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Malware Analysis Techniques

Malware Analysis Techniques

By : Dylan Barker
4.8 (9)
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Malware Analysis Techniques

Malware Analysis Techniques

4.8 (9)
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)
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1
Section 1: Basic Techniques
6
Section 2: Debugging and Anti-Analysis – Going Deep
11
Section 3: Reporting and Weaponizing Your Findings
14
Section 4: Challenge Solutions

Hashing prevention

Perhaps the most common IOC collected by malware analysts, file hashes in MD5, SHA256, and SSDEEP are the fingerprints of files we've previously discussed during static analysis.

While even one bit being changed will alter the entirety of a standard, static cryptographic hash, oftentimes a single hash or small subset of hashes is utilized in any given attack, and being able to quickly blacklist and prevent the execution of these can greatly hinder an attack and buy necessary time to implement better preventative controls, or enable the IR team to find the point of ingress and close it off.

Thankfully, there are several ways we can implement hash-based blocking very quickly and efficaciously across an environment.

Blocking hash execution with Group Policy

Previously in the world of Windows, the primary way to block the execution of files was only via their filename. Within the world of adversarial tools such as Cobalt Strike and Metasploit, however...

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