ECCouncil 312-50v13 : Certified Ethical Hacker Exam (CEHv13)

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ECCouncil Certified Ethical Hacker Exam (CEHv13) Sample Questions:

1. Peter extracts the SIDs list from Windows 2000 Server machine using the hacking tool "SIDExtractor". Here is the output of the SIDs: From the above list identify the user account with System Administrator privileges.

A) John
B) Shawn
C) Rebecca
D) Micah
E) Chang
F) Sheela
G) Somia

2. Michael, an ethical hacker at a New York-based e-commerce company, is evaluating the security of their online payment system after a recent incident where fraudulent transactions went undetected. His investigation reveals that the system uses an asymmetric encryption algorithm to ensure the authenticity of payment confirmations. He finds that the algorithm employs a public-key cryptosystem, where the sender signs the transaction with a private key, and the recipient verifies it using a corresponding public key located in a directory. During his test, Michael intercepts a signed message and notices that the algorithm supports modular exponentiation for generating digital signatures, a process critical for verifying the identity of the signatory. He aims to assess if the algorithm's configuration could be vulnerable to a man-in-the-middle attack due to its key structure.
Which asymmetric encryption algorithm should Michael identify as the one used by the payment system?

A) ElGamal
B) DSA
C) Diffie-Hellman
D) RSA

3. At a power distribution facility in Phoenix, Arizona, ethical hacker Sameer Das is performing an OT security assessment. He demonstrates that a programmable controller accepts modifications delivered over the network without checking the origin or cryptographic validity of the package. By uploading altered instructions, he changes how the controller processes commands during operations. Which IoT/OT threat best represents this technique?

A) Exploit kits
B) Firmware update attack
C) Remote access using backdoor
D) Forged malicious device

4. A penetration tester is investigating a web server that allows unrestricted file uploads without validating file types. Which technique should be used to exploit this vulnerability and potentially gain control of the server?

A) Conduct a brute-force attack on the server ' s FTP service to gain access
B) Perform a SQL injection attack to extract sensitive database information
C) Use a Cross-Site Scripting (XSS) attack to steal user session cookies
D) Upload a shell script disguised as an image file to execute commands on the server

5. While conducting a covert penetration test on a UNIX-based infrastructure, the tester decides to bypass intrusion detection systems by sending specially crafted TCP packets with an unusual set of flags enabled.
These packets do not initiate or complete any TCP handshake. During the scan, the tester notices that when certain ports are probed, there is no response from the target, but for others, a TCP RST (reset) packet is received. The tester notes that this behavior consistently aligns with open and closed ports. Based on these observations, which scanning technique is most likely being used?

A) TCP Connect scan to complete the three-way handshake
B) ACK flag scan to evaluate firewall behavior
C) FIN scan using stealthy flag combinations
D) Xmas scan leveraging RFC 793 quirks

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