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

Working with Process Explorer

Once we understand what processes are in the operating system, we will want to see them on our endpoint, in order to gather antivirus research leads.

To see a list of processes running on the operating system, we will use the Process Explorer tool (https://docs.microsoft.com/en-us/sysinternals/downloads/process-explorer), which will provide us with a lot of relevant information about the processes that are running in the operating system:

Figure 2.4 – The first glimpse of Process Explorer

In Figure 2.4, you can see a list of the processes that are currently running in the Windows operating system, with a lot of other relevant information.

In order to conduct the research in the right way, it is important to understand the data provided by Process Explorer. From left to right, we can see the following information:

  • Process – the filename of the process with its icon
  • CPU – the percentage of CPU...