Examkin

Question

Difficulty: MediumDigital Forensics and Chain of Custody

Following an automated alert indicating potential fileless malware activity on an operational database server, a security analyst must collect volatile digital evidence prior to server isolation. Adhering strictly to the standard order of volatility, which of the following data sources should the analyst acquire FIRST?

  1. CPU registers and cache contentsAnswer
  2. B
    Physical RAM and active process tables
  3. C
    Swap space and temporary file systems
  4. D
    Bit-stream image of the primary storage drive

Answer

CPU registers and cache contents should be acquired first because they represent the most volatile data layer on a system.
The correct answer identifies CPU registers and cache contents as the most volatile components. According to the forensic order of volatility, evidence collection must begin with the shortest-lived data sources to prevent evidence destruction.

Step-by-Step Solution

1
Identify the data sources present in the scenario and rank them by volatility lifetime.
CPU registers/cache have lifetimes measured in nanoseconds; RAM in microseconds; swap/temp files in minutes/hours; disk drives persist until explicitly deleted.
Forensic evidence preservation must capture data at risk of immediate loss before capturing more stable data.
2
Apply the standard Order of Volatility guidelines (RFC 3227).
The sequence is: CPU registers/cache -> RAM/routing tables/process tables -> Swap/temp files -> Disk storage -> Remote logs/network traffic -> Archival media.
Following established forensic standards ensures evidence admissibility and integrity.
3
Select the highest priority item from the choices provided.
CPU registers and cache contents are at the top of the volatility hierarchy.
Acquiring CPU registers and cache first prevents critical CPU-bound execution artifacts from being overwritten during subsequent memory dumps.

Key Concept

Order of Volatility in Digital Forensics
Estimated Time:1m 15s
Rate this question

Topics

Digital Forensics and Chain of Custody

More questions from this topic