you must create an autorun.inf file not a folder, you can put inside of your pen-drive or removable disks.
To perform a scan with your anti-virus, hold down the Shift key before you insert the pen-drive and start the scan.
We can check to see if this is still the malware:
download to your desktop
open it and make sure that all options are checked, click on "Scan Now" at the end of the scan will be released (always on your desktop inside the folder suspectfile) two files.
Go to office http://www.freefilehosting.net the zip file and write in your next reply URL where I can get it.
Remember the scan with no connection with the antivirus disabled unless then resume scanning finished.
SystemScan is recognized, mistake, by some antivirus as infected.