Filecatalyst Detection Hot! < Bonus Inside >

alert tcp $HOME_NET any -> $EXTERNAL_NET 21 (msg:"FileCatalyst FTP Command Detected"; content:"FileCatalyst"; nocase; sid:1000001; rev:1;)

FileCatalyst isn’t your average file transfer protocol. Built for high-speed, long-distance, and high-latency links, it’s a favorite in media, defense, and energy sectors. But that same efficiency makes it a blind spot for many security and network teams. filecatalyst detection