Book Image

Antivirus Bypass Techniques

By : Nir Yehoshua, Uriel Kosayev
Book Image

Antivirus Bypass Techniques

By: Nir Yehoshua, Uriel Kosayev

Overview of this book

Antivirus software is built to detect, prevent, and remove malware from systems, but this does not guarantee the security of your antivirus solution as certain changes can trick the antivirus and pose a risk for users. This book will help you to gain a basic understanding of antivirus software and take you through a series of antivirus bypass techniques that will enable you to bypass antivirus solutions. The book starts by introducing you to the cybersecurity landscape, focusing on cyber threats, malware, and more. You will learn how to collect leads to research antivirus and explore the two common bypass approaches used by the authors. Once you’ve covered the essentials of antivirus research and bypassing, you'll get hands-on with bypassing antivirus software using obfuscation, encryption, packing, PowerShell, and more. Toward the end, the book covers security improvement recommendations, useful for both antivirus vendors as well as for developers to help strengthen the security and malware detection capabilities of antivirus software. By the end of this security book, you'll have a better understanding of antivirus software and be able to confidently bypass antivirus software.
Table of Contents (13 chapters)
1
Section 1: Know the Antivirus – the Basics Behind Your Security Solution
5
Section 2: Bypass the Antivirus – Practical Techniques to Evade Antivirus Software
9
Section 3: Using Bypass Techniques in the Real World

Bypassing antivirus software in red team operations

There are a lot of advantages to bypassing antivirus software in your professional journey when performing red team operations. In order to use this valuable knowledge, you will need to understand on which endpoint you are going to perform the bypass, using various techniques.

When performing red team operations on a company, one of the primary goals is to extract sensitive information from an organization. To do this, we will need to receive some type of access to the organization. For instance, if the organization uses Microsoft 365, extraction of information may be accomplished by using a simple phishing page for company employees, connecting to one of the employees' user accounts, and stealing information already located in the cloud.

But that is not always the case. Nowadays, companies still store their internal information in their Local Area Network (LAN)—for example, within Server Message Block (SMB) servers...