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| Section | Objectives |
|---|---|
| Topic 1: Reconnaissance Techniques | - Scanning networks and enumeration - Footprinting and information gathering |
| Topic 2: System Hacking | - Malware threats and system exploitation - Gaining access and privilege escalation |
| Topic 3: Cloud and IoT Security | - IoT security fundamentals - Cloud computing security concepts |
| Topic 4: Web and Application Security | - Web application hacking techniques |
| Topic 5: Wireless and Mobile Security | - Mobile platform vulnerabilities - Wireless network attacks |
| Topic 6: Introduction to Ethical Hacking | - Ethical hacking concepts and methodology |
| Topic 7: Cryptography | - Encryption, hashing, and cryptanalysis |
| Topic 8: Network Attacks | - Sniffing and session hijacking - Denial of Service (DoS/DDoS) |
>> 312-50v13 Zertifizierungsprüfung <<
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849. Frage
You are a security analyst at Sentinel Cyber Group, monitoring the web portal of Aspen Valley Bank in Salt Lake City, Utah. During log review, you notice repeated attempts by attackers to inject malicious strings into the login fields. However, despite these attempts, the application executes queries safely without altering their logic, since user inputs are kept separate from the SQL statements and bound as fixed values before execution. Based on the observed defense mechanism, which SQL injection countermeasure is the application employing?
Antwort: D
Begründung:
Keeping user inputs separate from SQL logic and binding them as fixed values before execution is the core principle of parameterized queries or prepared statements, which effectively prevent SQL injection.
850. Frage
As a Certified Ethical Hacker, you are conducting a footprinting and reconnaissance operation against a target organization. You discover a range of IP addresses associated with the target using the SecurityTrails tool. Now, you need to perform a reverse DNS lookup on these IP addresses to find the associated domain names, as well as determine the nameservers and mail exchange (MX) records. Which of the following DNSRecon commands would be most effective for this purpose?
Antwort: C
851. Frage
_________ is a tool that can hide processes from the process list, can hide files, registry entries, and intercept keystrokes.
Antwort: A
Begründung:
A rootkit is a type of stealth malware designed to hide the existence of certain processes or programs from normal detection methods. It can:
Hide itself and other processes
Conceal files and registry entries
Intercept system calls or keystrokes (keylogging)
Maintain persistent access
From CEH v13 Courseware:
Module 6: Malware Threats # Rootkits
Incorrect Options:
A: A Trojan may offer remote access but doesn't necessarily hide itself.
C: DoS tools are used to overload systems, not hide.
D: Scanners detect vulnerabilities, not conceal activities.
E: A backdoor may provide unauthorized access, but rootkits focus on hiding.
Reference:CEH v13 Study Guide - Module 6: Malware Types # RootkitsNIST SP 800-83 - Malware Handling Guide
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852. Frage
An audacious attacker is targeting a web server you oversee. He intends to perform a Slow HTTP POST attack, by manipulating 'a' HTTP connection. Each connection sends a byte of data every 'b' second, effectively holding up the connections for an extended period. Your server is designed to manage 'm' connections per second, but any connections exceeding this number tend to overwhelm the system. Given
'a=100' and variable 'm', along with the attacker's intention of maximizing the attack duration 'D=a*b', consider the following scenarios. Which is most likely to result in the longest duration of server unavailability?
Antwort: C
Begründung:
A Slow HTTP POST attack is a type of denial-of-service (DoS) attack that exploits the way web servers handle HTTP requests. The attacker sends a legitimate HTTP POST header to the web server, specifying a large amount of data to be sent in the request body. However, the attacker then sends the data very slowly, keeping the connection open and occupying the server's resources. The attacker can launch multiple such connections, exceeding the server's capacity to handle concurrent requests and preventing legitimate users from accessing the web server.
The attack duration D is given by the formula D = a * b, where a is the number of connections and b is the hold-up time per connection. The attacker intends to maximize D by manipulating a and b. The server can manage m connections per second, but any connections exceeding m will overwhelm the system. Therefore, the scenario that is most likely to result in the longest duration of server unavailability is the one where a > m and b is the largest. Among the four options, this is the case for option B, where a = 100, m = 90, and b = 15.
In this scenario, D = 100 * 15 = 1500 seconds, which is the longest among the four options. Option A has a larger b, but a < m, so the server can handle the connections without being overwhelmed. Option C has a > m, but a smaller b, so the attack duration is shorter. Option D has a > m, but a smaller b and a smaller difference between a and m, so the attack duration is also shorter.
References:
What is a Slow POST Attack & How to Prevent One? (Guide)
Mitigate Slow HTTP GET/POST Vulnerabilities in the Apache HTTP Server - Acunetix What is a Slow Post DDoS Attack? | NETSCOUT
853. Frage
Henry Is a cyber security specialist hired by BlackEye - Cyber security solutions. He was tasked with discovering the operating system (OS) of a host. He used the Unkornscan tool to discover the OS of the target system. As a result, he obtained a TTL value, which Indicates that the target system is running a Windows OS. Identify the TTL value Henry obtained, which indicates that the target OS is Windows.
Antwort: A
Begründung:
Windows TTL 128, Linux TTL 64, OpenBSD 255 ... https://subinsb.com/default-device-ttl-values/ Time to Live (TTL) represents to number of 'hops' a packet can take before it is considered invalid. For Windows/Windows Phone, this value is 128. This value is 64 for Linux/Android.
854. Frage
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Viele Leute meinen, man braucht viel fachliche IT-Kenntnisse, um die schwierigen ECCouncil 312-50v13 IT-Zertifizierungsprüfung zu bestehen. Nur diejenigen, die umfassende IT-Kenntnisse besitzen, sind qualifiziert dazu, sich an der ECCouncil 312-50v13 Prüfung zu beteiligen. Jetzt gibt es viele Methoden, die Ihre unausreichenden Fachkenntnisse wettmachen. Sie können sogar mit weniger Zeit und Energie als die fachlich gutqualifizierten die ECCouncil 312-50v13 Prüfung auch bestehen. Wie es heißt, viele Wege führen nach Rom.
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