Question 360
A confirmed identity breach affects on-premises and cloud services. Which response model reduces the chance that cloud sessions remain active after on-prem password resets?
- Disable all cloud audit logging during identity recovery
- Treat cloud applications as unrelated because the original alert came from a domain controller
- Have the on-prem team declare success after changing a single password
- Coordinate account actions across identity providers, applications, and incident responders
Explanation
Correct Answer
D:Federated and application sessions may have distinct revocation paths, so cross-team tracking is necessary for complete access containment.
Incorrect Answers
A:Telemetry is needed to verify whether suspect sessions continue and to discover additional persistence.
B:One compromised principal may access both environments, making cross-boundary scope investigation essential.
C:One credential reset may not terminate all issued tokens or attacker-controlled application grants in integrated services.
Question 361
A responder copies a suspicious disk image to a forensic workstation. How can they demonstrate the acquired image remained unchanged during handling?
- Rename the image file to include the word original
- Hash the forensic image and verify its digest after transfer
- Open the image in an editor and save it with a newer modification time
- Rely only on the amount of time required to copy the file
Explanation
Correct Answer
B:Matching digests support byte-level integrity verification when acquisition scope and custody documentation are preserved.
Incorrect Answers
A:A name can change without indicating whether content bytes were altered during transfer.
C:Writing to the original can alter evidence and undermine independent comparison with the acquisition.
D:Transfer duration does not validate that all bytes arrived unchanged or identify handling history.
Question 362
Two analysts handle a malware evidence drive in different shifts. What must a chain-of-custody record include?
- Only a generic note that security staff saw the drive
- Who possessed the item, transfer times, purpose, and identifiers or seals
- Only the workstation brand used by the first analyst
- Only the total number of alerts generated during the investigation
Explanation
Correct Answer
B:Documented custody supports the credibility of evidence by tracing control and any opportunities for alteration.
Incorrect Answers
A:An unspecific statement omits personnel, handling intervals, and provenance needed for later review.
C:Equipment details may help procedure records but cannot replace the identity and chronology of evidence possession.
D:Alert counts are unrelated to how a particular physical evidence item was controlled across shifts.
Question 363
An infected host is running and may contain decrypted malware configuration in memory. Which order best preserves this artifact?
- Replace the endpoint's DNS cache without recording the original state
- Power off the host and assume all memory content persists on disk
- Reinstall the operating system before any evidence capture
- Capture the relevant volatile memory before shutdown
Explanation
Correct Answer
D:RAM contents may disappear when a system is shut down; safety and containment obligations still guide the acquisition decision.
Incorrect Answers
A:Resetting caches destroys some volatile context and cannot substitute for memory acquisition.
B:Volatile memory is not reliably retained after shutdown, so transient processes and secrets may be lost.
C:Reinstallation changes both volatile and persistent artifacts and can erase important traces of the compromise.
Question 364
A disk must be examined without altering the source media. Which control directly reduces accidental writes during acquisition?
- Running the suspect executable directly from the evidence disk
- A validated forensic write blocker or read-only acquisition path
- Using a normal file manager without checking automatic filesystem behavior
- Mounting the evidence read-write to speed indexing
Explanation
Correct Answer
B:Restricting writes preserves source integrity and helps maintain a defensible record of the acquisition method.
Incorrect Answers
A:Execution can change files and may compromise the examination environment.
C:General-purpose tools can update metadata or caches unless read-only protections are deliberately enforced.
D:A writable mount risks modifying metadata or files, making post-acquisition comparisons less trustworthy.
Question 365
An incident response team collects a 2 TB server image although only a small incident window is relevant. What is the most important reporting distinction?
- Delete the original immediately after creating a case summary
- Differentiate preserved source evidence from analysis extracts
- Edit timestamps within the source image to match the SIEM timeline
- Treat all unrelated private files in the image as approved for unrestricted sharing
Explanation
Correct Answer
B:A full image may support later review, while documented targeted extractions improve efficiency and privacy without silently changing original evidence.
Incorrect Answers
A:A summary cannot reproduce all relevant artifacts if new findings emerge or a review is required.
C:Changing the original destroys provenance and makes it harder to identify genuine clock skew or file activity.
D:Collection scope does not remove privacy or access restrictions for data irrelevant to the case.
Question 366
An investigation must determine whether an exploit request received a malicious server response. Which two artifacts are useful? Choose TWO.
- Only the number of users connected to Wi-Fi that day
- Packet capture of the relevant bidirectional session when available
- Only an inventory of the network interface model
- Only a screenshot of the network sensor's green status light
- Web-server access and application error logs for the corresponding transaction
Explanation
Correct Answers
B:A capture may show request and response details or transport metadata, subject to encryption and capture completeness.
E:Server-side logs help correlate the request to executed handlers, errors, and affected application state.
Incorrect Answers
A:An aggregate user count cannot identify the exploit payload or response for the targeted server session.
C:Hardware information does not reconstruct an individual HTTP exchange or its server-side handling.
D:Sensor status says little about content or outcome of a specific exploit request.
Question 367
A packet capture contains a TLS connection to an address shared by multiple websites behind a CDN. Investigators need to identify the intended website without overstating certainty. Which correlation is most defensible?
- Assume the certificate issuer alone uniquely identifies the requested site
- Attribute the connection to the most famous website hosted at that IP address
- Treat an IP reputation label as proof that every connection to the address used one malicious domain
- Join client DNS history and visible TLS server-name or proxy host records to the flow timing
Explanation
Correct Answer
D:Time-aligned hostname evidence can narrow the destination behind a shared address, while encrypted ClientHello or missing logs may limit attribution confidence.
Incorrect Answers
A:A certificate authority signs certificates for many customers, so issuer identity is not enough to establish an individual hostname.
B:A shared edge address can serve many unrelated websites, and popularity does not identify the hostname that the client intended.
C:Reputation can guide triage, but shared infrastructure and changing DNS records prevent a unique domain conclusion from address reputation alone.
Question 368
A disk timeline shows hundreds of files modified on the same minute, just after a documented mass restore from backup. Which finding is most defensible?
- All listed files must have been independently modified by the attacker at that minute
- Discard the filesystem timeline because a single bulk restore makes every other event unreliable
- The backup platform has proven that all pre-restore file timestamps are forensically accurate
- Corroborate file times against backup records and independent artifacts
Explanation
Correct Answer
D:A batch restore can distort file metadata; journal records, prior snapshots, application events, and backup manifests help separate restore effects from user actions.
Incorrect Answers
A:A restoration process can set or reset file timestamps in bulk; timestamp coincidence is not independent evidence of malicious modification.
B:The affected timestamps require qualification, but many unrelated system and application records may still provide sound, separately supported chronology.
C:Backup tooling may restore selected attributes while modifying others. The analyst must verify timestamps against original sources and acquisition behavior.
Question 369
A suspicious email carries a password-protected archive. The gateway recorded the message but did not inspect the encrypted attachment. What evidence handling best supports later malware analysis?
- Preserve the raw MIME message and inspect verified copies safely
- Forward the original archive to every analyst and let them test decryption on their work laptops
- Guess the password repeatedly on the employee workstation and open all archived files there
- Keep only the subject line because encrypted attachments contain no usable forensic artifacts
Explanation
Correct Answer
A:The raw message maintains encoded attachment bytes and metadata. Verified working copies enable safe inspection without altering the acquired source.
Incorrect Answers
B:Uncontrolled distribution expands sensitive data exposure and malware execution risk without providing traceable custody or a reproducible analysis procedure.
C:Executing unknown content on an affected user system risks further compromise and contaminates evidence; analysis should use approved isolated tooling.
D:The message still carries attachment content, headers, hashes, and context relevant to attribution and scope even if decryption is initially unavailable.
Question 370
A suspect deleted working files shortly before a laptop was collected. The investigator needs to reconstruct file creation, rename, and deletion activity on an NTFS volume. Which artifact is a useful starting point?
- Review USB connection events alone without file-level read and write correlation
- The NTFS USN change journal correlated with MFT metadata and other timestamps
- An assumption that normal deletion always destroys all filesystem metadata
- An up-to-date file explorer listing with only surviving filenames
Explanation
Correct Answer
B:The change journal and filesystem metadata can reveal relevant historical operations when still retained; neither alone proves that file contents were exfiltrated.
Incorrect Answers
A:Device events show the removable medium was attached, but not necessarily which confidential file was accessed and copied during the user session.
C:Deletion often leaves recoverable metadata or journal entries for a period, although retention, overwrites, and cleanup affect what survives.
D:A current directory view omits many prior rename and deletion operations and is not sufficient to reconstruct historical file activity.