A penetration tester wants to send a specific network packet with custom flags and sequence numbers to a vulnerable target. Which of the following should the tester use?

The correct answer is C. Scapy. Scapy is a powerful interactive Python-based packet manipulation tool used by penetration testers to create, modify, send, and analyze custom packets. It supports many protocols and allows you to set TCP flags, sequence numbers, and more. tcprelay is used to redirect TCP…

Submitted by tyler.j· Mar 6, 2026Attacks and Exploits

Question

Options

Atcprelay
BBluecrack
CScapy
Dtcpdump

How the community answered

(25 responses)

A
4% (1)
B
4% (1)
C
92% (23)

Explanation

Scapy is a powerful interactive Python-based packet manipulation tool used by penetration testers to create, modify, send, and analyze custom packets. It supports many protocols and allows you to set TCP flags, sequence numbers, and more. tcprelay is used to redirect TCP traffic, not to craft packets. Bluecrack is used for cracking Bluetooth encryption, irrelevant in this context. tcpdump is a packet capture tool, not suitable for crafting or injecting packets.

Topics

#packet crafting#Scapy#network attacks#exploit development

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