Book Image

Learning Malware Analysis

By : Monnappa K A
5 (1)
Book Image

Learning Malware Analysis

5 (1)
By: Monnappa K A

Overview of this book

Malware analysis and memory forensics are powerful analysis and investigation techniques used in reverse engineering, digital forensics, and incident response. With adversaries becoming sophisticated and carrying out advanced malware attacks on critical infrastructures, data centers, and private and public organizations, detecting, responding to, and investigating such intrusions is critical to information security professionals. Malware analysis and memory forensics have become must-have skills to fight advanced malware, targeted attacks, and security breaches. This book teaches you the concepts, techniques, and tools to understand the behavior and characteristics of malware through malware analysis. It also teaches you techniques to investigate and hunt malware using memory forensics. This book introduces you to the basics of malware analysis, and then gradually progresses into the more advanced concepts of code analysis and memory forensics. It uses real-world malware samples, infected memory images, and visual diagrams to help you gain a better understanding of the subject and to equip you with the skills required to analyze, investigate, and respond to malware-related incidents.
Table of Contents (19 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
Index

9. Kernel Callbacks And Timers


The Windows operating system allows a driver to register a callback routine, which will be called when a particular event occurs. For instance, if a rootkit driver wants to monitor the execution and termination of all processes running on the system, it can register a callback routine for the process event by calling the kernel function PsSetCreateProcessNotifyRoutinePsSetCreateProcessNotifyRoutineEx, or PsSetCreateProcessNotifyRoutineEx2. When the process event occurs (starts or exits) the rootkit's callback routine will be invoked, which can then take necessary action such as preventing a process from launching. In the same manner, a rootkit driver can register a callback routine to receive notifications when an image (EXE or DLL) gets loaded into memory, when file and registry operations are performed, or when the system is about to be shut down. In other words, the callback functionality gives the rootkit driver the ability to monitor system activities...