And weirder still: following a reboot of my Windows 7 PC (with HFS still running), the EXE and VFS files were gone when the new session started. Not renamed, not recycled, but gone.
I've noticed too that there are hundreds of entries in the "IPS" file too, even though only myself and my brother ever upload and download to this machine. Virus and trojan scans turn up clean. What in the world is happening?