A Security Analyst Has Received Reports of Very Slow, Intermittent

Multiple Choice

A security analyst has received reports of very slow, intermittent access to a public-facing corporate server. Suspecting the system may be compromised, the analyst runs the following commands: Based on the output from the above commands, which of the following should the analyst do NEXT to further the investigation?

A) Run crontab -r; rm -rf /tmp/.t to remove and disable the malware on the system. Run crontab -r; rm -rf /tmp/.t to remove and disable the malware on the system.
B) Examine the server logs for further indicators of compromise of a web application.
C) Run kill -9 1325 to bring the load average down so the server is usable again. kill -9 1325 to bring the load average down so the server is usable again.
D) Perform a binary analysis on the /tmp/.t/t file, as it is likely to be a rogue SSHD server. Perform a binary analysis on the /tmp/.t/t file, as it is likely to be a rogue SSHD server.