Q1. LM authentication is not as strong as Windows NT authentication so you may want to disable its use, because an attacker eavesdropping on network traffic will attack the weaker protocol. A successful attack can compromise the user's password. How do you disable LM authentication in Windows XP?
A. Stop the LM service in Windows XP
B. Disable LSASS service in Windows XP
C. Disable LM authentication in the registry
D. Download and install LMSHUT.EXE tool from Microsoft website
Answer: C
Explanation: http://support.microsoft.com/kb/299656
Q2. What does an ICMP (Code 13) message normally indicates?
A. It indicates that the destination host is unreachable
B. It indicates to the host that the datagram which triggered the source quench message will need to be re-sent
C. It indicates that the packet has been administratively dropped in transit
D. It is a request to the host to cut back the rate at which it is sending traffic to the Internet destination
Answer: C
Explanation: CODE 13 and type 3 is destination unreachable due to communication administratively prohibited by filtering hence maybe they meant "code 13", therefore would be C).
Note:A - Type 3B - Type 4C - Type 3 Code 13D - Typ4 4
Q3. What type of attack changes its signature and/or payload to avoid detection by antivirus programs?
A. Polymorphic
B. Rootkit C. Boot sector
D. File infecting
Answer: A
Explanation: In computer terminology, polymorphic code is code that mutates while keeping the original algorithm intact. This technique is sometimes used by computer viruses, shellcodes and computer worms to hide their presence.
Q4. What does the following command in "Ettercap" do?
ettercap –NCLzs –quiet
A. This command will provide you the entire list of hosts in the LAN
B. This command will check if someone is poisoning you and will report its IP
C. This command will detach ettercap from console and log all the sniffed passwords to a file
D. This command broadcasts ping to scan the LAN instead of ARP request all the subset IPs
Answer: C
Explanation: -L specifies that logging will be done to a binary file and –s tells us it is running in script mode.
Q5. The following excerpt is taken from a honeyput log. The log captures activities across three days. There are several intrusion attempts; however, a few are successful. Study the log given below and answer the following question:
(Note: The objective of this questions is to test whether the student has learnt about passive OS fingerprinting (which should tell them the OS from log captures): can they tell a SQL injection attack signature; can they infer if a user ID has been created by an attacker and whether they can read plain source – destination entries from log entries.)
What can you infer from the above log?
A. The system is a windows system which is being scanned unsuccessfully.
B. The system is a web application server compromised through SQL injection.
C. The system has been compromised and backdoored by the attacker.
D. The actual IP of the successful attacker is 24.9.255.53.
Answer: A
Q6. Null sessions are un-authenticated connections (not using a username or password.) to an NT or 2000 system. Which TCP and UDP ports must you filter to check null sessions on your network?
A. 137 and 139
B. 137 and 443
C. 139 and 443
D. 139 and 445
Answer: D
Explanation: NULL sessions take advantage of “features” in the SMB (Server Message Block) protocol that exist primarily for trust relationships. You can establish a NULL session with a Windows host by logging on with a NULL user name and password. Primarily the following ports are vulnerable if they are accessible: 139 TCP NETBIOS Session Service 139 UDP NETBIOS Session Service 445 TCP SMB/CIFS
Q7. What ports should be blocked on the firewall to prevent NetBIOS traffic from not coming through the firewall if your network is comprised of Windows NT, 2000, and XP?(Choose all that apply.
A. 110
B. 135
C. 139
D. 161
E. 445
F. 1024
Answer: BCE
Explanation: NetBIOS traffic can quickly be used to enumerate and attack Windows computers.
Ports 135, 139, and 445 should be blocked.
Q8. Kevin is an IT security analyst working for Emerson Time Makers, a watch manufacturing company in Miami. Kevin and his girlfriend Katy recently broke up after a big fight. Kevin believes that she was seeing another person. Kevin, who has an online email account that he uses for most of his mail, knows that Katy has an account with that same company. Kevin logs into his email account online and gets the following URL after successfully logged in: http://www.youremailhere.com/mail.asp?mailbox=Kevin&Smith=121%22 Kevin changes the URL to: http://www.youremailhere.com/mail.asp?mailbox=Katy&Sanchez=121%22 Kevin is trying to access her email account to see if he can find out any information. What is Kevin attempting here to gain access to Katy's mailbox?
A. This type of attempt is called URL obfuscation when someone manually changes a URL to try and gain unauthorized access
B. By changing the mailbox's name in the URL, Kevin is attempting directory transversal
C. Kevin is trying to utilize query string manipulation to gain access to her email account
D. He is attempting a path-string attack to gain access to her mailbox
Answer: C
Q9. Eve decides to get her hands dirty and tries out a Denial of Service attack that is relatively new to her. This time she envisages using a different kind of method to attack Brownies Inc. Eve tries to forge the packets and uses the broadcast address. She launches an attack similar to that of fraggle. What is the technique that Eve used in the case above?
A. Smurf
B. Bubonic
C. SYN Flood
D. Ping of Death
Answer: A
Explanation: A fraggle attack is a variation of the smurf attack for denial of service in which the attacker sends spoofed UDP packets instead of ICMP echo reply (ping) packets to the broadcast address of a large network.
Q10. What attack is being depicted here?
A. Cookie Stealing
B. Session Hijacking
C. Cross Site scripting
D. Parameter Manipulation
Answer: D
Explanation: Manipulating the data sent between the browser and the web application to an attacker's advantage has long been a simple but effective way to make applications do things in a way the user often shouldn't be able to. In a badly designed and developed web application, malicious users can modify things like prices in web carts, session tokens or values stored in cookies and even HTTP headers. In this case the user has elevated his rights.