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

Hiding in plain sight

Malicious processes are often obvious and stand out to experienced malware analysts or to anyone who has a familiarity with which process(es) should be running on a standard Windows installation.

As with anything in analysis and prevention, this is a bit of an arms race with the adversaries responsible for writing malicious code. A common set of techniques utilized by malware authors falls under the category of process injection.

Adversaries can employ a number of techniques in order to accomplish process injection, including spawning new processes in a suspended state, allocating memory within them, and then writing malicious code into this created memory space (process hollowing), or injecting a thread into an existing process.

Some of these techniques can be inferred by the presence of certain API calls within the binary, as outlined in Chapter 6, Advanced Dynamic Analysis – Looking at Explosions. The API calls are listed here:

  • VirtualAllocEx...