Advanced Malware Analysis Fundamentals
Malware analysis is the process of understanding the behavior and purpose of malicious software. It involves examining malware samples to determine their functionality, origin, and potential impact on systems and networks.
Static Analysis
Static analysis examines malware without executing it:
- File Analysis: Examining file properties, structure, and metadata
- String Analysis: Extracting and analyzing text strings from the binary
- Code Analysis: Disassembling and analyzing the executable code
- Import Analysis: Examining API calls and library dependencies
Dynamic Analysis
Dynamic analysis involves executing malware in a controlled environment:
- Sandboxing: Running malware in isolated environments
- Process Monitoring: Tracking system calls and process behavior
- Network Monitoring: Capturing and analyzing network traffic
- Registry Monitoring: Tracking registry modifications
Behavioral Analysis
Understanding how malware behaves when executed:
- Process Behavior: How malware creates and manages processes
- File System Behavior: File creation, modification, and deletion patterns
- Network Behavior: Communication patterns and data exfiltration
- Persistence Mechanisms: How malware maintains access to systems
Reverse Engineering
Deep analysis of malware code and functionality:
- Disassembly: Converting binary code to assembly language
- Decompilation: Converting assembly to higher-level code
- Code Analysis: Understanding algorithms and logic flow
- Obfuscation Analysis: Dealing with code obfuscation techniques
Malware Classification
Common types of malware and their characteristics:
- Viruses: Self-replicating malware that infects other files
- Worms: Self-replicating malware that spreads across networks
- Trojans: Malware disguised as legitimate software
- Ransomware: Malware that encrypts files and demands payment
- Rootkits: Malware that hides its presence on systems