CEH Prep (1-100)

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1. This attack technique is used when a Web application is vulnerable to an SQL Injection but the results of the injection are not visible to the attacker.
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CEH Prep (1-100) - Quiz

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2. Which Steganography technique uses Whitespace to hide secret messages?
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3. This attack uses social engineering techniques to trick users into accessing a fake Web site and divulging personal information. Attackers send a legitimate-looking e-mail asking users to update their information on the company's Web site, but the URLs in the e-mail actually point to a false Web site.
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4. This type of Port Scanning technique splits TCP header into several packets so that the packet filters are not able to detect what the packets intends to do.
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5. Jason works in the sales and marketing department for a very large advertising agency located in Atlanta.  Jason is working on a very important marketing campaign for his company's largest client. Before the project could be completed and implemented, a competing advertising company comes out with the exact same marketing materials and advertising, thus rendering all the work done for Jason's client unusable. Jason is questioned about this and says he has no idea how all the material ended up in the hands of a competitor.   Without any proof, Jason's company cannot do anything except move on. After working on another high profile client for about a month, all the marketing and sales material again ends up in the hands of another competitor and is released to the public before Jason's company can finish the project. Once again, Jason says that he had nothing to do with it and does not know how this could have happened. Jason is given leave with pay until they can figure out what is going on.   Jason's supervisor decides to go through his email and finds a number of emails that were sent to the competitors that ended up with the marketing material. The only items in the emails were attached jpg files, but nothing else. Jason's supervisor opens the picture files, but cannot find anything out of the ordinary with them. What technique has Jason most likely used?
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6. Jack Hacker wants to break into Brown Co.'s computers and obtain their secret double fudge cookie recipe.  Jack calls Jane, an accountant at Brown Co., pretending to be an administrator from Brown Co. Jack tells Jane that there has been a problem with some accounts and asks her to verify her password with him ''just to double check our records.'' Jane does not suspect anything amiss, and parts with her password. Jack can now access Brown Co.'s computers with a valid user name and password, to steal the cookie recipe. What kind of attack is being illustrated here?
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7. TCP SYN Flood attack uses the three-way handshake mechanism. 1. An attacker at system A sends a SYN packet to victim at system B. 2. System B sends a SYN/ACK packet to victim A. 3. As a normal three-way handshake mechanism system A should send an ACK packet to system B, however, system A does not send an ACK packet to system B. In this case client B is waiting for an ACK packet from client A.   This status of client B is called _________________
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8. What sequence of packets is sent during the initial TCP three-way handshake?
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9. In Trojan terminology, what is required to create the executable file chess.exe as shown below?
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10. What type of attack is shown in the following diagram?
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11. Lori is a Certified Ethical Hacker as well as a Certified Hacking Forensics Investigator working as an IT security consultant. Lori has been hired on by Kiley Innovators, a large marketing firm that recently underwent a string of thefts and corporate espionage incidents. Lori is told that a rival marketing company came out with an exact duplicate product right before Kiley Innovators was about to release it. The executive team believes that an employee is leaking information to the rival company. Lori questions all employees, reviews server logs, and firewall logs; after which she finds nothing. Lori is then given permission to search through the corporate email system. She searches by email being sent to and sent from the rival marketing company.   She finds one employee that appears to be sending very large email to this other marketing company, even though they should have no reason to be communicating with them. Lori tracks down the actual emails sent and upon opening them, only finds picture files attached to them. These files seem perfectly harmless, usually containing some kind of joke. Lori decides to use some special software to further examine the pictures and finds that each one had hidden text that was stored in each picture.   What technique was used by the Kiley Innovators employee to send information to the rival marketing company?
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12. Which of the following type of scanning utilizes automated process of proactively identifying vulnerabilities of the computing systems present on a network?
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13. Bob waits near a secured door, holding a box. He waits until an employee walks up to the secured door and uses the special card in order to access the restricted area of the target company. Just as the employee opens the door, Bob walks up to the employee (still holding the box) and asks the employee to hold the door open so that he can enter. What is the best way to undermine the social engineering activity of tailgating?
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14. Which of the following countermeasure can specifically protect against both the MAC Flood and MAC Spoofing attacks?
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15. Jimmy, an attacker, knows that he can take advantage of poorly designed input validation routines to create or alter SQL commands to gain access to private data or execute commands in the database. What technique does Jimmy use to compromise a database?
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16. If a competitor wants to cause damage to your organization, steal critical secrets, or put you out of business, they just have to find a job opening, prepare someone to pass the interview, have that person hired, and they will be in the organization.
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17. In TCP communications there are 8 flags; FIN, SYN, RST, PSH, ACK, URG, ECE, CWR. These flags have decimal numbers assigned to them: FIN = 1 SYN = 2 RST = 4 PSH = 8 ACK = 16 URG = 32 ECE = 64 CWR = 128   Jason is the security administrator of ASPEN Communications. He analyzes some traffic using Wireshark and has enabled the following filters. What is Jason trying to accomplish here?
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18. This IDS defeating technique works by splitting a datagram (or packet) into multiple fragments and the IDS will not spot the true nature of the fully assembled datagram. The datagram is not reassembled until it reaches its final destination. It would be a processor-intensive task for IDS to reassemble all fragments itself, and on a busy system the packet will slip through the IDS onto the network. What is this technique called?
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19. Web servers often contain directories that do not need to be indexed. You create a text file with search engine indexing restrictions and place it on the root directory of the Web Server.   User-agent: * Disallow: /images/ Disallow: /banners/ Disallow: /Forms/ Disallow: /Dictionary/ Disallow: /_borders/ Disallow: /_fpclass/ Disallow: /_overlay/ Disallow: /_private/ Disallow: /_themes/   What is the name of this file?
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20. SNMP is a connectionless protocol that uses UDP instead of TCP packets (True or False)
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21. Jake works as a system administrator at Acme Corp. Jason, an accountant of the firm befriends him at the canteen and tags along with him on the pretext of appraising him about potential tax benefits. Jason waits for Jake to swipe his access card and follows him through the open door into the secure systems area. How would you describe Jason's behavior within a security context?
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22. Joel and her team have been going through tons of garbage, recycled paper, and other rubbish in order to find some information about the target they are attempting to penetrate. How would you call this type of activity?
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23. SYN Flood is a DOS attack in which an attacker deliberately violates the three-way handshake and opens a large number of half-open TCP connections. The signature of attack for SYN Flood contains:
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24. What is War Dialing?
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25. An attacker finds a web page for a target organization that supplies contact information for the company. Using available details to make the message seem authentic, the attacker drafts e-mail to an employee on the contact page that appears to come from an individual who might reasonably request confidential information, such as a network administrator.   The email asks the employee to log into a bogus page that requests the employee's user name and password or click on a link that will download spyware or other malicious programming.   Google's Gmail was hacked using this technique and attackers stole source code and sensitive data from Google servers. This is highly sophisticated attack using zero-day exploit vectors, social engineering and malware websites that focused on targeted individuals working for the company.   What is this deadly attack called?
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26. What type of port scan is shown below?
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27. Stephanie works as a records clerk in a large office building in downtown Chicago. On Monday, she went to a mandatory security awareness class (Security5) put on by her company's IT department. During the class, the IT department informed all employees that everyone's Internet activity was thenceforth going to be monitored.  Stephanie is worried that her Internet activity might give her supervisor reason to write her up, or worse get her fired. Stephanie's daily work duties only consume about four hours of her time, so she usually spends the rest of the day surfing the web. Stephanie really enjoys surfing the Internet but definitely does not want to get fired for it.   What should Stephanie use so that she does not get in trouble for surfing the Internet?
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28. Attacking well-known system defaults is one of the most common hacker attacks. Most software is shipped with a default configuration that makes it easy to install and setup the application. You should change the default settings to secure the system.   Which of the following is NOT an example of default installation?
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29. Stephanie works as senior security analyst for a manufacturing company in Detroit. Stephanie manages network security throughout the organization. Her colleague Jason told her in confidence that he was able to see confidential corporate information posted on the external website https://www.jeansclothesman.com. He tries random URLs on the company's website and finds confidential information leaked over the web. Jason says this happened about a month ago. Stephanie visits the said URLs, but she finds nothing. She is very concerned about this, since someone should be held accountable if there was sensitive information posted on the website. Where can Stephanie go to see past versions and pages of a website?
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30. In the context of password security: a simple dictionary attack involves loading a dictionary file (a text file full of dictionary words) into a cracking application such as L0phtCrack or John the Ripper, and running it against user accounts located by the application. The larger the word and word fragment selection, the more effective the dictionary attack is. The brute force method is the most inclusive - though slow. Usually, it tries every possible letter and number combination in its automated exploration. If you would use both brute force and dictionary combined together to have variations of words, what would you call such an attack?
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31. An attacker has successfully compromised a remote computer. Which of the following comes as one of the last steps that should be taken to ensure that the compromise cannot be traced back to the source of the problem?
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32. Ursula is a college student at a University in Amsterdam. Ursula originally went to college to study engineering but later changed to marine biology after spending a month at sea with her friends. These friends frequently go out to sea to follow and harass fishing fleets that illegally fish in foreign waters. Ursula eventually wants to put companies practicing illegal fishing out of business. Ursula decides to hack into the parent company's computers and destroy critical data knowing fully well that, if caught, she probably would be sent to jail for a very long time. What would Ursula be considered?
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33. BankerFox is a Trojan that is designed to steal users' banking data related to certain banking entities.   When they access any website of the affected banks through the vulnerable Firefox 3.5 browser, the Trojan is activated and logs the information entered by the user. All the information entered in that website will be logged by the Trojan and transmitted to the attacker's machine using covert channel.   BankerFox does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer. What is the most efficient way an attacker located in remote location to infect this banking Trojan on a victim's machine?
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34. In the context of Trojans, what is the definition of a Wrapper?
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35. Neil is a network administrator working in Istanbul. Neil wants to setup a protocol analyzer on his network that will receive a copy of every packet that passes through the main office switch. What type of port will Neil need to setup in order to accomplish this?
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36. In what stage of Virus life does a stealth virus gets activated with the user performing certain actions such as running an infected program?
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37. One of the effective DoS/DDoS countermeasures is 'Throttling'. Which statement correctly defines this term?
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38. This tool is widely used for ARP Poisoning attack. Name the tool.
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39. David is a security administrator working in Boston. David has been asked by the office's manager to block all POP3 traffic at the firewall because he believes employees are spending too much time reading personal email. How can David block POP3 at the firewall?
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40. Fake Anti-Virus, is one of the most frequently encountered and persistent threats on the web. This malware uses social engineering to lure users into infected websites with a technique called Search Engine Optimization.   Once the Fake AV is downloaded into the user's computer, the software will scare them into believing their system is infected with threats that do not really exist, and then push users to purchase services to clean up the non-existent threats.   The Fake AntiVirus will continue to send these annoying and intrusive alerts until a payment is made. What is the risk of installing Fake AntiVirus?  
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41. In which part of OSI model does ARP Poisoning occurs?
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42. What does FIN in TCP flag define?
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43. Steven the hacker realizes the network administrator of Acme Corporation is using syskey in Windows 2008 Server to protect his resources in the organization. Syskey independently encrypts the hashes so that physical access to the server, tapes, or ERDs is only first step to cracking the passwords. Steven must break through the encryption used by syskey before he can attempt to use brute force dictionary attacks on the hashes.  Steven runs a program called "SysCracker" targeting the Windows 2008 Server machine in attempting to crack the hash used by Syskey. He needs to configure the encryption level before he can launch the attack. How many bits does Syskey use for encryption?
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44. You are the Security Administrator of Xtrinity, Inc. You write security policies and conduct assessments to protect the company's network. During one of your periodic checks to see how well policy is being observed by the employees, you discover an employee has attached cell phone 3G modem to his telephone line and workstation. He has used this cell phone 3G modem to dial in to his workstation, thereby bypassing your firewall. A security breach has occurred as a direct result of this activity. The employee explains that he used the modem because he had to download software for a department project. How would you resolve this situation?
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45. Which type of hacker represents the highest risk to your network?
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46. Bret is a web application administrator and has just read that there are a number of surprisingly common web application vulnerabilities that can be exploited by unsophisticated attackers with easily available tools on the Internet. He has also read that when an organization deploys a web application, they invite the world to send HTTP requests. Attacks buried in these requests sail past firewalls, filters, platform hardening, SSL, and IDS without notice because they are inside legal HTTP requests. Bret is determined to weed out vulnerabilities.   What are some of the common vulnerabilities in web applications that he should be concerned about?
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47. Choose one of the following pseudo codes to describe this statement: "If we have written 200 characters to the buffer variable, the stack should stop because it cannot hold any more data."
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48. Cyber Criminals have long employed the tactic of masking their true identity. In IP spoofing, an attacker gains unauthorized access to a computer or a network by making it appear that a malicious message has come from a trusted machine, by "spoofing" the IP address of that machine.   How would you detect IP spoofing?
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49. The following script shows a simple SQL injection. The script builds an SQL query by concatenating hard-coded strings together with a string entered by the user: The user is prompted to enter the name of a city on a Web form. If she enters Chicago, the query assembled by the script looks similar to the following:   SELECT * FROM OrdersTable WHERE ShipCity = 'Chicago'   How will you delete the OrdersTable from the database using SQL Injection?
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50. What is a sniffing performed on a switched network called?
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51. Consider the following code:   URL:https://www.certified.com/search.pl? text=<script>alert(document.cookie)</script>   If an attacker can trick a victim user to click a link like this, and the Web application does not validate input, then the victim's browser will pop up an alert showing the users current set of cookies. An attacker can do much more damage, including stealing passwords, resetting your home page, or redirecting the user to another Web site.   What is the countermeasure against XSS scripting?
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52. What are the limitations of Vulnerability scanners? (Select 2 answers)
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53. How does traceroute map the route a packet travels from point A to point B?
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54. More sophisticated IDSs look for common shellcode signatures. But even these systems can be bypassed, by using polymorphic shellcode. This is a technique common among virus writers ?it basically hides the true nature of the shellcode in different disguises.   How does a polymorphic shellcode work?
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55. What is the problem with this ASP script (login.asp)?
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56. Which of the following tools would be considered a Signature Integrity Verifier (SIV)?
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57. Google uses a unique cookie for each browser used by an individual user on a computer. This cookie contains information that allows Google to identify records about that user on its database. This cookie is submitted every time a user launches a Google search, visits a site using AdSense etc. The information stored in Google's database, identified by the cookie, includes - Everything you search for using Google - Every web page you visit that has Google Adsense ads   How would you prevent Google from storing your search keywords?
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58. Attackers target HINFO record types stored on a DNS server to enumerate information. These are information records and potential source for reconnaissance. A network administrator has the option of entering host information specifically the CPU type and operating system when creating a new DNS record. An attacker can extract this type of information easily from a DNS server.   Which of the following commands extracts the HINFO record?  
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59. You are the security administrator of Jaco Banking Systems located in Boston. You are setting up e-banking website (https://www.ejacobank.com) authentication system. Instead of issuing banking customer with a single password, you give them a printed list of 100 unique passwords. Each time the customer needs to log into the e-banking system website, the customer enters the next password on the list. If someone sees them type the password using shoulder surfing, MiTM or keyloggers, then no damage is done because the password will not be accepted a second time. Once the list of 100 passwords is almost finished, the system automatically sends out a new password list by encrypted e-mail to the ustomer. You are confident that this security implementation will protect the customer from password abuse.   Two months later, a group of hackers called "HackJihad" found a way to access the one-time password list issued to customers of Jaco Banking Systems. The hackers set up a fake website (https://www.e-jacobank.com) and used phishing attacks to direct ignorant customers to it. The fake website asked users for their e-banking username and password, and the next unused entry from their one-time password sheet. The hackers collected 200 customer's username/passwords this way. They transferred money from the customer's bank account to various offshore accounts.   Your decision of password policy implementation has cost the bank with USD 925,000 to hackers. You immediately shut down the e-banking website while figuring out the next best security solution. What effective security solution will you recommend in this case?
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60. Anonymizer sites access the Internet on your behalf, protecting your personal information from disclosure. An anonymizer protects all of your computer's identifying information while it surfs for you, enabling you to remain at least one step removed from the sites you visit.   You can visit Web sites without allowing anyone to gather information on sites visited by you. Services that provide anonymity disable pop-up windows and cookies, and conceal visitor's IP address.   These services typically use a proxy server to process each HTTP request. When the user requests a Web page by clicking a hyperlink or typing a URL into their browser, the service retrieves and displays the information using its own server. The remote server (where the requested Web page resides) receives information on the anonymous Web surfing service in place of your information.  In which situations would you want to use anonymizer? (Select 3 answers)
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61. Bob has set up three web servers on Windows Server 2008 IIS 7.0. Bob has followed all the recommendations for securing the operating system and IIS. These servers are going to run numerous e-commerce websites that are projected to bring in thousands of dollars a day. Bob is still concerned about the security of these servers because of the potential for financial loss. Bob has asked his company's firewall administrator to set the firewall to inspect all incoming traffic on ports 80 and 443 to ensure that no malicious data is getting into the network. Why will this not be possible?
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62. Dan is conducting penetration testing and has found a vulnerability in a Web Application which gave him the sessionID token via a cross site scripting vulnerability. Dan wants to replay this token. However, the session ID manager (on the server) checks the originating IP address as well. Dan decides to spoof his IP address in order to replay the sessionID. Why do you think Dan might not be able to get an interactive session?  
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63. What port number is used by Kerberos protocol?
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64. Attackers footprint target Websites using Google Hacking techniques. Google hacking is a term that refers to the art of creating complex search engine queries. It detects websites that are vulnerable to numerous exploits and vulnerabilities. Google operators are used to locate specific strings of text within the search results.   The configuration file contains both a username and a password for an SQL database. Most sites with forums run a PHP message base. This file gives you the keys to that forum, including FULL ADMIN access to the database. WordPress uses config.php that stores the database Username and Password.   Which of the below Google search string brings up sites with "config.php" files?      
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65. Syslog is a standard for logging program messages. It allows separation of the software that generates messages from the system that stores them and the software that reports and analyzes them. It also provides devices, which would otherwise be unable to communicate a means to notify administrators of problems or performance. What default port do Syslog daemons listen on?
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66. Lori was performing an audit of her company's internal Sharepoint pages when she came across the following code: What is the purpose of this code?  
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67. TCP/IP Session Hijacking is carried out in which OSI layer?
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68. You want to hide a secret.txt document inside c:\windows\system32\tcpip.dll kernel library using ADS streams. How will you accomplish this?
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69. While performing a ping sweep of a local subnet you receive an ICMP reply of Code 3/Type 13 for all the pings you have sent out. What is the most likely cause of this?
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70. You receive an e-mail with the following text message.   "Microsoft and HP today warned all customers that a new, highly dangerous virus has been discovered which will erase all your files at midnight. If there's a file called hidserv.exe on your computer, you have been infected and your computer is now running a hidden server that allows hackers to access your computer. Delete the file immediately. Please also pass this message to all your friends and colleagues as soon as possible."   You launch your antivirus software and scan the suspicious looking file hidserv.exe located in c:\windows directory and the AV comes out clean meaning the file is not infected. You view the file signature and confirm that it is a legitimate Windows system file "Human Interface Device Service".   What category of virus is this?
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71. Peter extracts the SID list from Windows 2008 Server machine using the hacking tool "SIDExtracter". Here is the output of the SIDs: From the above list identify the user account with System Administrator privileges?
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72. What type of session hijacking attack is shown in the exhibit?
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73. You run nmap port Scan on 10.0.0.5 and attempt to gain banner/server information from services running on ports 21, 110 and 123. Here is the output of your scan results: Which of the following nmap command did you run?
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74. A rootkit is a collection of tools (programs) that enable administrator-level access to a computer. This program hides itself deep into an operating system for malicious activity and is extremely difficult to detect. The malicious software operates in a stealth fashion by hiding its files, processes and registry keys and may be used to create a hidden directory or folder designed to keep out of view from a user's operating system and security software. What privilege level does a rootkit require to infect successfully on a Victim's machine?
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75. Which of the following statements would NOT be a proper definition for a Trojan Horse?
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76. A common technique for luring e-mail users into opening virus-launching attachments is to send messages that would appear to be relevant or important to many of their potential recipients. One way of accomplishing this feat is to make the virus-carrying messages appear to come from some type of business entity retailing sites,UPS, FEDEX, CITIBANK or a major provider of a common service.   Here is a fraudulent e-mail claiming to be from FedEx regarding a package that could not be delivered. This mail asks the receiver to open an attachment in order to obtain the FEDEX tracking number for picking up the package. The attachment contained in this type of e-mail activates a virus. Vendors send e-mails like this to their customers advising them not to open any files attached with the mail, as they do not include attachments.   Fraudulent e-mail and legit e-mail that arrives in your inbox contain the fedex.com as the sender of the mail.   How do you ensure if the e-mail is authentic and sent from fedex.com?
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77. What does ICMP (type 11, code 0) denote?
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78. Vulnerability scanners are automated tools that are used to identify vulnerabilities and misconfigurations of hosts. They also provide information regarding mitigating discovered vulnerabilities. Which of the following statements is incorrect?
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79. Jayden is a network administrator for her company. Jayden wants to prevent MAC spoofing on all the Cisco switches in the network. How can she accomplish this?
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80. Your computer is infected by E-mail tracking and spying Trojan. This Trojan infects the computer with a single file - emos.sys   Which step would you perform to detect this type of Trojan?  
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81. Annie has just succeeded in stealing a secure cookie via a XSS attack. She is able to replay the cookie even while the session is invalid on the server. Why do you think this is possible?
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82. Which type of scan does NOT open a full TCP connection?
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83. In Buffer Overflow exploit, which of the following registers gets overwritten with return address of the exploit code?
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84. Shayla is an IT security consultant, specializing in social engineering and external penetration tests. Shayla has been hired on by Treks Avionics, a subcontractor for the Department of Defense. Shayla has been given authority to perform any and all tests necessary to audit the company's network security.   No employees for the company, other than the IT director, know about Shayla's work she will be doing. Shayla's first step is to obtain a list of employees through company website contact pages. Then she befriends a female employee of the company through an online chat website. After meeting with the female employee numerous times, Shayla is able to gain her trust and they become friends. One day, Shayla steals the employee's access badge and uses it to gain unauthorized access to the Treks Avionics offices.   What type of insider threat would Shayla be considered?
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85. How do you defend against DHCP Starvation attack?
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86. You want to capture Facebook website traffic in Wireshark. What display filter should you use that shows all TCP packets that contain the word 'facebook'?
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87. What file system vulnerability does the following command take advantage of? type c:\anyfile.exe > c:\winnt\system32\calc.exe:anyfile.exe
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88. How many bits encryption does SHA-1 use?
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89. Maintaining a secure Web server requires constant effort, resources, and vigilance from an organization.  Securely administering a Web server on a daily basis is an essential aspect of Web server security.   Maintaining the security of a Web server will usually involve the following steps:   1. Configuring, protecting, and analyzing log files 2. Backing up critical information frequently 3. Maintaining a protected authoritative copy of the organization's Web content 4. Establishing and following procedures for recovering from compromise 5. Testing and applying patches in a timely manner 6. Testing security periodically.   In which step would you engage a forensic investigator?
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90. What type of Virus is shown here?
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91. What is the correct command to run Netcat on a server using port 56 that spawns command shell when connected?
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92. What type of Trojan is this?
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93. XSS attacks occur on Web pages that do not perform appropriate bounds checking on data entered by users. Characters like < > that mark the beginning/end of a tag should be converted into HTML entities. What is the correct code when converted to html entities?      
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94. How would you describe an attack where an attacker attempts to deliver the payload over multiple packets over long periods of time with the purpose of defeating simple pattern matching in IDS systems without session reconstruction? A characteristic of this attack would be a continuous stream of small packets.
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95. Most cases of insider abuse can be traced to individuals who are introverted, incapable of dealing with stress or conflict, and frustrated with their job, office politics, and lack of respect or promotion. Disgruntled employees may pass company secrets and intellectual property to competitors for monitory benefits.    Here are some of the symptoms of a disgruntled employee: Frequently leaves work early, arrive late or call in sick Spends time surfing the Internet or on the phone Responds in a confrontational, angry, or overly aggressive way to simple requests or comments Always negative; finds fault with everything These disgruntled employees are the biggest threat to enterprise security. How do you deal with these threats? (Select 2 answers)
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96. How do you defend against ARP Spoofing? Select three.
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97. You just purchased the latest DELL computer, which comes pre-installed with Windows 7, McAfee antivirus software and a host of other applications. You want to connect Ethernet wire to your cable modem and start using the computer immediately. Windows is dangerously insecure when unpacked from the box, and there are a few things that you must do before you use it.
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98. How do you defend against Privilege Escalation?  (Choose all that apply)
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99. The SYN flood attack sends TCP connections requests faster than a machine can process them.   - Attacker creates a random source address for each packet - SYN flag set in each packet isa request to open a new connection to the server from the spoofed IP address - Victim responds to spoofed IP address, then waits for confirmation that never arrives (timeout wait is about 3 minutes) - Victim's connection table fills up waiting for replies andignores new connections - Legitimate users are ignored and will not be able to access the server How do you protect your network against SYN Flood attacks? (Choose all that apply)
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100. Which of the following statement correctly defines ICMP Flood Attack? (Select 2 answers)
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This attack technique is used when a Web application is vulnerable to...
Which Steganography technique uses Whitespace to hide secret messages?
This attack uses social engineering techniques to trick users into...
This type of Port Scanning technique splits TCP header into several...
Jason works in the sales and marketing department for a very large...
Jack Hacker wants to break into Brown Co.'s computers and obtain...
TCP SYN Flood attack uses the three-way handshake mechanism. ...
What sequence of packets is sent during the initial TCP three-way...
In Trojan terminology, what is required to create the executable file...
What type of attack is shown in the following diagram?
Lori is a Certified Ethical Hacker as well as a Certified Hacking...
Which of the following type of scanning utilizes automated process of...
Bob waits near a secured door, holding a box. He waits until an...
Which of the following countermeasure can specifically protect against...
Jimmy, an attacker, knows that he can take advantage of poorly...
If a competitor wants to cause damage to your organization, steal...
In TCP communications there are 8 flags; FIN, SYN, RST, PSH, ACK, URG,...
This IDS defeating technique works by splitting a datagram (or packet)...
Web servers often contain directories that do not need to be indexed....
SNMP is a connectionless protocol that uses UDP instead of TCP packets...
Jake works as a system administrator at Acme Corp. Jason, an...
Joel and her team have been going through tons of garbage, recycled...
SYN Flood is a DOS attack in which an attacker deliberately violates...
What is War Dialing?
An attacker finds a web page for a target organization that supplies...
What type of port scan is shown below?
Stephanie works as a records clerk in a large office building in...
Attacking well-known system defaults is one of the most common hacker...
Stephanie works as senior security analyst for a manufacturing company...
In the context of password security: a simple dictionary attack...
An attacker has successfully compromised a remote computer. Which of...
Ursula is a college student at a University in Amsterdam. Ursula...
BankerFox is a Trojan that is designed to steal users' banking...
In the context of Trojans, what is the definition of a Wrapper?
Neil is a network administrator working in Istanbul. Neil wants to...
In what stage of Virus life does a stealth virus gets activated with...
One of the effective DoS/DDoS countermeasures is 'Throttling'....
This tool is widely used for ARP Poisoning attack. Name the tool.
David is a security administrator working in Boston. David has been...
Fake Anti-Virus, is one of the most frequently encountered and...
In which part of OSI model does ARP Poisoning occurs?
What does FIN in TCP flag define?
Steven the hacker realizes the network administrator of Acme...
You are the Security Administrator of Xtrinity, Inc. You write...
Which type of hacker represents the highest risk to your network?
Bret is a web application administrator and has just read that there...
Choose one of the following pseudo codes to describe this statement: ...
Cyber Criminals have long employed the tactic of masking their true...
The following script shows a simple SQL injection. The script builds...
What is a sniffing performed on a switched network called?
Consider the following code: ...
What are the limitations of Vulnerability scanners? (Select 2 answers)
How does traceroute map the route a packet travels from point A to...
More sophisticated IDSs look for common shellcode signatures. But even...
What is the problem with this ASP script (login.asp)?
Which of the following tools would be considered a Signature Integrity...
Google uses a unique cookie for each browser used by an individual...
Attackers target HINFO record types stored on a DNS server to...
You are the security administrator of Jaco Banking Systems located in...
Anonymizer sites access the Internet on your behalf, protecting your...
Bob has set up three web servers on Windows Server 2008 IIS 7.0. Bob...
Dan is conducting penetration testing and has found a vulnerability in...
What port number is used by Kerberos protocol?
Attackers footprint target Websites using Google Hacking techniques....
Syslog is a standard for logging program messages. It allows...
Lori was performing an audit of her company's internal Sharepoint...
TCP/IP Session Hijacking is carried out in which OSI layer?
You want to hide a secret.txt document inside...
While performing a ping sweep of a local subnet you receive an ICMP...
You receive an e-mail with the following text message. ...
Peter extracts the SID list from Windows 2008 Server machine using the...
What type of session hijacking attack is shown in the exhibit?
You run nmap port Scan on 10.0.0.5 and attempt to gain banner/server...
A rootkit is a collection of tools (programs) that enable...
Which of the following statements would NOT be a proper definition for...
A common technique for luring e-mail users into opening...
What does ICMP (type 11, code 0) denote?
Vulnerability scanners are automated tools that are used to identify...
Jayden is a network administrator for her company. Jayden wants to...
Your computer is infected by E-mail tracking and spying Trojan. This...
Annie has just succeeded in stealing a secure cookie via a XSS attack....
Which type of scan does NOT open a full TCP connection?
In Buffer Overflow exploit, which of the following registers gets...
Shayla is an IT security consultant, specializing in social...
How do you defend against DHCP Starvation attack?
You want to capture Facebook website traffic in Wireshark. What...
What file system vulnerability does the following command take...
How many bits encryption does SHA-1 use?
Maintaining a secure Web server requires constant effort, resources,...
What type of Virus is shown here?
What is the correct command to run Netcat on a server using port 56...
What type of Trojan is this?
XSS attacks occur on Web pages that do not perform appropriate bounds...
How would you describe an attack where an attacker attempts to deliver...
Most cases of insider abuse can be traced to individuals who are...
How do you defend against ARP Spoofing? Select three.
You just purchased the latest DELL computer, which comes pre-installed...
How do you defend against Privilege Escalation?  (Choose all that...
The SYN flood attack sends TCP connections requests faster than a...
Which of the following statement correctly defines ICMP Flood Attack?...
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