Earlier today, I was using the family PC before I left to go job hunting. As I was leaving, my mom used XP Fast User Switching to switch to her account and browse the internet using, sadly, IE 6. I came home, and after she logged off, discovered an AVG Resident Shield warning telling me that in my moms temporary internet directory, a troajn was downloaded. I believe the name was Downloader.Agent.M3. I got rid of the trojan, logged off, and then started playing GameCube. She came to me complaining that most of her Internet Explorer favorites were gone. I searched all the directories they SHOULD be in, restored the computer to yesterday (LONG before the trojan came about), and even used Firefox to migrate her favorites to it, hoping it could find em. nope. gone. WHERE ARE THEY? She had many important websites in her favorites, and she was pretty angry that they dissapeared.
One good thing DID came because of this though...it FINALLY convinced her to start using Mozilla Firefox. She deleted all her IE6 shortcuts, and replaced em with Firefox. This shouldn't happen again, as long she uses firefox.