A zone file consists of which of the following Resource Records (RRs)?
Morris, a professional hacker, performed a vulnerability scan on a target organization by sniffing the traffic on the network lo identify the active systems, network services, applications, and vulnerabilities. He also obtained the list of the users who are currently accessing the network. What is the type of vulnerability assessment that Morris performed on the target organization?
Which Nmap option would you use if you were not concerned about being detected and wanted to perform a very fast scan?
Rebecca, a security professional, wants to authenticate employees who use web services for safe and secure communication. In this process, she employs a component of the Web Service Architecture, which is an extension of SOAP, and it can maintain the integrity and confidentiality of SOAP messages.
Which of the following components of the Web Service Architecture is used by Rebecca for securing the communication?
Sam is working as a system administrator In an organization. He captured the principal characteristics of a vulnerability and produced a numerical score to reflect Its severity using CVSS v3.0 to property assess and prioritize the organization's vulnerability management processes. The base score that Sam obtained after performing cvss rating was 4.0. What is the CVSS severity level of the vulnerability discovered by Sam in the above scenario?
An ethical hacker is testing the security of a website's database system against SQL Injection attacks. They discover that the IDS has a strong signature detection mechanism to detect typical SQL injection patterns.
Which evasion technique can be most effectively used to bypass the IDS signature detection while performing a SQL Injection attack?
An ethical hacker is conducting a penetration test on a company’s network with full knowledge and permission from the organization. What is this type of hacking called?
A security analyst is preparing to analyze a potentially malicious program believed to have infiltrated an organization's network. To ensure the safety and integrity of the production environment, the analyst decided to use a sheep dip computer for the analysis. Before initiating the analysis, what key step should the analyst
take?
Which of the following is the primary goal of ethical hacking?
Which of the following statements is FALSE with respect to Intrusion Detection Systems?
ViruXine.W32 virus hides its 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) does not change at all.
Here is a section of the virus code (refer to image), where the loop performs XOR encryption and changes the way the code looks every time it is executed.
What is this technique called?
When a normal TCP connection starts, a destination host receives a SYN (synchronize/start) packet from a source host and sends back a SYN/ACK (synchronize acknowledge). The destination host must then hear an ACK (acknowledge) of the SYN/ACK before the connection is established. This is referred to as the "TCP three-way handshake." While waiting for the ACK to the SYN ACK, a connection queue of finite size on the destination host keeps track of connections waiting to be completed. This queue typically empties quickly since the ACK is expected to arrive a few milliseconds after the SYN ACK.
How would an attacker exploit this design by launching TCP SYN attack?
You have been authorized to perform a penetration test against a website. You want to use Google dorks to footprint the site but only want results that show file extensions. What Google dork operator would you use?
While scanning with Nmap, Patin found several hosts which have the IP ID of incremental sequences. He then decided to conduct: nmap -Pn -p- -si kiosk.adobe.com kiosk.adobe.com is the host with incremental IP ID sequence. What is the purpose of using "-si" with Nmap?
Why should the security analyst disable/remove unnecessary ISAPI filters?
A company’s policy requires employees to perform file transfers using protocols which encrypt traffic. You suspect some employees are still performing file transfers using unencrypted protocols because the employees do not like changes. You have positioned a network sniffer to capture traffic from the laptops used by employees in the data ingest department. Using Wireshark to examine the captured traffic, which command can be used as display filter to find unencrypted file transfers?
what is the correct way of using MSFvenom to generate a reverse TCP shellcode for windows?
Which of the following Metasploit post-exploitation modules can be used to escalate privileges on Windows systems?
What would you enter if you wanted to perform a stealth scan using Nmap?
Which of these is capable of searching for and locating rogue access points?
E-mail scams and mail fraud are regulated by which of the following?
During the process of encryption and decryption, what keys are shared?
Attacker Lauren has gained the credentials of an organization's internal server system, and she was often logging in during irregular times to monitor the network activities. The organization was skeptical about the login times and appointed security professional Robert to determine the issue. Robert analyzed the compromised device to find incident details such as the type of attack, its severity, target, impact, method of propagation, and vulnerabilities exploited. What is the incident handling and response (IH&R) phase, in which Robert has determined these issues?
What kind of detection technique is used in antivirus software that collects data from multiple protected systems and performs analysis in a cloud-based environment?
During a security assessment, an attacker identifies a flaw in a multi-user file system. The system first verifies access rights to a temporary file created by a user. However, immediately after this verification, and before the file is processed, the attacker manages to swap the original file with a malicious version. This manipulation happens in the brief interval between the system's access verification and the moment it handles the file, resulting in the malicious file being treated as legitimate. Which vulnerability is the attacker exploiting?
An ethical hacker is hired to evaluate the defenses of an organization's database system which is known to employ a signature-based IDS. The hacker knows that some SQL Injection evasion techniques may allow him
to bypass the system's signatures. During the operation, he successfully retrieved a list of usernames from the database without triggering an alarm by employing an advanced evasion technique. Which of the following
could he have used?
You are tasked to perform a penetration test. While you are performing information gathering, you find an employee list in Google. You find the receptionist’s email, and you send her an email changing the source email to her boss’s email (boss@company). In this email, you ask for a pdf with information. She reads your email and sends back a pdf with links. You exchange the pdf links with your malicious links (these links contain malware) and send back the modified pdf, saying that the links don’t work. She reads your email, opens the links, and her machine gets infected. You now have access to the company network. What testing method did you use?
PGP, SSL, and IKE are all examples of which type of cryptography?
Which rootkit is characterized by its function of adding code and/or replacing some of the operating-system kernel code to obscure a backdoor on a system?
An attacker with access to the inside network of a small company launches a successful STP manipulation attack. What will he do next?
A penetration tester submits altered ciphertexts to a web server and pays close attention to how the server responds. When the server produces different error messages for certain inputs, the tester starts to infer which inputs result in valid internal processing. Which cryptanalytic method is being used in this scenario?
Miley, a professional hacker, decided to attack a target organization's network. To perform the attack, she used a tool to send fake ARP messages over the target network to link her MAC address with the target system's IP address. By performing this, Miley received messages directed to the victim's MAC address and further used the tool to intercept, steal, modify, and block sensitive communication to the target system.
What is the tool employed by Miley to perform the above attack?
Which of the following web vulnerabilities would an attacker be attempting to exploit if they delivered the following input?
The change of a hard drive failure is once every three years. The cost to buy a new hard drive is $300. It will require 10 hours to restore the OS and software to the new hard disk. It will require a further 4 hours to restore the database from the last backup to the new hard disk. The recovery person earns $10/hour. Calculate the SLE, ARO, and ALE. Assume the EF = 1(100%). What is the closest approximate cost of this replacement and recovery operation per year?
What kind of detection techniques is being used in antivirus software that identifies malware by collecting data from multiple protected systems and instead of analyzing files locally it’s made on the provider’s environment?
Which of the following Google advanced search operators helps an attacker in gathering information about websites that are similar to a specified target URL?
Don, a student, came across a gaming app in a third-party app store and Installed it. Subsequently, all the legitimate apps in his smartphone were replaced by deceptive applications that appeared legitimate. He also received many advertisements on his smartphone after Installing the app. What is the attack performed on Don in the above scenario?
A Certified Ethical Hacker (CEH) is given the task to perform an LDAP enumeration on a target system. The system is secured and accepts connections only on secure LDAP. The CEH uses Python for the enumeration process. After successfully installing LDAP and establishing a connection with the target, he attempts to fetch details like the domain name and naming context but is unable to receive the expected response. Considering the circumstances, which of the following is the most plausible reason for this situation?
An attacker, using a rogue wireless AP, performed an MITM attack and injected an HTML code to embed a malicious applet in all HTTP connections. When users accessed any page, the applet ran and exploited many machines. Which one of the following tools the hacker probably used to inject HTML code?
While using your bank’s online servicing you notice the following string in the URL bar:
" &Damount=10980&Camount=21"
You observe that if you modify the Damount & Camount values and submit the request, that data on the web page reflects the changes.
Which type of vulnerability is present on this site?
Given the complexities of an organization’s network infrastructure, a threat actor has exploited an unidentified vulnerability, leading to a major data breach. As a Certified Ethical Hacker (CEH), you are tasked with enhancing
the organization's security stance. To ensure a comprehensive security defense, you recommend a certain security strategy. Which of the following best represents the strategy you would likely suggest and why?
You have compromised a server and successfully gained a root access. You want to pivot and pass traffic undetected over the network and evade any possible Intrusion Detection System. What is the best approach?
Larry, a security professional in an organization, has noticed some abnormalities In the user accounts on a web server. To thwart evolving attacks, he decided to harden the security of the web server by adopting a countermeasures to secure the accounts on the web server.
Which of the following countermeasures must Larry implement to secure the user accounts on the web server?
An IT company has just implemented new security controls to their network and system setup. As a Certified Ethical Hacker, your responsibility is to assess the possible vulnerabilities in the new setup. You are given the information that the network and system are adequately patched with the latest updates, and all employees have gone through recent cybersecurity awareness training. Considering the potential vulnerability sources,
what is the best initial approach to vulnerability assessment?
At what stage of the cyber kill chain theory model does data exfiltration occur?
During a stealth assessment, an attacker exploits intermittent delays in ARP responses from a target system. By injecting fake ARP replies before legitimate ones, the attacker temporarily redirects traffic to their own device, allowing intermittent packet capture. What type of sniffing attack is occurring?
A penetration tester detects malware on a system that secretly records all keystrokes entered by the user. What type of malware is this?
A penetration tester suspects that the web application's "Order History" page is vulnerable to SQL injection because it displays user orders based on an unprotected user ID parameter in the URL. What is the most appropriate approach to test this?
A security analyst is tasked with gathering detailed information about an organization's network infrastructure without making any direct contact that could be logged or trigger alarms. Which method should the analyst use to obtain this information covertly?
A penetration tester discovers that a web application uses unsanitized user input to dynamically generate file paths. The tester identifies that the application is vulnerable to Remote File Inclusion (RFI). Which action should the tester take to exploit this vulnerability?
which of the following protocols can be used to secure an LDAP service against anonymous queries?
You need a tool that can do network intrusion prevention and intrusion detection, function as a network sniffer, and record network activity. What tool would you most likely select?
A Security Engineer at a medium-sized accounting firm has been tasked with discovering how much information can be obtained from the firm’s public-facing web servers. The engineer decides to start by using netcat to port 80.
The engineer receives this output:
HTTP/1.1 200 OK
Server: Microsoft-IIS/6
...
Which of the following is an example of what the engineer performed?
A security analyst uses Zenmap to perform an ICMP timestamp ping scan to acquire information related to the current time from the target host machine.
Which of the following Zenmap options must the analyst use to perform the ICMP timestamp ping scan?
While assessing a web server, a tester sends malformed HTTP requests and compares responses to identify the server type and version. What technique is being employed?
Which of the following steps for risk assessment methodology refers to vulnerability identification?
Which iOS jailbreaking technique patches the kernel during the device boot so that it becomes jailbroken after each successive reboot?
During a security evaluation of a smart agriculture setup, an analyst investigates a cloud-managed irrigation controller. The device is found to transmit operational commands and receive firmware updates over unencrypted HTTP. Additionally, it lacks mechanisms to verify the integrity or authenticity of those updates. This vulnerability could allow an adversary to intercept communications or inject malicious firmware, leading to unauthorized control over the device's behavior or denial of essential functionality. Which IoT threat category does this situation best illustrate?
Peter, a Network Administrator, has come to you looking for advice on a tool that would help him perform SNMP inquiries over the network.
Which of these tools would do the SNMP enumeration he is looking for? Select the best answers.
Which type of malware spreads from one system to another or from one network to another and causes similar types of damage as viruses do to the infected system?
Elliot is exploiting a web application vulnerable to SQL injection. He has introduced conditional timing delays to determine whether the injection is successful.
What type of SQL injection is Elliot most likely performing?
Andrew is an Ethical Hacker who was assigned the task of discovering all the active devices hidden by a restrictive firewall in the IPv4 range in a given target network.
Which of the following host discovery techniques must he use to perform the given task?
This kind of password cracking method uses word lists in combination with numbers and special characters:
Switches maintain a CAM Table that maps individual MAC addresses on the network to physical ports on the switch. In a MAC flooding attack, a switch is fed with many Ethernet frames, each containing different source MAC addresses, by the attacker. Switches have a limited memory for mapping various MAC addresses to physical ports.
What happens when the CAM table becomes full?
jane, an ethical hacker. Is testing a target organization's web server and website to identity security loopholes. In this process, she copied the entire website and its content on a local drive to view the complete profile of the site's directory structure, file structure, external links, images, web pages, and so on. This information helps jane map the website's directories and gain valuable information. What is the attack technique employed by Jane in the above scenario?
A large e-commerce organization is planning to implement a vulnerability assessment solution to enhance its security posture. They require a solution that imitates the outside view of attackers, performs well-organized inference-based testing, scans automatically against continuously updated databases, and supports multiple networks. Given these requirements, which type of vulnerability assessment solution would be most appropriate?
During a red team assessment of an enterprise LAN environment, the tester discovers an access switch that connects multiple internal workstations. The switch has no port security measures in place. To silently intercept communication between different hosts without deploying ARP poisoning or modifying the routing table, the tester launches a MAC flooding attack using the macof utility from the dsniff suite. This command sends thousands of Ethernet frames per minute, each with random, spoofed source MAC addresses. Soon after the flooding begins, the tester puts their network interface into promiscuous mode and starts capturing packets. They observe unicast traffic between internal machines appearing in their packet sniffer—traffic that should have been isolated. What internal switch behavior is responsible for this sudden exposure of isolated traffic?
A system administrator observes that several machines in the network are repeatedly sending out traffic to unknown IP addresses. Upon inspection, these machines were part of a coordinated spam campaign. What is the most probable cause?
A penetration tester is performing an enumeration on a client's network. The tester has acquired permission to perform enumeration activities. They have identified a remote inter-process communication (IPC) share and are trying to collect more information about it. The tester decides to use a common enumeration technique to collect the desired data. Which of the following techniques would be most appropriate for this scenario?
Lewis, a professional hacker, targeted the IoT cameras and devices used by a target venture-capital firm. He used an information-gathering tool to collect information about the IoT devices connected to a network, open ports and services, and the attack surface area. Using this tool, he also generated statistical reports on broad usage patterns and trends. This tool helped Lewis continually monitor every reachable server and device on the Internet, further allowing him to exploit these devices in the network. Which of the following tools was employed by Lewis in the above scenario?
env x='(){ :;};echo exploit' bash –c 'cat /etc/passwd'
What is the Shellshock bash vulnerability attempting to do on a vulnerable Linux host?
During a targeted phishing campaign, a malicious HTML attachment reconstructs malware locally using obfuscated JavaScript without making external network calls, bypassing firewalls and IDS inspection. Which evasion technique is being employed?
You are logged in as a local admin on a Windows 7 system and you need to launch the Computer Management Console from command line.
Which command would you use?
During a red team operation on a segmented enterprise network, the testers discover that the organization’s perimeter devices deeply inspect only connection-initiation packets (such as TCP SYN and HTTP requests). Response packets and ACK packets within established sessions, however, are minimally inspected. The red team needs to covertly transmit payloads to an internal compromised host by blending into normal session traffic. Which approach should they take to bypass these defensive mechanisms?
Which system consists of a publicly available set of databases that contain domain name registration contact information?
Within the context of Computer Security, which of the following statements describes Social Engineering best?
Which of the following tools can be used to perform a zone transfer?
A malicious user has acquired a Ticket Granting Service from the domain controller using a valid user's Ticket Granting Ticket in a Kerberoasting attack. He exhorted the TGS tickets from memory for offline cracking. But the attacker was stopped before he could complete his attack. The system administrator needs to investigate and remediate the potential breach. What should be the immediate step the system administrator takes?
A network admin contacts you. He is concerned that ARP spoofing or poisoning might occur on his network. What are some things he can do to prevent it? Select the best answers.
This is an attack that takes advantage of a web site vulnerability in which the site displays content that includes un-sanitized user-provided data.
What is this attack?
John, a security analyst working for an organization, found a critical vulnerability on the organization's LAN that allows him to view financial and personal information about the rest of the employees. Before reporting the vulnerability, he examines the information shown by the vulnerability for two days without disclosing any information to third parties or other internal employees. He does so out of curiosity about the other employees and may take advantage of this information later.
What would John be considered as?
A penetration tester needs to map open ports on a target network without triggering the organization’s intrusion detection systems (IDS), which are configured to detect standard scanning patterns and abnormal traffic volumes. To achieve this, the tester decides to use a method that leverages a third-party host to obscure the origin of the scan. Which scanning technique should be employed to accomplish this stealthily?
A penetration tester runs a vulnerability scan and identifies an outdated version of a web application running on the company’s server. The scan flags this as a medium-risk vulnerability. What is the best next step for the tester?
A penetration tester observes that traceroutes to various internal devices always show 10.10.10.1 as the second-to-last hop, regardless of the destination subnet. What does this pattern most likely indicate?
Widespread fraud ac Enron. WorldCom, and Tyco led to the creation of a law that was designed to improve the accuracy and accountability of corporate disclosures. It covers accounting firms and third parties that provide financial services to some organizations and came into effect in 2002. This law is known by what acronym?
During an attempt to perform an SQL injection attack, a certified ethical hacker is focusing on the
identification of database engine type by generating an ODBC error. The ethical hacker, after injecting various payloads, finds that the web application returns a standard, generic error message that does not reveal any detailed database information. Which of the following techniques would the hacker consider next to obtain useful information about the underlying database?
Upon establishing his new startup, Tom hired a cloud service provider (CSP) but was dissatisfied with their service and wanted to move to another CSP.
What part of the contract might prevent him from doing so?
What is the purpose of a demilitarized zone on a network?
A penetration tester is assessing a company's HR department for vulnerability to social engineering attacks using knowledge of recruitment and onboarding processes. What is the most effective technique to obtain network access credentials without raising suspicion?
An ethical hacker needs to gather detailed information about a company's internal network without initiating any direct interaction that could be logged or raise suspicion. Which approach should be used to obtain this information covertly?
Heather’s company has decided to use a new customer relationship management tool. After performing the appropriate research, they decided to purchase a subscription to a cloud-hosted solution. The only administrative task that Heather will need to perform is the management of user accounts. The provider will take care of the hardware, operating system, and software administration including patching and monitoring. Which of the following is this type of solution?
A penetration tester is conducting an assessment of a web application for a financial institution. The application uses form-based authentication and does not implement account lockout policies after multiple failed login attempts. Interestingly, the application displays detailed error messages that disclose whether the username or password entered is incorrect. The tester also notices that the application uses HTTP headers to prevent clickjacking attacks but does not implement Content Security Policy (CSP). With these observations, which of the following attack methods would likely be the most effective for the penetration tester to exploit these vulnerabilities and attempt unauthorized access?
A company’s Web development team has become aware of a certain type of security vulnerability in their Web software. To mitigate the possibility of this vulnerability being exploited, the team wants to modify the software requirements to disallow users from entering HTML as input into their Web application.
What kind of Web application vulnerability likely exists in their software?
Which method of password cracking takes the most time and effort?
You are trying to break into a highly secure mainframe system at a bank. Conventional hacking doesn't work because of strong technical defenses. You aim to exploit the human element instead.
How would you proceed?
Nedved is an IT Security Manager of a bank. One day, he found out there is a security breach involving a suspicious connection from the email server to an unknown IP. What is the first thing Nedved should do before contacting the incident response team?
When conducting a penetration test, it is crucial to use all means to get all available information about the target network. One of the ways to do that is by sniffing the network. Which of the following cannot be performed by passive network sniffing?
Which of the following Bluetooth hacking techniques does an attacker use to send messages to users without the recipient’s consent, similar to email spamming?
A security analyst is investigating a potential network-level session hijacking incident. During the investigation, the analyst finds that the attacker has been using a technique in which they injected an authentic-looking reset packet using a spoofed source IP address and a guessed acknowledgment number. As a result, the victim's connection was reset. Which of the following hijacking techniques has the attacker most likely used?
John, a professional hacker, performs a network attack on a renowned organization and gains unauthorized access to the target network. He remains in the network without being detected for a long time and obtains sensitive information without sabotaging the organization. Which of the following attack techniques is used by John?
What port number is used by LDAP protocol?
A penetration tester targets a company's executive assistants by referencing upcoming board meetings in an email requesting access to confidential agendas. What is the most effective social engineering technique to obtain the necessary credentials without raising suspicion?
You are programming a buffer overflow exploit and you want to create a NOP sled of 200 bytes in the program exploit.
What is the hexadecimal value of NOP instruction?
You have been hired as an intern at a start-up company. Your first task is to help set up a basic web server for the company’s new website. The team leader has asked you to make sure the server is secure from common - threats. Based on your knowledge from studying for the CEH exam, which of the following actions should be
your priority to secure the web server?
Josh has finished scanning a network and has discovered multiple vulnerable services. He knows that several of these usually have protections against external sources but are frequently susceptible to internal users. He decides to draft an email, spoof the sender as the internal IT team, and attach a malicious file disguised as a financial spreadsheet. Before Josh sends the email, he decides to investigate other methods of getting the file onto the system. For this particular attempt, what was the last stage of the cyber kill chain that Josh performed?
Roma is a member of a security team. She was tasked with protecting the internal network of an organization from imminent threats. To accomplish this task, Roma fed threat intelligence into the security devices in a digital format to block and identify inbound and outbound malicious traffic entering the organization's network.
Which type of threat intelligence is used by Roma to secure the internal network?
Leverox Solutions hired Arnold, a security professional, for the threat intelligence process. Arnold collected information about specific threats against the organization. From this information, he retrieved contextual information about security events and incidents that helped him disclose potential risks and gain insight into attacker methodologies. He collected the information from sources such as humans, social media, and chat rooms as well as from events that resulted in cyberattacks. In this process, he also prepared a report that includes identified malicious activities, recommended courses of action, and warnings for emerging attacks. What is the type of threat intelligence collected by Arnold in the above scenario?
A penetration tester is assessing an IoT thermostat used in a smart home system. The device communicates with a cloud server for updates and commands. The tester discovers that communication between the device and the cloud server is not encrypted. What is the most effective way to exploit this vulnerability?
Johnson, an attacker, performed online research for the contact details of reputed cybersecurity firms. He found the contact number of sibertech.org and dialed the number, claiming himself to represent a technical support team from a vendor. He warned that a specific server is about to be compromised and requested sibertech.org to follow the provided instructions. Consequently, he prompted the victim to execute unusual commands and install malicious files, which were then used to collect and pass critical Information to Johnson's machine. What is the social engineering technique Steve employed in the above scenario?
When considering how an attacker may exploit a web server, what is web server footprinting?
What type of virus is most likely to remain undetected by antivirus software?
Alex, a cloud security engineer working in Eyecloud Inc. is tasked with isolating applications from the underlying infrastructure and stimulating communication via well-defined channels. For this purpose, he used an open-source technology that helped him in developing, packaging, and running applications; further, the technology provides PaaS through OS-level visualization, delivers containerized software packages, and promotes fast software delivery. What is the cloud technology employed by Alex in the above scenario?
Sam, a professional hacker. targeted an organization with intention of compromising AWS IAM credentials. He attempted to lure one of the employees of the organization by initiating fake calls while posing as a legitimate employee. Moreover, he sent phishing emails to steal the AWS 1AM credentials and further compromise the employee's account. What is the technique used by Sam to compromise the AWS IAM credentials?
What does the following command in netcat do?
nc -l -u -p 55555 < /etc/passwd
What information security law or standard aims at protecting stakeholders and the general public from accounting errors and fraudulent activities within organizations?
What is the following command used for?
net use \target\ipc$ "" /u:""
Your company, SecureTech Inc., is planning to transmit some sensitive data over an unsecured communication channel. As a cyber security expert, you decide to use symmetric key encryption to protect the data. However,
you must also ensure the secure exchange of the symmetric key. Which of the following protocols would you recommend to the team to achieve this?
If a token and 4-digit personal identification number (PIN) are used to access a computer system and the token performs off-line checking for the correct PIN, what type of attack is possible?
Which address translation scheme would allow a single public IP address to always correspond to a single machine on an internal network, allowing "server publishing"?
What hacking attack is challenge/response authentication used to prevent?
Which of the following incident handling process phases is responsible for defining rules, collaborating human workforce, creating a back-up plan, and testing the plans for an organization?
Ben purchased a new smartphone and received some updates on it through the OTA method. He received two messages: one with a PIN from the network operator and another asking him to enter the PIN received from the operator. As soon as he entered the PIN, the smartphone started functioning in an abnormal manner.
What is the type of attack performed on Ben in the above scenario?
Bob, a network administrator at BigUniversity, realized that some students are connecting their notebooks in the wired network to have Internet access. In the university campus, there are many Ethernet ports available for professors and authorized visitors but not for students.
He identified this when the IDS alerted for malware activities in the network. What should Bob do to avoid this problem?
You are a cybersecurity consultant for a global organization. The organization has adopted a Bring Your Own Device (BYOD)policy, but they have recently experienced a phishing incident where an employee's device was compromised. In the investigation, you discovered that the phishing attack occurred through a third-party email app that the employee had installed. Given the need to balance security and user autonomy under the BYOD policy, how should the organization mitigate the risk of such incidents? Moreover, consider a measure that would prevent similar attacks without overly restricting the use of personal devices.
What do Trinoo, TFN2k, WinTrinoo, T-Sight, and Stacheldraht have in common?
Jack, a professional hacker, targets an organization and performs vulnerability scanning on the target web server to identify any possible weaknesses, vulnerabilities, and misconfigurations. In this process, Jack uses an automated tool that eases his work and performs vulnerability scanning to find hosts, services, and other vulnerabilities in the target server.
Which of the following tools is used by Jack to perform vulnerability scanning?
What does a firewall check to prevent particular ports and applications from getting packets into an organization?
What is the proper response for a NULL scan if the port is open?
Susan has attached to her company's network. She has managed to synchronize her boss's sessions with that of the file server. She then intercepted his traffic destined for the server, changed it the way she wanted to and then placed it on the server in his home directory.
What kind of attack is Susan carrying on?
Which of the following tools are used for enumeration? (Choose three.)
You are a penetration tester and are about to perform a scan on a specific server. The agreement that you signed with the client contains the following specific condition for the scan: “The attacker must scan every port on the server several times using a set of spoofed sources IP addresses. ” Suppose that you are using Nmap to perform this scan. What flag will you use to satisfy this requirement?
A penetration tester discovers that a system is infected with malware that encrypts all files and demands payment for decryption. What type of malware is this?
Which type of attack attempts to overflow the content-addressable memory (CAM) table in an Ethernet switch?
Which Metasploit Framework tool can help penetration tester for evading Anti-virus Systems?
Which access control mechanism allows for multiple systems to use a central authentication server (CAS) that permits users to authenticate once and gain access to multiple systems?
in this attack, an adversary tricks a victim into reinstalling an already-in-use key. This is achieved by manipulating and replaying cryptographic handshake messages. When the victim reinstall the key, associated parameters such as the incremental transmit packet number and receive packet number are reset to their initial values. What is this attack called?
The collection of potentially actionable, overt, and publicly available information is known as
Study the snort rule given below and interpret the rule:
alert tcp any any --> 192.168.1.0/24 111 (content:"|00 01 86 a5|"; msg: "mountd access";)
Your organization has signed an agreement with a web hosting provider that requires you to take full responsibility for the maintenance of the cloud-based resources. Which of the following models covers this?
What two conditions must a digital signature meet?
Allen, a professional pen tester, was hired by xpertTech solutWns to perform an attack simul-ation on the organization's network resources. To perform the attack, he took advantage of the NetBIOS API and targeted the NetBIOS service. B/enumerating NetBIOS, he found that port 139 was open and could see the resources that could be accessed or viewed on a remote system. He came across many NetBIOS codes during enumeration.
identify the NetBIOS code used for obtaining the messenger service running for the logged-in user?
A well-resourced attacker intends to launch a highly disruptive DDoS attack against a major online retailer. The attacker aims to exhaust all the network resources while keeping their identity concealed. Their method should be resistant to simple defensive measures such as IP-based blocking. Based on these objectives, which of the following attack strategies would be most effective?
You are performing a penetration test for a client and have gained shell access to a Windows machine on the internal network. You intend to retrieve all DNS records for the internal domain. If the DNS server is at 192.168.10.2 and the domain name is abccorp.local, what command would you type at the nslookup prompt to attempt a zone transfer?
A penetration tester is conducting an external assessment of a corporate web server. They start by accessing and observe multiple Disallow entries that reference directories such as /admin-panel/, /backup/, and /confidentialdocs/. When the tester directly visits these paths via a browser, they find that access is not restricted by authentication and gain access to sensitive files, including server configuration and unprotected credentials. Which stage of the web server attack methodology is demonstrated in this scenario?
An ethical hacker is scanning a target network. They initiate a TCP connection by sending an SYN packet to a target machine and receiving a SYN/ACK packet in response. But instead of completing the three-way handshake with an ACK packet, they send an RST packet. What kind of scan is the ethical hacker likely performing and what is their goal?
During a security assessment of a cloud-hosted application using SOAP-based web services, a red team operator intercepts a valid SOAP request, duplicates the signed message body, inserts it into the same envelope, and forwards it. Due to improper validation, the server accepts the duplicated body and executes unauthorized code. What type of attack does this represent?
You are a Network Security Officer. You have two machines. The first machine (192.168.0.99) has Snort installed, and the second machine (192.168.0.150) has Kiwi Syslog installed. You perform a SYN scan in your network, and you notice that Kiwi Syslog is not receiving the alert message from Snort. You decide to run Wireshark on the Snort machine to check if the messages are going to the Kiwi Syslog machine. What Wireshark filter will show the connections from the Snort machine to Kiwi Syslog machine?
An attacker scans a host with the below command. Which three flags are set?
# nmap -sX host.domain.com
Being a Certified Ethical Hacker (CEH), a company has brought you on board to evaluate the safety measures in place for their network system. The company uses a network time protocol server in the demilitarized zone.
During your enumeration, you decide to run a ntptrace command. Given the syntax: ntptrace [-n] [-m maxhosts] [servername/IP_address], which command usage would best serve your objective to find where the NTP server obtains the time from and to trace the list of NTP servers connected to the network?
During an internal red team engagement, an operator discovers that TCP port 389 is open on a target system identified as a domain controller. To assess the extent of LDAP exposure, the operator runs the command ldapsearch -h
Bill is a network administrator. He wants to eliminate unencrypted traffic inside his company's network. He decides to setup a SPAN port and capture all traffic to the datacenter. He immediately discovers unencrypted traffic in port UDP 161. what protocol is this port using and how can he secure that traffic?
During a penetration testing assignment, a Certified Ethical Hacker (CEH) used a set of scanning tools to create a profile of the target organization. The CEH wanted to scan for live hosts, open ports, and services on a target network. He used Nmap for network inventory and Hping3 for network security auditing. However, he wanted to spoof IP addresses for anonymity during probing. Which command should the CEH use to perform this task?
Shiela is an information security analyst working at HiTech Security Solutions. She is performing service version discovery using Nmap to obtain information about the running services and their versions on a target system.
Which of the following Nmap options must she use to perform service version discovery on the target host?
A penetration tester is tasked with identifying vulnerabilities on a web server running outdated software. The server hosts several web applications and is protected by a basic firewall. Which technique should the tester use to exploit potential server vulnerabilities?
A penetration tester discovers that a web application is using outdated SSL/TLS protocols (TLS 1.0) to secure communication. What is the most effective way to exploit this vulnerability?
in this form of encryption algorithm, every Individual block contains 64-bit data, and three keys are used, where each key consists of 56 bits. Which is this encryption algorithm?
Louis, a professional hacker, had used specialized tools or search engines to encrypt all his browsing activity and navigate anonymously to obtain sensitive/hidden information about official government or federal databases. After gathering the information, he successfully performed an attack on the target government organization without being traced. Which of the following techniques is described in the above scenario?
A penetration tester identifies that a web application's login form is not using secure password hashing mechanisms, allowing attackers to steal passwords if the database is compromised. What is the best approach to exploit this vulnerability?
A penetration tester is assessing an organization's cloud infrastructure and discovers misconfigured IAM policies on storage buckets. The IAM settings grant read and write permissions to any authenticated user. What is the most effective way to exploit this misconfiguration?
This type of injection attack does not show any error message. It is difficult to exploit as it returns information when the application is given SQL payloads that elicit a true or false response from the server. By observing the response, an attacker can extract sensitive information. What type of attack is this?
Your company, Encryptor Corp, is developing a new application that will handle highly sensitive user information. As a cybersecurity specialist, you want to ensure this data is securely stored. The development team proposes a method where data is hashed and then encrypted before storage. However, you want an added layer of security to verify the integrity of the data upon retrieval. Which of the following cryptographic concepts should you propose to the team?
Which of the following is a component of a risk assessment?
In the process of implementing a network vulnerability assessment strategy for a tech company, the security
analyst is confronted with the following scenarios:
1) A legacy application is discovered on the network, which no longer receives updates from the vendor.
2) Several systems in the network are found running outdated versions of web browsers prone to distributed
attacks.
3) The network firewall has been configured using default settings and passwords.
4) Certain TCP/IP protocols used in the organization are inherently insecure.
The security analyst decides to use vulnerability scanning software. Which of the following limitations of vulnerability assessment should the analyst be most cautious about in this context?
Session splicing is an IDS evasion technique in which an attacker delivers data in multiple, small sized packets to the target computer, making it very difficult for an IDS to detect the attack signatures. Which tool can be used to perform session splicing attacks?
As an IT Security Analyst, you’ve been asked to review the security measures of an e-commerce website that relies on a SQL database for storing sensitive customer data. Recently, an anonymous tip has alerted you to a possible threat: a seasoned hacker who specializes in SQL Injection attacks may be targeting your system. The site already employs input validation measures to prevent basic injection attacks, and it blocks any user inputs containing suspicious patterns. However, this hacker is known to use advanced SQL Injection techniques. Given this situation, which of the following strategies would the hacker most likely adopt to bypass your security measures?
A penetration tester is attacking a wireless network running WPA3 encryption. Since WPA3 handshake protections prevent offline brute-force cracking, what is the most effective approach?
SQL injection (SQLi) attacks attempt to inject SQL syntax into web requests, which may Bypass authentication and allow attackers to access and/or modify data attached to a web application.
Which of the following SQLI types leverages a database server's ability to make DNS requests to pass data to an attacker?
Which type of security feature stops vehicles from crashing through the doors of a building?
In this attack, a victim receives an e-mail claiming to be 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, and other personal details. Ignorant users usually fall prey to this scam.
Which of the following statement is incorrect related to this attack?
Samuel, a professional hacker, monitored and Intercepted already established traffic between Bob and a host machine to predict Bob's ISN. Using this ISN, Samuel sent spoofed packets with Bob's IP address to the host machine. The host machine responded with <| packet having an Incremented ISN. Consequently. Bob's connection got hung, and Samuel was able to communicate with the host machine on behalf of Bob. What is the type of attack performed by Samuel in the above scenario?
A penetration tester is assessing a web application that does not properly sanitize user input in the search field. The tester suspects the application is vulnerable to a SQL injection attack. Which approach should the tester take to confirm the vulnerability?
What piece of hardware on a computer's motherboard generates encryption keys and only releases a part of the key so that decrypting a disk on a new piece of hardware is not possible?
From the following table, identify the wrong answer in terms of Range (ft).
Standard
Range (ft)
802.11a
150–150
802.11b
150–150
802.11g
150–150
802.16 (WiMax)
30 miles
You are the lead cybersecurity analyst at a multinational corporation that uses a hybrid encryption system to secure inter-departmental communications. The system uses RSA encryption for key exchange and AES for data encryption, taking advantage of the strengths of both asymmetric and symmetric encryption. Each RSA key pair has a size of 'n' bits, with larger keys providing more security at the cost of slower performance. The
time complexity of generating an RSA key pair is O(n*2), and AES encryption has a time complexity of O(n). An attacker has developed a quantum algorithm with time complexity O((log n)*2) to crack RSA encryption. Given *n=4000' and variable ‘AES key size’, which scenario is likely to provide the best balance of security and
performance? which scenario would provide the best balance of security and performance?
A user on your Windows 2000 network has discovered that he can use L0phtCrack to sniff the SMB exchanges which carry user logons. The user is plugged into a hub with 23 other systems.
However, he is unable to capture any logons though he knows that other users are logging in.
What do you think is the most likely reason behind this?
John, a professional hacker, decided to use DNS to perform data exfiltration on a target network, in this process, he embedded malicious data into the DNS protocol packets that even DNSSEC cannot detect. Using this technique. John successfully injected malware to bypass a firewall and maintained communication with the victim machine and C&C server. What is the technique employed by John to bypass the firewall?
You are the chief security officer at AlphaTech, a tech company that specializes in data storage solutions. Your company is developing a new cloud storage platform where users can store their personal files. To ensure data security, the development team is proposing to use symmetric encryption for data at rest. However, they are unsure of how to securely manage and distribute the symmetric keys to users. Which of the following strategies
would you recommend to them?
The security team of Debry Inc. decided to upgrade Wi-Fi security to thwart attacks such as dictionary attacks and key recovery attacks. For this purpose, the security team started implementing cutting-edge technology that uses a modern key establishment protocol called the simultaneous authentication of equals (SAE), also known as dragonfly key exchange, which replaces the PSK concept.
What is the Wi-Fi encryption technology implemented by Debry Inc.?
#!/usr/bin/python
import socket
buffer=["A"]
counter=50
while len(buffer)<=100:
buffer.append("A"*counter)
counter=counter+50
commands=["HELP","STATS","RTIME","LTIME","SRUN","TRUN","GMON","GDOG","KSTET","GTER","HTER","LTER","KSTAN"]
for command in commands:
for buffstring in buffer:
print "Exploiting " + command + ": " + str(len(buffstring))
s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('127.0.0.1', 9999))
s.recv(50)
s.send(command + buffstring)
s.close()
What is the code written for?
An ethical hacker is hired to conduct a comprehensive network scan of a large organization that strongly suspects potential intrusions into their internal systems. The hacker decides to employ a combination of scanning tools to obtain a detailed understanding of the network. Which sequence of actions would provide the most comprehensive information about the network's status?
What would be the purpose of running "wget 192.168.0.15 -q -S" against a web server?
You went to great lengths to install all the necessary technologies to prevent hacking attacks, such as expensive firewalls, antivirus software, anti-spam systems, and intrusion detection/prevention tools in your company's network. You are confident that hackers will never be able to gain access. Your peer, Peter Smith, disagrees and says the presence of a “weakest link” still exposes the network.
What is Peter Smith talking about?
Joel, a professional hacker, targeted a company and identified the types of websites frequently visited by its employees. Using this information, he searched for possible loopholes in these websites and injected a malicious script that can redirect users from the web page and download malware onto a victim's machine. Joel waits for the victim to access the infected web application so as to compromise the victim's machine. Which of the following techniques is used by Joel in the above scenario?
You are tasked to configure the DHCP server to lease the last 100 usable IP addresses in subnet to. 1.4.0/23. Which of the following IP addresses could be teased as a result of the new configuration?
When you are getting information about a web server, it is very important to know the HTTP Methods (GET, POST, HEAD, PUT, DELETE, TRACE) that are available because there are two critical methods (PUT and DELETE). PUT can upload a file to the server and DELETE can delete a file from the server. You can detect all these methods (GET, POST, HEAD, DELETE, PUT, TRACE) using NMAP script engine. What Nmap script will help you with this task?
You are an ethical hacker tasked with conducting an enumeration of a company’s network. Given a Windows system with NetBIOS enabled, port 139 open, and file and printer sharing active, you are about to run some nbtstat commands to enumerate NetBIOS names. The company uses |Pv6 for its network. Which of the
following actions should you take next?
Wilson, a professional hacker, targets an organization for financial benefit and plans to compromise its systems by sending malicious emails. For this purpose, he uses a tool to track the emails of the target and extracts information such as sender identities, mall servers, sender IP addresses, and sender locations from different public sources. He also checks if an email address was leaked using the haveibeenpwned.com API. Which of the following tools is used by Wilson in the above scenario?
A penetration tester is tasked with scanning a network protected by an IDS and firewall that actively blocks connection attempts on non-standard ports. The tester needs to gather information on the target system without triggering alarms. Which technique should the tester use to evade detection?
You have the SOA presented below in your Zone.
Your secondary servers have not been able to contact your primary server to synchronize information.
How long will the secondary servers attempt to contact the primary server before it considers that zone is dead and stops responding to queries?
collegae.edu. SOA, cikkye.edu ipad.college.edu. (200302028 3600 3600 604800 3600)
A network security analyst, while conducting penetration testing, is aiming to identify a service account password using the Kerberos authentication protocol. They have a valid user authentication ticket (TGT) and decided to carry out a Kerberoasting attack. In the scenario described, which of the following steps should the analyst take next?
Daniel Is a professional hacker who Is attempting to perform an SQL injection attack on a target website. During this process, he encountered an IDS that detects SQL Injection attempts based on predefined signatures. To evade any comparison statement, he attempted placing characters such as ‘ 'or '1'='1" In any bask injection statement such as "or 1=1." Identify the evasion technique used by Daniel in the above scenario.
Which of the following are well-known password-cracking programs?
A penetration tester is tasked with assessing the security of an Android mobile application that stores sensitive user data. The tester finds that the application does not use proper encryption to secure data at rest. What is the most effective way to exploit this vulnerability?
Tony is a penetration tester tasked with performing a penetration test. After gaining initial access to a target system, he finds a list of hashed passwords.
Which of the following tools would not be useful for cracking the hashed passwords?
A financial institution's online banking platform is experiencing intermittent downtime caused by a sophisticated DDoS attack that combines SYN floods and HTTP GET floods from a distributed botnet. Standard firewalls and load balancers cannot mitigate the attack without affecting legitimate users. To protect their infrastructure and maintain service availability, which advanced mitigation strategy should the institution implement?
An e-commerce platform hosted on a public cloud infrastructure begins to experience significant latency and timeouts. Logs show thousands of HTTP connections sending headers extremely slowly and never completing the full request. What DoS technique is most likely responsible?
Peter, a system administrator working at a reputed IT firm, decided to work from his home and login remotely. Later, he anticipated that the remote connection could be exposed to session hijacking. To curb this possibility, he implemented a technique that creates a safe and encrypted tunnel over a public network to securely send and receive sensitive information and prevent hackers from decrypting the data flow between the endpoints.
What is the technique followed by Peter to send files securely through a remote connection?
A penetration tester is assessing the security of a corporate wireless network that uses WPA2-Enterprise encryption with RADIUS authentication. The tester wants to perform a man-in-the-middle attack by tricking wireless clients into connecting to a rogue access point. What is the most effective method to achieve this?
Steve, an attacker, created a fake profile on a social media website and sent a request to Stella. Stella was enthralled by Steve's profile picture and the description given for his profile, and she initiated a conversation with him soon after accepting the request. After a few days. Sieve started asking about her company details and eventually gathered all the essential information regarding her company. What is the social engineering technique Steve employed in the above scenario?
George is a security professional working for iTech Solutions. He was tasked with securely transferring sensitive data of the organization between industrial systems. In this process, he used a short-range communication protocol based on the IEEE 203.15.4 standard. This protocol is used in devices that transfer data infrequently at a low rate in a restricted area, within a range of 10-100 m. What is the short-range wireless communication technology George employed in the above scenario?
A penetration tester is assessing a mobile application and discovers that the app is vulnerable to improper session management. The session tokens are not invalidated upon logout, allowing the tokens to be reused. What is the most effective way to exploit this vulnerability?
During a red team engagement, an ethical hacker discovers that a thermostat accepts older firmware versions without verifying their authenticity. By loading a deprecated version containing known vulnerabilities, the tester gains unauthorized access to the broader network. Which IoT security issue is most accurately demonstrated in this scenario?
A computer science student needs to fill some information into a secured Adobe PDF job application that was received from a prospective employer. Instead of requesting a new document that allowed the forms to be completed, the student decides to write a script that pulls passwords from a list of commonly used passwords to try against the secured PDF until the correct password is found or the list is exhausted.
Which cryptography attack is the student attempting?
Techno Security Inc. recently hired John as a penetration tester. He was tasked with identifying open ports in the target network and determining whether the ports are online and any firewall rule sets are encountered. John decided to perform a TCP SYN ping scan on the target network. Which of the following Nmap commands must John use to perform the TCP SYN ping scan?
Fingerprinting an Operating System helps a cracker because:
Scenario1:
1.Victim opens the attacker's web site.
2.Attacker sets up a web site which contains interesting and attractive content like 'Do you want to make
$1000 in a day?'.
3.Victim clicks to the interesting and attractive content URL.
4.Attacker creates a transparent 'iframe' in front of the URL which victim attempts to click, so victim thinks that he/she clicks to the 'Do you want to make $1000 in a day?' URL but actually he/she clicks to the content or URL that exists in the transparent 'iframe' which is setup by the attacker.
What is the name of the attack which is mentioned in the scenario?
An incident investigator asks to receive a copy of the event logs from all firewalls, proxy servers, and Intrusion Detection Systems (IDS) on the network of an organization that has experienced a possible breach of security. When the investigator attempts to correlate the information in all of the logs, the sequence of many of the logged events do not match up.
What is the most likely cause?
