Tonight I left my computer for a bit (30 to 45 minutes) and came back to find all my windows gone and Security System 2009 popping up all over. Background wallpaper was changed as well. Symantec had removed 8 various items automatically while I was away (2 "Packed.Generic.218", 2 "Trojan.Vundo", 2 "Infostealer", and 2 "Hacktool.Rootkit"). However, I went ahead and did some scans with Adaware and Symantic's full scan. Neither came up with anything, but the Security System thing kept popping up. So, I ran Malwarebytes. It found 11 things, some of which it deleted and others it removed upon reboot. However, upon a second scan, C:\WINDOWS\system32\drivers\str.sys (Rootkit.Agent) popped up again. Tried a couple more times, same result. Then I found this site, so started from scratch. Symantec found nothing. Used the CCleaner twice. Disabled Symantec. Ran Malwareytes again (rootkit still showing as present) as well as SAS (found nothing). Java is the current version. Ran Hijackthis. Logs posted as requested. Now, how do I go about getting this bugger off here? Or am I stuck with a reinstall?