only thing it found was some utility in a windows xp iso i had lying around inside a home directory tar gzip dump [why is it looking inside my archives?]

aside from that rundll32.exe has disappeared from the task manager after a reboot, but i'm still shaken up by this. i've never had to worry about this on unix since i don't game that often on there and all the software i use there is AT LEAST open sores. unsure what operating system task would cause rundll to be invoked by my own user