WatchDirectory - WatchDirectory monitors a file system directory and performs tasks when certain conditions are met.
FastNetMon - FastNetMon is a very fast DDoS analyzer with sflow/netflow/mirror support.
Watch 4 Folder - Watch 4 Folder is a simple to use, small and portable tool to monitor folders and file activities.
Arbor - Easily manage product development
iWatch - iWatch is a realtime filesystem monitoring program.
Corero - Real-time, high-performance, automatic DDoS attack protection, on-premis and in the cloud, with comprehensive attack visibility, analytics, reporting.