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CAS-005
Security Operations
hard
Question 3 of 22

A threat hunting team discovers beaconing behavior in network logs: an internal host makes outbound HTTPS connections to the same external IP every 300 seconds with nearly identical payload sizes. Endpoint protection did not trigger any alerts. Which combination of threat hunting tools and techniques is MOST appropriate to investigate further?

ARun a CVSS score lookup for the destination IP and check the CVE database for known vulnerabilities
BCorrelate the beaconing host's process execution logs with network connection events in the SIEM, extract the communicating process, and submit any associated executables to a malware sandbox for IoC extraction
CBlock the destination IP at the firewall and close the investigation
DReview the SSL certificate on the destination IP using a web browser

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