CHFI OS and Network Forensics Practice Question
A forensic analyst is using Plaso (log2timeline) to create a super timeline from a compromised Windows system. Which of the following is the PRIMARY advantage of using Plaso over manual timeline creation?
⚠ Common exam trap
In EC-CHFI exams, candidates often confuse Plaso's automated correlation with other security functions like malware detection or encryption, leading to incorrect choices.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It automatically correlates events from different sources and provides a unified timeline
Plaso (log2timeline) is designed to automatically parse and correlate artifacts from multiple sources—such as Windows Event Logs, Registry hives, Prefetch files, and USN journals—into a single, unified super timeline. This eliminates the need for manual correlation across disparate log files, which is error-prone and time-consuming, making automated correlation the primary advantage over manual timeline creation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
It automatically correlates events from different sources and provides a unified timeline
Why this is correct
Plaso log2timeline ingests data from filesystem metadata, application logs, and artifact parsers, then normalizes and correlates timestamped events into a single timeline. This unified super-timeline allows an analyst to visualize and sequence activity across email, web, and file transactions. Consequently, it enables efficient analysis of event sequences rather than per-source inspection.
- ✗
It can detect malware by signature scanning
Why it's wrong here
Plaso log2timeline is not a malware scanner, so it does not use signatures, hashes, or YARA rules to identify malicious code. Instead, it parses artifacts and extracts timestamps to build timelines. Although a timeline may expose suspicious patterns, the actual malware detection would be performed by specialized tools.
- ✗
It generates a timeline only from Windows Event Logs
Why it's wrong here
Plaso log2timeline is not limited to Windows Event Logs; it supports dozens of parsers for Unix syslog, macOS unified logs, web history, registry, and file system metadata. This multi-source coverage is fundamental to its timeline creation, allowing cross-platform analysis. A Windows-only focus would overlook these built-in capabilities.
- ✗
It encrypts the timeline for secure storage
Why it's wrong here
Plaso log2timeline's output is written to formats such as SQLite, CSV, or JSON; encryption is not a built-in or primary feature. If secure storage is required, the analyst would rely on full-disk encryption or separate encryption tools. Thus, this option misidentifies Plaso's core function, which is timeline generation, not data protection.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CHFI practice question is part of Courseiva's free EC-Council certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CHFI exam.