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Antivirus Bypass Techniques

You're reading from   Antivirus Bypass Techniques Learn practical techniques and tactics to combat, bypass, and evade antivirus software

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Product type Paperback
Published in Jul 2021
Publisher Packt
ISBN-13 9781801079747
Length 242 pages
Edition 1st Edition
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Authors (2):
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Uriel Kosayev Uriel Kosayev
Author Profile Icon Uriel Kosayev
Uriel Kosayev
Nir Yehoshua Nir Yehoshua
Author Profile Icon Nir Yehoshua
Nir Yehoshua
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Toc

Table of Contents (13) Chapters Close

Preface 1. Section 1: Know the Antivirus – the Basics Behind Your Security Solution
2. Chapter 1: Introduction to the Security Landscape FREE CHAPTER 3. Chapter 2: Before Research Begins 4. Chapter 3: Antivirus Research Approaches 5. Section 2: Bypass the Antivirus – Practical Techniques to Evade Antivirus Software
6. Chapter 4: Bypassing the Dynamic Engine 7. Chapter 5: Bypassing the Static Engine 8. Chapter 6: Other Antivirus Bypass Techniques 9. Section 3: Using Bypass Techniques in the Real World
10. Chapter 7: Antivirus Bypass Techniques in Red Team Operations 11. Chapter 8: Best Practices and Recommendations 12. Other Books You May Enjoy

Antivirus bypass using timing-based techniques

In order to sell security products, antivirus vendors have to emphasize two central characteristics, as follows:

  • High level of detection—Protecting the user from threats
  • User-friendly—Comfortable user interface (UI), clear images, fast scans, and more

For example, we can look at a particular endpoint that has about 100,000 files. If we were to demand maximum detection from antivirus software, scanning all of those 100,000 files could take a few days—and, in a few cases, even longer. This is an extreme demand that antivirus vendors cannot possibly meet, and are not supposed to.

In order to avoid this kind of situation, antivirus vendors do everything possible to maximize wait time during a scan, even if this means that at best, detection is less precise, or at worst, that malware is not detected at all.

Antivirus vendors prefer to scan about 100,000 files in 24 minutes, with a detection rate...

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