Software Update..." after that and install every single update on there. It will ask to restart. When you are back again and ready to log in, immediately click the apple and "Software Update..." again. You will need to update again, one more time, making it three times you will need to run Software Update before you're safe to start googling stuff and checking your credit/debit accounts. I would recommend googling Sophos Mac because it's free antivirus software. People say it's good. I don't know because I just found out about it and I'm installing it on Leopard right now. Good luck out there.
Some friendly advice: Change your important passwords on the first of the month, don't keep ANYTHING secret or sensitive on your computers at all because it's never safe. Once it's mounted, it's accessible, even if it requires a seriously good password to open, once it's open it's accessible to possibly anybody. Print things out. Write them down. My macbook was sending some of my health records over to somewhere I have no idea where they went because they were being triggered by launchd to be synced on the mount of a specific drive I had my stuff on. Someone is watching, someone has our passwords and didn't hack them, someone has direct access to your Lion system. I don't know how, I don't know why. Just get off Lion if you've had the spam thing happen to you because two days later my personal records were bein sent over my network to somewhere I have no idea. Or just don't use that computer until this becomes more widespread and a fix is found. I need my laptop by Monday so I had to go back safely to Leopard because my recovery partition was infected with a very low level virus of some kind. It got between me and the boot loader & system recovery, between that and the apple servers and prevented me from restoring to a safe copy of Lion, and it has the ability to reset my apple id's passwords and perhaps see my security questions, billing info, cell phone and address. It also stole all of my contacts and emailed them spam, and reset my password two more times after I changed it from a secure, outside system. It jumped, I believe from my Macbook air to my wife's Macbook pro and when either or both of those laptops were on the network wifi at home, nothing that wasn't a Mac or PC could get onto the network, i.e. our PS3 had a network error and was unable to connect until we powered down the Macs, then immediately the PS3 connected. Best of luck. I also have a feeling if you try to keep your system files, not your user files, from this infection, you may be reinfecting yourself and so that's why I erased the Lion recovery partition. When I did that, Snow Leopard was finally mounting, even under Leopard I couldn't get it to mount until I deleted the Lion recovery partition and rebooted. Goodnight. Hopefully my password won't be changed on me by the morning. LO effing L