Data Exfiltration Over Alternate Network Medium
This rule detects potential data exfiltration over an alternate network medium by monitoring TCP traffic from the home network to any destination. It triggers an alert if the data size of an established connection exceeds 10000 bytes and if this occurs 20 times within a 60-second window from the same source IP address. This pattern suggests a large volume of data being transferred out of the network, which could indicate exfiltration.
Suricata

