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350-201 · Question #140

After a recent malware incident, the forensic investigator is gathering details to identify the breach and causes. The investigator has isolated the affected workstation. What is the next step that…

The correct answer is A. Analyze the applications and services running on the affected workstation. This question tests the correct order of forensic steps after a malware-affected workstation has been isolated from the network.

Host-Based Analysis

Question

After a recent malware incident, the forensic investigator is gathering details to identify the breach and causes. The investigator has isolated the affected workstation. What is the next step that should be taken in this investigation?

Options

  • AAnalyze the applications and services running on the affected workstation.
  • BCompare workstation configuration and asset configuration policy to identify gaps.
  • CInspect registry entries for recently executed files.
  • DReview audit logs for privilege escalation events.

How the community answered

(25 responses)
  • A
    72% (18)
  • B
    4% (1)
  • C
    8% (2)
  • D
    16% (4)

Why each option

This question tests the correct order of forensic steps after a malware-affected workstation has been isolated from the network.

AAnalyze the applications and services running on the affected workstation.Correct

Immediately after isolation, the investigator must capture volatile live data before it is lost, and analyzing currently running applications and services is the highest-priority volatile data source. Active malicious processes, injected DLLs, and suspicious network connections visible in running services reveal the malware's current behavior and attack surface, and this data disappears on reboot or shutdown.

BCompare workstation configuration and asset configuration policy to identify gaps.

Comparing workstation configuration against asset policy is a compliance gap analysis step and does not capture time-sensitive volatile forensic evidence that may disappear if the system is powered off.

CInspect registry entries for recently executed files.

Inspecting registry entries for recently executed files is a non-volatile disk forensics step that can be performed later without risk of data loss, making it lower priority than collecting volatile process data.

DReview audit logs for privilege escalation events.

Reviewing audit logs for privilege escalation is also a non-volatile log analysis task that can be deferred, as logs are persisted to disk and are not at risk of being lost the way in-memory process data is.

Concept tested: Incident response forensic triage order after workstation isolation

Source: https://www.nist.gov/publications/guide-integrating-forensic-techniques-incident-response

Topics

#forensic investigation#malware analysis#workstation triage#host analysis

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