Book Image

Malware Analysis Techniques

By : Dylan Barker
Book Image

Malware Analysis Techniques

By: Dylan Barker

Overview of this book

Malicious software poses a threat to every enterprise globally. Its growth is costing businesses millions of dollars due to currency theft as a result of ransomware and lost productivity. With this book, you'll learn how to quickly triage, identify, attribute, and remediate threats using proven analysis techniques. Malware Analysis Techniques begins with an overview of the nature of malware, the current threat landscape, and its impact on businesses. Once you've covered the basics of malware, you'll move on to discover more about the technical nature of malicious software, including static characteristics and dynamic attack methods within the MITRE ATT&CK framework. You'll also find out how to perform practical malware analysis by applying all that you've learned to attribute the malware to a specific threat and weaponize the adversary's indicators of compromise (IOCs) and methodology against them to prevent them from attacking. Finally, you'll get to grips with common tooling utilized by professional malware analysts and understand the basics of reverse engineering with the NSA's Ghidra platform. By the end of this malware analysis book, you’ll be able to perform in-depth static and dynamic analysis and automate key tasks for improved defense against attacks.
Table of Contents (17 chapters)
Section 1: Basic Techniques
Section 2: Debugging and Anti-Analysis – Going Deep
Section 3: Reporting and Weaponizing Your Findings
Section 4: Challenge Solutions

Persistence identification

We'll begin our script by making the assumption that you have received an alert within your EDR (Endpoint detection and response) platform of choice and are aware of a malicious binary that has been executed on an endpoint. From here, as we've learned in past chapters, it will be key to identifying persistence mechanisms (methodologies that malware utilizes to run on the system each time the system reboots, or a user logs in) that have been established by the malware, meaning it may continue to run regardless of user action.

Let's now move on to a few code examples that will help to triage the most common persistence methodologies.

Registry keys

As previously discussed in the preceding section, there are four primary Run Keys within the Windows operating system. Other methods of persistence within the Windows registry exist as well, but for now, we'll focus on the four primary ones:

  • HKEY_LOCAL_MACHINE\Software\Microsoft...