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Question 63 - PT0-002 discussion

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A penetration tester wants to scan a target network without being detected by the client's IDS.

Which of the following scans is MOST likely to avoid detection?

A.
nmap -p0 -T0 -sS 192.168.1.10
Answers
A.
nmap -p0 -T0 -sS 192.168.1.10
B.
nmap -sA -sV --host-timeout 60 192.168.1.10
Answers
B.
nmap -sA -sV --host-timeout 60 192.168.1.10
C.
nmap -f --badsum 192.168.1.10
Answers
C.
nmap -f --badsum 192.168.1.10
D.
nmap -A -n 192.168.1.10
Answers
D.
nmap -A -n 192.168.1.10
Suggested answer: C

Explanation:

The nmap -f --badsum 192.168.1.10 command is most likely to avoid detection by the client's IDS, as it will use two techniques to evade IDS signatures or filters. The -f option will fragment the IP packets into smaller pieces that might bypass some IDS rules or firewalls. The --badsum option will use an invalid checksum in the TCP or UDP header that might cause some IDS systems to ignore the packets.

asked 02/10/2024
Hicham Kaoussi
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