Exploring Malware

Understanding the Basics of Computer Malware

Gregory M. Kapfhammer

September 23, 2024

Exploring Malware Understanding the Basics of Computer Malware Gregory M. Kapfhammer September 23, 2024

Exploring Malware
What is malware?
Probing Questions: have you every encountered malware? What happened? How did you resolve it? Lessons?
Malware Targets
Zero-Day Exploits
“gaining access to anyones [sic] browser without them even visiting a website”
Surveying the Landscape of Malware
Understanding Worms
Understanding Viruses
Understanding Trojan Horses
Exploring Ransomware
Understanding Spyware
Insights About Malware
Installation with curl and bash! We do this?!?
Malware Delivery
Malware Source Code
Compromise Indicators
Using the strings command
Obfuscating Malware
Obfuscation Details
System Configuration Data
Importance of System Configuration
Collecting System Data
Sample Program Output
Obfuscation of Data Collection
Using Pyarmor for Obfuscation
Recapping Malware Obfuscation
“Cyber Kill Chain” Steps
Case Study: Emotet Ransomware
Wrapping Up on Malware