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質問 # 58
Identify the malware analysis technique in which the investigators must take a snapshot of the baseline state of the forensic workstation before malware execution.
正解：C
解説：
The technique described-taking a snapshot of the baseline state of the forensic workstation before executing malware-aligns withMonitoring host integrity. In malware forensics, investigators often perform controlled execution (dynamic analysis) and need a reliable way to identifywhat changed on the systemas a direct result of the malware run. Host integrity monitoring is a structured approach where the examiner first captures aknown-good baselineof critical system elements such as file system state (key directories, system binaries), registry/configuration state, running services, installed drivers, scheduled tasks, and sometimes hash inventories of important files. After malware execution, the investigator captures a second snapshot and performsdifferential comparisonto determine newly created/modified files, persistence mechanisms, configuration changes, dropped payloads, and tampering attempts.
This baseline-before/after comparison is fundamental for attributing changes to the sample, supporting repeatability, and documenting evidence in a defensible manner. The other options do not require a workstation baseline snapshot in this sense:online malware scanningchecks a file against signatures/reputation services;string searchextracts readable strings from binaries; andfile fingerprintingtypically refers to hashing to uniquely identify a file, not system-wide state comparison. Therefore, the correct answer isMonitoring host integrity (B).
質問 # 59
Which of the following steps in forensic readiness planning provides a backup for future reference and assists in presenting evidence in a court of law?
正解：C
解説：
In forensic readiness planning, the goal is to ensure that when an incident occurs, the organization can collect, preserve, and present digital evidence in a manner that remainsreliable, repeatable, and legally defensible. A key requirement for courtroom acceptance is cleardocumentation-often referred to as proper documentation and chain-of-custody support-showing what actions were taken, by whom, when, using which tools, and under what conditions. Creating a defined process for documenting procedures ensures investigators consistently record acquisition steps, handling methods, hashing/verification results, storage locations, access history, and any changes in evidence possession. This documentation becomes a "backup" in the sense that it preserves institutional memory of the investigation steps, allowing future reviewers (auditors, opposing experts, courts) to reconstruct and validate what occurred even long after the incident.
While identifying potential evidence (B) and determining evidence sources (C) are important readiness tasks, they do not themselves create the structured record needed to defend evidence integrity. Keeping an incident response team ready (D) supports operational response, but does not directly ensure admissibility. Therefore, the step that provides future reference and supports court presentation isCreating a process for documenting the procedure (A).
質問 # 60
Which of the following titles of The Electronic Communications Privacy Act protects the privacy of the contents of files stored by service providers and records held about the subscriber by service providers, such as subscriber name, billing records, and IP addresses?
正解：D
解説：
Under the Electronic Communications Privacy Act (ECPA),Title IIis commonly known as theStored Communications Act (SCA). Digital forensics and e-discovery references treat the SCA as the key legal framework governing access tostored electronic communications and associated subscriber/account recordsheld by service providers. The question specifically mentions (1) "contents of files stored by service providers" and (2) "records held about the subscriber ... such as subscriber name, billing records, and IP addresses." These map directly to the SCA's two broad categories:content(what a communication or stored file contains) andnon-content records(subscriber identity, connection logs, billing information, IP assignment
/history, and related transactional metadata).
From an investigative perspective, Title II matters because it sets the legal process and restrictions for compelled disclosure-typically requiring different forms of legal process depending on whether the investigator seekscontentversussubscriber/transactional records, and depending on factors like how the data is stored and retention timeframes. In contrast,Title Ifocuses on real-time interception (wiretap-style capture), andTitle IIIaddresses pen register/trap-and-trace style dialing/routing information rather than stored content.
Therefore, the correct title isTitle II (Option A).
質問 # 61
Below are the various steps involved in forensic readiness planning.
Keep an incident response team ready to review the incident and preserve the evidence.
Create a process for documenting the procedure.
Identify the potential evidence required for an incident.
Determine the sources of evidence.
Establish a legal advisory board to guide the investigation process.
Identify if the incident requires full or formal investigation.
Establish a policy for securely handling and storing the collected evidence.
Define a policy that determines the pathway to legally extract electronic evidence with minimal disruption.
Identify the correct sequence of steps involved in forensic readiness planning.
正解：C
解説：
Forensic readiness planning focuses on ensuring an organization canlegally, efficiently, and reliablycollect usable digital evidence before an incident occurs. The planning sequence typically begins by definingwhat evidence would be neededto support likely incidents (3) and then mappingwhere that evidence residesacross systems, services, logs, endpoints, and network components (4). Once evidence needs and sources are known, readiness requires alegally compliant extraction pathwaythat minimizes business disruption and prevents evidence contamination (8). After defining extraction, an organization must formalizesecure handling and storage policies(chain of custody, access control, retention, integrity protection) so collected evidence remains admissible and trustworthy (7).
With those foundations in place, the organization can define decision criteria forwhen an event becomes a formal investigationand triggers deeper forensic procedures (6). A structureddocumentation processis then set so actions taken during acquisition and analysis are repeatable and defensible (2). Governance is reinforced by establishinglegal oversight/advisory supportto ensure compliance with jurisdictional requirements and internal policy (5). Finally, the plan is operationalized by ensuring anincident response team is preparedto preserve evidence promptly when incidents occur (1). Hence,3#4#8#7#6#2#5#1is the correct sequence.
質問 # 62
Harry, a security professional, was hired to identify the details of an attack that was initiated on a Windows system. In this process, Harry decided to check the logs of currently running applications and the information related to previously uninstalled or removed applications for suspicious events.
Which of the following folders in a Windows system stores information on applications run on the system?
正解：D
解説：
On Windows systems, thePrefetchfeature records execution-related artifacts to speed up subsequent program launches. When an executable is run, Windows often creates a.pf prefetch fileinC:\Windows\Prefetchthat contains valuable forensic indicators such as the executable name (mapped into the prefetch filename), last run time(s) (depending on Windows version), run count (in many versions), and a list of files and directories referenced during startup. Because these artifacts can persist even after an application is lateruninstalled or deleted, investigators commonly use the Prefetch directory to demonstrate that a program executed on a host and to help build timelines around suspicious activity. This is especially useful in intrusion investigations for identifying the execution of attacker tools, droppers, scripts launched via interpreters, or renamed binaries.
The other options are not standard repositories for program execution history.C:\Windows\debugmay contain specific debug logs for certain components but is not the canonical execution-tracking folder.C:
\Windows\BookandC:\subdirare not standard Windows forensic artifact locations. Therefore, the folder that stores information on applications run on the system isC:\Windows\Prefetch (C).
質問 # 63
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