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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 a single malicious functionality

One of the central problems that antivirus software vendors need to deal with is false positives. Antivirus software is not supposed to report to the user every single little insignificant event taking place on the endpoint. If it does, the user may be forced to abandon the antivirus software and switch to another antivirus software that creates fewer interruptions during regular use.

To deal with false-positive detection, antivirus vendors increase their detection rate. For example, if a file is not signed in the static and dynamic engines, the heuristic engine goes into operation and starts to calculate on its own whether the file is malicious using all sorts of parameters. For example, the antivirus software will try to determine whether the file is opening a socket, performing dropping into the persistence folder, and receiving commands from a remote server. The rate can be 70%, for example, that the file is detected as...

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