Refer to the exhibit.

The alert identifies known malicious communication from a host with Conduit software installed. Conduit is flagged as spyware/malware by Cisco Secure Analytics.

A: Alerting the incident response team is standard procedure when high-priority threats are confirmed.

E: Quarantining the host via endpoint isolation (e.g., Secure Endpoint or network-based access control) is a critical action to prevent lateral movement.

Blocking the IP alone (B) does not stop internal damage. Shutting down the host (D) prematurely removes forensic evidence. Uninstalling the software (C) should occur later during recovery after analysis.