CrowdStrike CCFR-201b - CrowdStrike Certified Falcon Responder

The fastest Falcon Platform action to stop active data exfiltration from a known endpoint is network containment. Containing Bob-Desktop from the Falcon console restricts network communication while preserving Falcon sensor connectivity for investigation and response. This is better than trying to create an IOA or IOC for a specific destination IP because the adversary may change infrastructure, use multiple destinations, or already have active sessions. Accessing the host through RTR can support follow-up investigation, but the immediate containment action should be initiated from the Falcon console. The objective is not just to detect future traffic; it is to stop current outbound communication. Network containment is the direct responder action for isolating a host involved in suspected exfiltration.