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Which of the following levels of algorithms does Public Key Infrastructure (PKI) use?
Which system consists of a publicly available set of databases that contain domain name registration contact information?
Firewalk has just completed the second phase (the scanning phase) and a technician receives the output shown below. What conclusions can be drawn based on these scan results? TCP port 21 – no response TCP port 22 – no response TCP port 23 – Time-to-live exceeded
Bob reads an article about how insecure wireless networks can be. He gets approval from his management to implement a policy of not allowing any wireless devices on the network. What other steps does Bob have to take in order to successfully implement this? (Select 2 answer.)
John wishes to install a new application onto his Windows 2000 server.
He wants to ensure that any application he uses has not been Trojaned.
What can he do to help ensure this?
Exhibit:
Based on the following extract from the log of a compromised machine, what is the hacker really trying to steal?
A hacker is attempting to use nslookup to query Domain Name Service (DNS). The hacker uses the nslookup interactive mode for the search. Which command should the hacker type into the command shell to request the appropriate records?
Which vital role does the U.S. Computer Security Incident Response Team (CSIRT) provide?
Which of the following identifies the three modes in which Snort can be configured to run?
Passive reconnaissance involves collecting information through which of the following?
You are the security administrator for a large network. You want to prevent attackers from running any sort of traceroute into your DMZ and discovering the internal structure of publicly accessible areas of the network. How can you achieve this?
Finding tools to run dictionary and brute forcing attacks against FTP and Web servers is an easy task for hackers. They use tools such as arhontus or brutus to break into remote servers.
A command such as this, will attack a given 10.0.0.34 FTP and Telnet servers simultaneously with a list of passwords and a single login namE. linksys. Many FTP-specific password-guessing tools are also available from major security sites.
What defensive measures will you take to protect your network from these attacks?
Which of the following represents the initial two commands that an IRC client sends to join an IRC network?
You are a Administrator of Windows server. You want to find the port number for POP3. What file would you find the information in and where?
Select the best answer.
In this type of Man-in-the-Middle attack, packets and authentication tokens are captured using a sniffer. Once the relevant information is extracted, the tokens are placed back on the network to gain access.
Attackers can potentially intercept and modify unsigned SMB packets, modify the traffic and forward it so that the server might perform undesirable actions. Alternatively, the attacker could pose as the server or client after a legitimate authentication and gain unauthorized access to data. Which of the following is NOT a means that can be used to minimize or protect against such an attack?
One of the ways to map a targeted network for live hosts is by sending an ICMP ECHO request to the broadcast or the network address. The request would be broadcasted to all hosts on the targeted network. The live hosts will send an ICMP ECHO Reply to the attacker's source IP address.
You send a ping request to the broadcast address 192.168.5.255.
There are 40 computers up and running on the target network. Only 13 hosts send a reply while others do not. Why?
Eric has discovered a fantastic package of tools named Dsniff on the Internet. He has learnt to use these tools in his lab and is now ready for real world exploitation. He was able to effectively intercept communications between the two entities and establish credentials with both sides of the connections. The two remote ends of the communication never notice that Eric is relaying the information between the two.
What would you call this attack?
Bob was frustrated with his competitor, Brownies Inc., and decided to launch an attack that would result in serious financial losses. He planned the attack carefully and carried out the attack at the appropriate moment.
Meanwhile, Trent, an administrator at Brownies Inc., realized that their main financial transaction server had been attacked. As a result of the attack, the server crashed and Trent needed to reboot the system, as no one was able to access the resources of the company. This process involves human interaction to fix it.
What kind of Denial of Service attack was best illustrated in the scenario above?
John the hacker is sniffing the network to inject ARP packets. He injects broadcast frames onto the wire to conduct MiTM attack. What is the destination MAC address of a broadcast frame?
Blane is a security analyst for a law firm. One of the lawyers needs to send out an email to a client but he wants to know if the email is forwarded on to any other recipients. The client is explicitly asked not to re-send the email since that would be a violation of the lawyer's and client's agreement for this particular case. What can Blane use to accomplish this?
Gerald, the Systems Administrator for Hyped Enterprises, has just discovered that his network has been breached by an outside attacker. After performing routine maintenance on his servers, he discovers numerous remote tools were installed that no one claims to have knowledge of in his department. Gerald logs onto the management console for his IDS and discovers an unknown IP address that scanned his network constantly for a week and was able to access his network through a high-level port that was not closed. Gerald traces the IP address he found in the IDS log to a proxy server in Brazil. Gerald calls the company that owns the proxy server and after searching through their logs, they trace the source to another proxy server in Switzerland. Gerald calls the company in Switzerland that owns the proxy server and after scanning through the logs again, they trace the source back to a proxy server in China. What proxy tool has Gerald's attacker used to cover their tracks?
What do you conclude from the nmap results below?
Staring nmap V. 3.10ALPHA0 (www.insecure.org/map/)
(The 1592 ports scanned but not shown below are in state: closed)
Port State Service
21/tcp open ftp
25/tcp open smtp
80/tcp open http
443/tcp open https
Remote operating system guess: Too many signatures match the reliability guess the OS. Nmap run completed – 1 IP address (1 host up) scanned in 91.66 seconds
Tess King is making use of Digest Authentication for her Web site. Why is this considered to be more secure than Basic authentication?
Kevin sends an email invite to Chris to visit a forum for security professionals. Chris clicks on the link in the email message and is taken to a web based bulletin board. Unknown to Chris, certain functions are executed on his local system under his privileges, which allow Kevin access to information used on the BBS. However, no executables are downloaded and run on the local system. What would you term this attack?
You want to use netcat to generate huge amount of useless network data continuously for various performance testing between 2 hosts.
Which of the following commands accomplish this?
A hacker, who posed as a heating and air conditioning specialist, was able to install a sniffer program in a switched environment network. Which attack could the hacker use to sniff all of the packets in the network?
A company has made the decision to host their own email and basic web services. The administrator needs to set up the external firewall to limit what protocols should be allowed to get to the public part of the company's network. Which ports should the administrator open? (Choose three.)
Bob is acknowledged as a hacker of repute and is popular among visitors of “underground” sites. Bob is willing to share his knowledge with those who are willing to learn, and many have expressed their interest in learning from him. However, this knowledge has a risk associated with it, as it can be used for malevolent attacks as well.
In this context, what would be the most affective method to bridge the knowledge gap between the “black” hats or crackers and the “white” hats or computer security professionals? (Choose the test answer)
Sandra is the security administrator of XYZ.com. One day she notices that the XYZ.com Oracle database server has been compromised and customer information along with financial data has been stolen. The financial loss will be estimated in millions of dollars if the database gets into the hands of competitors. Sandra wants to report this crime to the law enforcement agencies immediately.
Which organization coordinates computer crime investigations throughout the United States?
The Open Web Application Security Project (OWASP) testing methodology addresses the need to secure web applications by providing which one of the following services?
Which of the following describes the characteristics of a Boot Sector Virus?
A hacker is attempting to see which IP addresses are currently active on a network. Which NMAP switch would the hacker use?
Which set of access control solutions implements two-factor authentication?
Jason's Web server was attacked by a trojan virus. He runs protocol analyzer and notices that the trojan communicates to a remote server on the Internet. Shown below is the standard "hexdump" representation of the network packet, before being decoded. Jason wants to identify the trojan by looking at the destination port number and mapping to a trojan-port number database on the Internet. Identify the remote server's port number by decoding the packet?
What did the following commands determine?
C: user2sid \earth guest
S-1-5-21-343818398-789336058-1343024091-501
C:sid2user 5 21 343818398 789336058 1343024091 500
Name is Joe
Domain is EARTH
You work as security technician at XYZ.com. While doing web application testing, you might be required to look through multiple web pages online which can take a long time. Which of the processes listed below would be a more efficient way of doing this type of validation?
Clive has been hired to perform a Black-Box test by one of his clients.
How much information will Clive obtain from the client before commencing his test?
Bubba has just accessed he preferred ecommerce web site and has spotted an item that he would like to buy. Bubba considers the price a bit too steep. He looks at the source code of the webpage and decides to save the page locally, so that he can modify the page variables. In the context of web application security, what do you think Bubba has changes?
You find the following entries in your web log. Each shows attempted access to either root.exe or cmd.exe.
What caused this?
Which is the right sequence of packets sent during the initial TCP three way handshake?
Bob is a very security conscious computer user. He plans to test a site that is known to have malicious applets, code, and more. Bob always make use of a basic Web Browser to perform such testing.
Which of the following web browser can adequately fill this purpose?
Samantha was hired to perform an internal security test of XYZ. She quickly realized that all networks are making use of switches instead of traditional hubs. This greatly limits her ability to gather information through network sniffing.
Which of the following techniques can she use to gather information from the switched network or to disable some of the traffic isolation features of the switch? (Choose two)
Jackson discovers that the wireless AP transmits 128 bytes of plaintext, and the station responds by encrypting the plaintext. It then transmits the resulting ciphertext using the same key and cipher that are used by WEP to encrypt subsequent network traffic. What authentication mechanism is being followed here?
A penetration tester is attempting to scan an internal corporate network from the internet without alerting the border sensor. Which is the most efficient technique should the tester consider using?
Several of your co-workers are having a discussion over the etc/passwd file. They are at odds over what types of encryption are used to secure Linux passwords.(Choose all that apply.
What is the most secure way to mitigate the theft of corporate information from a laptop that was left in a hotel room?
WinDump is a popular sniffer which results from the porting to Windows of TcpDump for Linux. What library does it use?
What is the correct PCAP filter to capture all TCP traffic going to or from host 192.168.0.125 on port 25?
To send a PGP encrypted message, which piece of information from the recipient must the sender have before encrypting the message?
Which types of detection methods are employed by Network Intrusion Detection Systems (NIDS)? (Choose two.)
Smart cards use which protocol to transfer the certificate in a secure manner?
Which of the following settings enables Nessus to detect when it is sending too many packets and the network pipe is approaching capacity?
Which of the following ensures that updates to policies, procedures, and configurations are made in a controlled and documented fashion?
Snort has been used to capture packets on the network. On studying the packets, the penetration tester finds it to be abnormal. If you were the penetration tester, why would you find this abnormal?
What is odd about this attack? (Choose the most appropriate statement)
An Nmap scan shows the following open ports, and nmap also reports that the OS guessing results to match too many signatures hence it cannot reliably be identified:
21 ftp
23 telnet
80 http
443 https
What does this suggest?
Which results will be returned with the following Google search query?
site:target.com -site:Marketing.target.com accounting
Exhibit
Joe Hacker runs the hping2 hacking tool to predict the target host’s sequence numbers in one of the hacking session.
What does the first and second column mean? Select two.
In keeping with the best practices of layered security, where are the best places to place intrusion detection/intrusion prevention systems? (Choose two.)
Network Administrator Patricia is doing an audit of the network. Below are some of her findings concerning DNS. Which of these would be a cause for alarm?
Select the best answer.
__________ is found in all versions of NTFS and is described as the ability to fork file data into existing files without affecting their functionality, size, or display to traditional file browsing utilities like dir or Windows Explorer
While investigating a claim of a user downloading illegal material, the investigator goes through the files on the suspect's workstation. He comes across a file that is just called "file.txt" but when he opens it, he finds the following:
What can he infer from this file?
Which of the following ICMP message types are used for destinations unreachables?
You have initiated an active operating system fingerprinting attempt with nmap against a target system:
What operating system is the target host running based on the open ports shown above?
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?
Consider the following code:
URL:http://www.certified.com/search.pl?
text=
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?
A certified ethical hacker (CEH) completed a penetration test of the main headquarters of a company almost two months ago, but has yet to get paid. The customer is suffering from financial problems, and the CEH is worried that the company will go out of business and end up not paying. What actions should the CEH take?
For messages sent through an insecure channel, a properly implemented digital signature gives the receiver reason to believe the message was sent by the claimed sender. While using a digital signature, the message digest is encrypted with which key?
In what stage of Virus life does a stealth virus gets activated with the user performing certain actions such as running an infected program?
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?
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?
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 Syslog daemon listens on?
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?
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?
Which of the following statement correctly defines ICMP Flood Attack? (Select 2 answers)
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?
Which of the following countermeasure can specifically protect against both the MAC Flood and MAC Spoofing attacks?
When analyzing the IDS logs, the system administrator notices connections from outside of the LAN have been sending packets where the Source IP address and Destination IP address are the same. There have been no alerts sent via email or logged in the IDS. Which type of an alert is this?
A large company intends to use Blackberry for corporate mobile phones and a security analyst is assigned to evaluate the possible threats. The analyst will use the Blackjacking attack method to demonstrate how an attacker could circumvent perimeter defenses and gain access to the corporate network. What tool should the analyst use to perform a Blackjacking attack?
Which of the following examples best represents a logical or technical control?
The network administrator for a company is setting up a website with e-commerce capabilities. Packet sniffing is a concern because credit card information will be sent electronically over the Internet. Customers visiting the site will need to encrypt the data with HTTPS. Which type of certificate is used to encrypt and decrypt the data?
A pentester is using Metasploit to exploit an FTP server and pivot to a LAN. How will the pentester pivot using Metasploit?
Which statement best describes a server type under an N-tier architecture?
Which security strategy requires using several, varying methods to protect IT systems against attacks?
John the Ripper is a technical assessment tool used to test the weakness of which of the following?
You want to perform advanced SQL Injection attack against a vulnerable website. You are unable to perform command shell hacks on this server. What must be enabled in SQL Server to launch these attacks?
Which tool is used to automate SQL injections and exploit a database by forcing a given web application to connect to another database controlled by a hacker?
A company is using Windows Server 2003 for its Active Directory (AD). What is the most efficient way to crack the passwords for the AD users?
John is the network administrator of XSECURITY systems. His network was recently compromised. He analyzes the log files to investigate the attack. Take a look at the following Linux log file snippet. The hacker compromised and "owned" a Linux machine. What is the hacker trying to accomplish here?
An attacker is attempting to telnet into a corporation's system in the DMZ. The attacker doesn't want to get caught and is spoofing his IP address. After numerous tries he remains unsuccessful in connecting to the system. The attacker rechecks that the target system is actually listening on Port 23 and he verifies it with both nmap and hping2. He is still unable to connect to the target system. What could be the reason?
What command would you type to OS fingerprint a server using the command line?
Jane wishes to forward X-Windows traffic to a remote host as well as POP3 traffic. She is worried that adversaries might be monitoring the communication link and could inspect captured traffic. She would like to tunnel the information to the remote end but does not have VPN capabilities to do so. Which of the following tools can she use to protect the link?
What is the main reason the use of a stored biometric is vulnerable to an attack?
Which of the following parameters enables NMAP's operating system detection feature?
Which solution can be used to emulate computer services, such as mail and ftp, and to capture information related to logins or actions?
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 receive an e-mail like the one shown below. When you click on the link contained in the mail, you are redirected to a website seeking you to download free Anti-Virus software.
Dear valued customers,
We are pleased to announce the newest version of Antivirus 2010 for Windows which will probe you with total security against the latest spyware, malware, viruses, Trojans and other online threats. Simply visit the link below and enter your antivirus code:
Antivirus code: 5014
http://www.juggyboy/virus/virus.html
Thank you for choosing us, the worldwide leader Antivirus solutions.
Mike Robertson
PDF Reader Support
Copyright Antivirus 2010 ?All rights reserved
If you want to stop receiving mail, please go to:
http://www.juggyboy.com
or you may contact us at the following address: Media Internet Consultants, Edif. Neptuno, Planta Baja, Ave. Ricardo J. Alfaro, Tumba Muerto, n/a Panama
How will you determine if this is Real Anti-Virus or Fake Anti-Virus website?
You establish a new Web browser connection to Google. Since a 3-way handshake is required for any TCP connection, the following actions will take place.
Which of the following packets represent completion of the 3-way handshake?
TESTED 19 Apr 2024
