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An engineer discovered a breach, identified the threat’s entry point, and removed access. The engineer was able to identify the host, the IP address of the threat actor, and the application the threat actor targeted. What is the next step the engineer should take according to the NIST SP 800-61 Incident handling guide?

A security analyst reviews the firewall and observes the large number of frequent events. The analyst starts the packet capture with the Wireshark and identifies that TCP port reuse was detected incorrectly as a TCP split-handshake attack by the firewall. How must an impact from this event be categorized? 

An analyst is investigating a host in the network that appears to be communicating to a command and control server on the Internet. After collecting this packet capture, the analyst cannot determine the technique and payload used for the communication.

Which obfuscation technique is the attacker using? 

What causes events on a Windows system to show Event Code 4625 in the log messages? 

Which element is included in an incident response plan as stated m NIST SP800-617