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File Systems Presentation

The document provides an overview of three file systems: NTFS, FAT32, and EXT4, detailing their features, strengths, weaknesses, and common exploits. It emphasizes the importance of file systems in data storage and security, particularly in hacking and forensics. Additionally, it lists tools for exploring each file system and includes practice questions for further understanding.

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79 views10 pages

File Systems Presentation

The document provides an overview of three file systems: NTFS, FAT32, and EXT4, detailing their features, strengths, weaknesses, and common exploits. It emphasizes the importance of file systems in data storage and security, particularly in hacking and forensics. Additionally, it lists tools for exploring each file system and includes practice questions for further understanding.

Uploaded by

whatismasswhatisweight
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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File Systems:

NTFS, FAT32,
EXT4
Understanding the
Core of Data Storage
Introduction

- WHAT IS A FILE SYSTEM? - WHY FILE SYSTEMS ARE - OVERVIEW OF NTFS,


CRUCIAL IN HACKING. FAT32, AND EXT4.
NTFS: New Technology
File System

• - Developed by Microsoft, default for


Windows.
• - Features:
• • File permissions (ACL-based).
• • Journaling for data integrity.
• • Alternate Data Streams (ADS).
• - Strengths: Secure, supports large
files.
• - Weaknesses: Limited cross-platform
use.
• - Common exploit: Hiding data in ADS.
• - Widely compatible and simple.
• - Features:
• • Minimal metadata, lightweight.
FAT32: File •
•
• Supports smaller drives and devices.
- Strengths: Universally readable.
Allocation Table • - Weaknesses: 4GB file size limit, no
journaling.
• - Common exploit: Easy bypass of
security due to lack of permissions.
EXT4: Fourth Extended
File System
• - Default for Linux systems.
• - Features:
• • Journaling for reliability.
• • Handles massive files and partitions.
• • Extents reduce fragmentation.
• - Strengths: High performance, Linux-
compatible.
• - Weaknesses: Limited Windows support.
• - Common exploit: Misconfigured
permissions.
Comparison of
File Systems
• Please review the table :
Tools for Exploring File
Systems

• - NTFS:
• • MFTParser, NTFS Explorer.
• - FAT32:
• • Autopsy, R-Studio.
• - EXT4:
• • extundelete, e2fsck.
• - Use these tools for forensic analysis and
vulnerability discovery.
- File systems are essential for data
storage and security.

- NTFS, FAT32, and EXT4 each have


Conclusion unique strengths and use cases.

- Mastering these systems aids in


hacking, forensics, and optimization.
Practice Questions
(Review Slides 1-4)

• What is the primary purpose of a file


system?
• Name two key features of NTFS and explain
their significance.
• What is the maximum file size supported by
FAT32, and how does it affect its usage?
• Why is journaling an important feature in a
file system like NTFS?
Practice Questions
(Review Slides 5-8)

• Compare NTFS, FAT32, and EXT4 based on


their compatibility with operating systems.
• What are Alternate Data Streams (ADS),
and how can they be exploited in NTFS?
• Explain why FAT32 is commonly used for
USB drives despite its limitations.
• How does journaling in EXT4 enhance data
reliability?
• Name one tool for analyzing each file
system (NTFS, FAT32, EXT4) and their use
case in forensic analysis.
• What are PCIe lanes, and how do they
relate to file system performance in SSDs?

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