Magic Packet Implant Activation Sequence

This rule detects a sequence of TCP SYN packets with a zero data size, originating from any source to any destination within the home network. The detection is triggered when 5 such packets are observed from the same source within a 3-second window. This pattern is indicative of a 'Magic Packet Implant Activation Sequence', which could be used by an attacker for persistence or command and control.