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NEW QUESTION # 25
Which of the following techniques is defined as the art of hiding data "behind" other data without the target's knowledge, thereby hiding the existence of the message itself?
Answer: D
Explanation:
Steganographyis the technique of concealing a messagewithin another seemingly harmless carrier(such as an image, audio file, video, or document) so that theexistence of the hidden message is not apparentto an observer. Digital forensics references distinguish steganography from encryption: encryption scrambles content but usually leaves visible indicators that protected data exists (ciphertext), while steganography aims to make the communication look ordinary, reducing suspicion. In practice, steganographic methods often embed data into redundant or less perceptible parts of the carrier, such as modifying least significant bits in pixel values, altering frequency components in audio, or inserting data into metadata or unused file structures.
The other options do not match the definition.Password crackingis an access technique to recover authentication secrets, not a concealment method.Artifact wipingis an anti-forensics method intended to remove traces (logs, files, slack space remnants), but it does not "hide behind" other data-it destroys or overwrites evidence.Program packerscompress/obfuscate executables to hinder static analysis and detection, but they still produce an executable whose presence is evident; they do not primarily hide messages inside benign files. Therefore, the described "hiding the existence of the message itself" corresponds toSteganography (C).
NEW QUESTION # 26
Jack, a forensic investigator, was appointed by an organization to perform a security audit on a Linux system.
In this process, Jack collected information about the present status of the system and listed all the applications running on various ports to detect malicious programs.
Which of the following commands can help Jack determine any programs/processes associated with open ports?
Answer: A
Explanation:
On Linux, a key step in a forensic triage or security audit is mappingopen/listening portsto theowning processso investigators can identify suspicious services (backdoors, unauthorized daemons, rogue remote- access tools) and correlate them with binaries, users, startup mechanisms, and timestamps. The command netstat -tulpnis designed for exactly this purpose. In this switch set:-tlimits output to TCP sockets,-uincludes UDP sockets,-lshows only listening sockets (open ports awaiting connections),-pdisplays the owningprocess name and PID, and-nprevents name resolution by showing numeric IP addresses and ports (faster and avoids altering evidence via DNS queries). This combination yields a concise list of active listening ports and the processes bound to them, which is highly valuable for detecting unexpected services and attributing network exposure to a specific executable.
The other options do not provide process-to-port attribution:netstat -ishows interface statistics,ip rshows the routing table, andnetstat -rndisplays the routing table in numeric form. Therefore, the correct command is netstat -tulpn(D).
NEW QUESTION # 27
Bob, a forensic investigator, is investigating a live Windows system found at a crime scene. In this process, Bob extracted subkeys containing information such as SAM, Security, and software using an automated tool called FTK Imager.
Which of the following Windows Registry hives' subkeys provide the above information to Bob?
Answer: C
Explanation:
In Windows forensics, the Registry is organized into logical root keys ("hives") that aggregate configuration and security data. The items named in the question-SAM,SECURITY, andSOFTWARE-aresystem-wide registry hivesstored on disk (typically under the system's configuration directory) and loaded at runtime underHKEY_LOCAL_MACHINE (HKLM). Investigators rely on these hives because they contain high- value evidence: theSAMhive stores local account database information (including user and group identifiers and credential-related material), theSECURITYhive holds system security policy and LSA-related settings, and theSOFTWAREhive contains installed software, application configuration, and many operating system settings relevant for program execution and persistence analysis.
Tools likeFTK Imagercan extract these hives (or their live-memory representations) during triage to preserve volatile context and enable offline parsing while maintaining evidentiary integrity. The other root keys do not match these specific hives:HKEY_CURRENT_USERis per-user profile data, HKEY_CURRENT_CONFIGreflects current hardware profile, andHKEY_CLASSES_ROOTis primarily file association/COM class mapping (largely derived from HKLM\Software\Classes and HKCU\Software\Classes). Therefore, the correct hive root that provides SAM, SECURITY, and SOFTWARE subkeys isHKEY_LOCAL_MACHINE (B).
NEW QUESTION # 28
Below are the various steps involved in an email crime investigation.
1.Acquiring the email data
2.Analyzing email headers
3.Examining email messages
4.Recovering deleted email messages
5.Seizing the computer and email accounts
6.Retrieving email headers
What is the correct sequence of steps involved in the investigation of an email crime?
Answer: D
Explanation:
In an email crime investigation, the workflow should begin withseizing the computer and email accounts (5)to preserve evidence and prevent alteration, deletion, or continued misuse. This includes securing endpoints and ensuring account access is maintained under proper authority. Next, investigators proceed withacquiring the email data (1)using forensic methods (logical export, mailbox acquisition, or forensic imaging of local mail stores) to maintain integrity and chain of custody.
Once the data is preserved, investigatorsexamine email messages (3)to identify relevant communications, context, attachments, and indicators of fraud, harassment, data leakage, or impersonation. After identifying emails of interest, investigatorsretrieve email headers (6)(full headers, not just what the mail client displays) because headers contain routing metadata required for attribution and timeline reconstruction. They thenanalyze email headers (2)to interpret fields such as Received lines, Message-ID, originating IP clues (where applicable), sending infrastructure, and authentication results, which helps determine spoofing, relay paths, and sender legitimacy. Finally, theyrecover deleted email messages (4)from mail stores, server-side retention, or unallocated space to restore missing evidence. This sequence matches optionA.
NEW QUESTION # 29
In which of the following attacks does an attacker trick high-profile executives such as CEOs, CFOs, politicians, and celebrities to reveal critical corporate and personal information through email or website spoofing?
Answer: D
Explanation:
The scenario describes a targeted social-engineering attack aimed specifically athigh-profile individuals (CEOs, CFOs, politicians, celebrities) and usesemail or website spoofingto deceive them into disclosing sensitive information. In digital forensics and incident response documentation, this is most accurately categorized aswhaling, a specialized form of phishing that focuses on "big targets" (often called "high-value targets" or "VIPs"). Whaling campaigns typically use highly tailored pretexts (e.g., legal subpoenas, board communications, invoice/payment requests, HR or executive directives) and may include spoofed sender domains, look-alike websites, or fraudulent login pages to harvest credentials and confidential corporate data.
Because executives often have access to financial systems, strategic documents, and privileged communications, attackers concentrate effort on realism and personalization, making whaling distinct from broad, generic phishing.
By contrast,smishingis phishing conducted via SMS/text messages,spimmingis spam over instant messaging platforms, andidentity fraudis a broader category involving impersonation/misuse of personal data but does not specifically denote the executive-targeted spoofing technique described. Therefore, the attack type in the question isWhaling (A).
NEW QUESTION # 30
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