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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

Case study: Andromeda

Andromeda is a now (mostly) dead worm that was first spotted in 2011. Andromeda used a number of techniques to infect hosts, but commonly was spotted on USB media when the following command was detected upon plugging in the drive:

C:\windows\system32\cmd.exe'' /c start rundll32 \ececacacaeaeaecececacacaeaeaecececacacaeaeaececca.ececacacaeaeaecececacacaeaeaecececacacaeaeaececca,CaWSOKGsokgcOKaY

Upon executing via runDLL32, the malware would first check to see if the machine was a VM or debugging workstation by utilizing a list of blacklisted processes in memory and comparing it to a list of running processes utilizing the CreateToolhelp32Snapshot API and then cycling through the processes.

If all checks were passed, the malware would then copy itself to %ALLUSERSPROFILE% and rename the binary randomly prepended with MS.

Finally, to achieve persistence, the Andromeda malware would create a value at registry key HKCU\Software\Microsoft\Windows...

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