312-50v13 Exam Dumps - ECCouncil CEH v13 Questions and Answers

CEH v13 explains that fingerprinting is a core reconnaissance technique used to identify software versions, server types, and configurations by analyzing how systems respond to crafted or abnormal input. When testers send malformed HTTP verbs, unusual headers, or atypical URI structures, the server’s specific response codes, banners, and error messages reveal distinctive behavioral patterns. These patterns allow tools like httprint, Nmap NSE scripts, and custom probes to match the responses to known server profiles. This technique is part of active reconnaissance, enabling attackers to determine vulnerabilities associated with specific versions. Phishing (Option B) is unrelated to protocol analysis. Session fixation (Option C) manipulates session identifiers, not HTTP response patterns. Persistent XSS (Option D) relies on web application vulnerabilities, not server fingerprinting. Thus, the tester is performing HTTP-based server fingerprinting.

The finding most directly demonstrates insecure data transfer and storage. The scenario includes two explicit problems: (1) sensitive business records are transmitted “across the network without encryption,” and (2) the same records are “stored in a retrievable format” in the cloud platform. Those two conditions map exactly to data-in-transit and data-at-rest weaknesses. When IoT devices transmit sensitive data without encryption (e.g., plain HTTP, unprotected MQTT, insecure proprietary protocols), attackers who gain network visibility can intercept, read, and potentially modify that data. Similarly, when cloud-stored data is kept in an easily retrievable or improperly protected form (e.g., weak access controls, lack of encryption at rest, overly permissive storage buckets, exposed APIs), attackers can access business records long after transmission.

In IoT ecosystems, data typically flows from sensors to gateways, then to cloud dashboards and analytics services. If encryption and strong access control are not consistently applied across these hops, confidentiality and integrity are at risk. This can lead to competitive harm (exposed inventory/business records), privacy impact (if customer data is included), and operational disruption (tampered records leading to wrong decisions). The scenario is not about the IoT device exposing services like Telnet/FTP (network services), nor about default passwords; it is specifically about how data is transported and stored.

Why the other options are less accurate:

Insecure ecosystem interfaces (A) focuses on APIs, web/mobile apps, and cloud interfaces; while cloud storage access might involve interfaces, the core weakness described is lack of encryption and retrievable storage, which is more directly the data transfer/storage category.

Insecure network services (C) refers to exposed services/ports on IoT devices, not data confidentiality across the pipeline.

Insecure default settings (D) relates to factory defaults (passwords, open ports, insecure configs), not specifically unencrypted transport and weak storage protection.

Therefore, the correct answer is B. Insecure data transfer and storage.

CEH v13 classifies this malware as fileless malware, which resides in memory and abuses legitimate system tools (Living-off-the-Land techniques). Traditional antivirus solutions are often ineffective.

CEH v13 recommends:

Script control (PowerShell Constrained Language Mode)

Application whitelisting

Monitoring parent-child process relationships

These measures directly target the malware’s execution method. Reboots and folder cleanup do not address in-memory persistence.

According to the Certified Ethical Hacker (CEH) Reconnaissance and Footprinting module, DNS cache snooping is a passive information-gathering technique used to determine whether a specific DNS record exists in a server’s cache. Attackers commonly use the dig +norecurse option to prevent the DNS server from querying other DNS servers, thereby revealing only cached results.

When a DNS server responds with NOERROR but does not return an answer, it indicates that the domain name itself is valid, but the requested record is not present in the DNS cache. CEH documentation explains that this situation usually occurs when no internal client has recently queried that domain, so the DNS server has no cached entry for it.

Option A is incorrect because a cached record would return a valid answer section.

Option B is incorrect because NOERROR explicitly means the DNS query was processed successfully.

Option D is incorrect because an expired or non-existent domain would typically return NXDOMAIN, not NOERROR.

CEH materials highlight that attackers use DNS cache snooping to infer user behavior, internal browsing habits, and potential target systems within an organization—making option C the correct conclusion.

According to the Certified Ethical Hacker (CEH) attack methodology, once reconnaissance, footprinting, and website mirroring have been completed, the attacker proceeds cautiously to exploitation while maintaining stealth. CEH documentation emphasizes that low-noise, application-layer attacks are preferable when the objective is to minimize detection.

Option B, attempting SQL Injection, aligns directly with CEH’s Web Application Hacking module. SQL Injection is a server-side attack that can often be executed through normal-looking HTTP requests, making it less likely to trigger intrusion detection systems (IDS) or security alerts. CEH materials highlight SQL injection as a common and effective technique for extracting sensitive data such as usernames, passwords, and business-critical information without disrupting server operations.

Option A is incorrect because immediately modifying server configuration files after session hijacking significantly increases the risk of detection. CEH guidelines stress post-exploitation restraint, especially during red team operations.

Option C is not ideal at this stage because automated vulnerability scanners generate substantial traffic and are highly detectable. CEH explicitly notes that vulnerability scanning is noisy and often logged.

Option D is the least stealthy option. Brute-force attacks generate numerous failed authentication attempts, triggering security alerts and account lockouts. CEH classifies brute-force attacks as high-risk and easily detectable.

Therefore, SQL Injection represents the most effective and stealthy next step in accordance with CEH’s structured attack lifecycle.

In the Aircrack-ng suite referenced throughout CEH wireless hacking coverage, Aireplay-ng is the tool used to inject frames into a wireless network. The key phrase in the question is “transmit packets that force client devices to disconnect and reconnect.” That describes a deauthentication attack, where the tester sends 802.11 deauth frames to a client or to the access point, causing the client to drop its association and then reconnect. When a WPA2 client reconnects, the WPA2 four-way handshake is performed again. By forcing this reconnection, an ethical hacker can capture the handshake and later attempt password recovery in an offline process.

Airodump-ng is primarily a passive capture and monitoring tool used to list access points and clients, hop channels, and capture packets and handshakes, but it does not perform packet injection itself. Aircrack-ng is the cracking component that attempts to recover the WPA/WPA2 pre-shared key from a captured handshake using a wordlist or other offline techniques; it is not the tool that kicks clients off the network. Airbase-ng is used for creating a rogue access point or conducting evil twin style attacks, which is different from transmitting deauthentication frames to trigger a handshake.

Therefore, the tool that matches the described action of actively sending frames to force disconnect and reconnect is Aireplay-ng.

Comprehensive Explanation from CEH v13 Courseware:

CEH v13 identifies XML Signature Wrapping (XSW) attacks, also known simply as Wrapping attacks, as a major threat against SOAP-based web services. These attacks exploit weak XML parsing and insufficient validation of signed message components. SOAP messages often include digitally signed sections, but if the server validates the signature without confirming the correct position or structure of the signed elements, attackers can duplicate, move, or wrap signed content inside a modified XML envelope. This allows an attacker to inject malicious payloads while still presenting a valid signature. CEH details how this can lead to unauthorized execution, privilege escalation, or bypassing authentication controls in SOAP APIs. Cloud snooping, cryptanalysis, and IMDS abuse do not involve message duplication or signature misplacement. The scenario precisely matches CEH’s definition of a Wrapping Attack in SOAP/XML security.

This scenario describes SNMP Enumeration, a technique covered under CEH v13 Reconnaissance and Enumeration. Simple Network Management Protocol (SNMP) operates over UDP port 161 and is widely used for monitoring and managing network devices. A common and critical weakness arises when organizations leave default or publicly known community strings such as public (read-only) or private (read-write) unchanged.

CEH v13 explains that when an SNMP agent is configured with default community strings, it allows unauthenticated or weakly authenticated queries, enabling attackers to retrieve extensive system information. This includes installed software, running processes, system descriptions, network interfaces, and routing tables. The ability to perform bulk data queries using SNMP GET and WALK commands makes enumeration highly effective and fast.

Option B correctly identifies the root cause: misconfigured SNMP agents permitting anonymous or default access. The other options are incorrect because SNMP does not rely on FTP, registry access, or trap logging for enumeration. Traps (Option D) are unsolicited notifications sent to managers and are not used for querying system details.

CEH v13 strongly recommends disabling SNMP when not required, changing default community strings, restricting SNMP access via ACLs, and using SNMPv3, which supports authentication and encryption. Therefore, Option B is the correct and CEH-aligned answer.

Rachel is using the Ping method for sniffer detection. The distinguishing behavior in the scenario is that she sends ICMP echo requests (pings) crafted so that the Layer 2 MAC address is incorrect/mismatched, while the Layer 3 IP destination is correct. Under normal circumstances, a host’s network interface card (NIC) should drop frames not addressed to its MAC address. However, when a NIC is set to promiscuous mode (as sniffers often require), it can accept frames regardless of destination MAC and pass them up the stack. If the operating system then processes the encapsulated IP packet and responds (e.g., sends an ICMP echo reply), that response suggests the host is accepting frames it normally would ignore—an indicator consistent with promiscuous mode sniffing.

This technique is used as a heuristic: by intentionally violating normal Ethernet delivery rules and observing whether the target still responds, you can infer that the interface may be capturing traffic not explicitly addressed to it. It’s not perfect—modern drivers, switches, VLAN configurations, and host firewall behavior can affect results—but the scenario’s “mismatched MAC but correct IP” plus “the suspected machine responds” is the classic signature of the ping-based promiscuous-mode test.

Why the other options are less suitable:

ARP method (B) typically involves ARP-based tricks (non-broadcast ARP requests or crafted ARP traffic) to test how the target responds; the scenario explicitly describes ICMP behavior.

DNS method (C) relates to DNS queries/resolution behavior and does not match the ICMP/MAC mismatch test.

Nmap sniffer-detect (NSE) (D) is a specific scripted approach, but the question asks for the underlying technique being used; the described action matches the Ping method.

Therefore, the correct answer is A. Ping Method.

CEH training outlines the standard methodology for attacking WPA2-PSK networks: capture the 4-way handshake and then attempt offline cracking of the pre-shared key. The most reliable way to force handshake generation is to perform a de-authentication attack using tools like Aireplay-ng. This attack momentarily disconnects a wireless client, forcing it to reauthenticate with the access point. During this reauthentication, the AP and client exchange the 4-way handshake packets necessary for offline cracking. CEH emphasizes that WPA2 encryption itself cannot be brute-forced directly; attackers must obtain the handshake and then apply dictionary or brute-force attacks offline. Attempting XSS or router spoofing does not capture the handshake and is unrelated to WPA2 key extraction. The deauth attack is also a classic wireless attack vector described extensively in CEH because it is effective, does not require interaction with the encryption algorithm, and works regardless of the strength of the AP’s passphrase. Once the handshake is captured, tools such as Hashcat are used to attempt key recovery.

CEH v13 explains that WPA2-Enterprise replaces the static, shared password model of WPA2-Personal with a centralized authentication system that relies on the 802.1X framework. The essential component of this architecture is RADIUS integrated with EAP, which manages user authentication, device identity verification, and dynamic session key generation. RADIUS acts as the backend authentication server, while EAP provides a flexible authentication framework supporting certificates, smartcards, or credentials. This combination allows organizations to enforce per-user access control policies, revoke individual users without changing network-wide passwords, and generate unique Pairwise Master Keys (PMKs) for every authenticated session. CEH highlights that one of the major advantages of WPA2-Enterprise is its ability to produce unique encryption keys for each client, preventing key reuse and mitigating lateral movement if one device is compromised. Certificate-based EAP types such as EAP-TLS introduce mutual authentication, ensuring both client and server validate each other’s identity before allowing network access. This significantly increases security posture compared to PSK networks, which cannot scale securely for large enterprise deployments.

Passive reconnaissance focuses on collecting information without directly touching or interacting with the target’s systems. CEH materials stress that any action that sends network traffic to the target—such as scanning, probing, fingerprinting, or enumeration—creates logs and increases the risk of detection. Email headers, however, are considered an excellent source of passive intelligence because they reveal internal IP structures, routing paths, mail server hostnames, internal domain formats, and technology stacks without requiring interaction with the target environment. Since these headers are already in the possession of the ethical hacker through legitimate communication records, examining them does not generate traffic or trigger monitoring systems. SSL certificates and WHOIS data provide valuable external information, but they rarely disclose internal addressing schemes. Active scanning tools, such as Nmap, would immediately violate the requirement to avoid detection. Therefore, analyzing previously received email headers is the most effective and covert method for extracting internal network details during the reconnaissance phase.

CEH v13 states that DNS server hijacking occurs when attackers compromise the authoritative DNS infrastructure and alter DNS zone records to redirect all legitimate queries to malicious destinations. Unlike DNS cache poisoning, which affects specific resolvers temporarily, server hijacking manipulates the core DNS authority controlling the domain. This results in a complete redirect for all users, regardless of geographic location or device configuration. CEH emphasizes that such attacks can lead to large-scale credential theft, phishing, financial fraud, and session compromise because the attacker presents an identical clone site while retaining full control of DNS routing. DNS tunneling is used for covert data exfiltration and does not redirect traffic. DNS rebinding targets browser policies, not global DNS redirection. DNS amplification is a volumetric DDoS technique unrelated to zone manipulation. The scenario matches DNS server hijacking exactly.

Fragmentation is a well-known firewall and IDS evasion technique covered in CEH materials. The attacker breaks a malicious packet into smaller IP fragments so that simple filtering devices, especially those relying mainly on basic header checks or stateless rules, may fail to reconstruct the original payload and therefore miss the malicious content. To counter this, defenses must track packet state and perform reassembly or validation of fragmented traffic so the security control can evaluate the complete communication stream rather than isolated fragments.

Stateful Packet Inspection is the control most aligned with this requirement. A stateful inspection firewall maintains a state table of active connections and monitors traffic as part of an ongoing session. Because it tracks session context, it can handle fragmented packets more effectively by correlating fragments to the original flow and applying policy after reconstructing or normalizing traffic. In CEH-aligned descriptions, this directly reduces the effectiveness of fragmentation-based evasion, overlapping with the concept of traffic normalization that removes ambiguity attackers try to exploit.

Deep Packet Inspection examines payload beyond headers, but the key success factor in stopping fragmentation evasion is state tracking and reassembly, which is characteristic of stateful inspection and state-aware security devices. Signature-based and anomaly-based detection can help detect malicious patterns or unusual behavior, but without reliable reassembly and session context, fragmented payloads may not match signatures and may appear benign in isolation. Therefore, the most likely measure used to identify and block fragmented packets in this scenario is Stateful Packet Inspection.

The correct answer is B. BitLocker Drive Encryption because the requirements describe native Windows full-disk encryption that integrates tightly with enterprise Windows security features and centralized management. BitLocker is Microsoft’s built-in disk encryption technology designed to provide transparent encryption for the operating system volume and additional fixed/removable drives. It supports hardware-backed startup protection through integration with the Trusted Platform Module (TPM), which can help protect encryption keys and validate boot integrity before unlocking the OS volume. This matches the prompt’s requirement for “hardware-backed startup protection.”

The scenario also emphasizes “centralized key escrow via Active Directory/management policies.” In enterprise deployments, BitLocker recovery information can be backed up to Active Directory and managed through Group Policy / MDM controls, enabling standardized enforcement (encryption settings, recovery key handling, compliance reporting) across servers and endpoints. This is a core operational advantage in regulated environments like healthcare: it enables rapid response (recoverability), consistent policy application, and audit-friendly control of encryption keys—without requiring third-party key management tooling for basic escrow needs.

Additionally, the prompt calls for securing the “system partition and attached data volumes” in a way that is compatible with Windows platform behavior and minimizes disruption. BitLocker supports encrypting both the OS volume and data volumes, and it is designed for transparent operation once enabled, so normal server use and domain authentication continue as expected.

Why the other options are not correct: FileVault is Apple’s full-disk encryption for macOS, not Windows. VeraCrypt and Rohos Disk Encryption are third-party solutions that can provide disk encryption, but they do not match the stated preference for deep Windows enterprise integration with TPM-based startup protection and Active Directory–based recovery key escrow through standard Microsoft management policies.

Therefore, the best solution for this Windows enterprise requirement is BitLocker Drive Encryption.