ECCouncil 312-50v12 Practice Test - Questions Answers, Page 17

In the context of Windows Security, what is a 'null' user?

What does the following command in netcat do? nc -l -u -p55555 < /etc/passwd

What hacking attack is challenge/response authentication used to prevent?

In this attack, a victim receives an e-mail claiming from PayPal stating that their account has been disabled and confirmation is required before activation. The attackers then scam to collect not one but two credit card numbers, ATM PIN number and other personal details. Ignorant users usually fall prey to this scam.

Which of the following statement is incorrect related to this attack?

Bob is going to perform an active session hijack against Brownies Inc. He has found a target that allows session oriented connections (Telnet) and performs the sequence prediction on the target operating system. He manages to find an active session due to the high level of traffic on the network. What is Bob supposed to do next?

ViruXine.W32 virus hides their presence by changing the underlying executable code.

This Virus code mutates while keeping the original algorithm intact, the code changes itself each time it runs, but the function of the code (its semantics) will not change at all.

Here is a section of the Virus code:

What is this technique called?

Identify the correct terminology that defines the above statement.

Nathan is testing some of his network devices. Nathan is using Macof to try and flood the ARP cache of these switches.

If these switches' ARP cache is successfully flooded, what will be the result?

You are programming a buffer overflow exploit and you want to create a NOP sled of 200 bytes in the program exploit.c

What is the hexadecimal value of NOP instruction?