Cybersecurity — Malware
Types of malware
| Type | Description |
|---|---|
| Virus | Attaches to files |
| Worm | Self-replicating |
| Trojan | Disguised as legitimate |
| Ransomware | Encrypts data |
| Spyware | Monitors activity |
| Rootkit | Hides presence |
Detection
# Hash comparison
import hashlib
def file_hash(filepath):
sha256_hash = hashlib.sha256()
with open(filepath, "rb") as f:
for byte_block in iter(lambda: f.read(4096), b""):
sha256_hash.update(byte_block)
return sha256_hash.hexdigest()
Antivirus tools
- ClamAV: Open source
- YARA: Pattern matching
- Volatility: Memory forensics
Prevention
- Keep systems updated
- Use antivirus software
- Don't open suspicious attachments
- Enable UAC
Best practices
- Regular scanning
- Behavior monitoring
- Endpoint detection
- User education
Mini Practice
- Scan for malware
- Use YARA rules
- Analyze suspicious files
- Implement detection
Up Next
Continue with Phishing - Social engineering attacks.
Related Topics
Frequently Asked Questions about Malware
What is Malware in Cybersecurity?
Malware is a fundamental concept in Cybersecurity. This lesson explains it step by step with clear examples, making it easy for beginners to understand.
How do I learn Malware?
Start by reading the explanation above, then try the code examples. Practice by modifying the examples and experimenting with different values. Hands-on practice is the best way to learn Malware.
Why is Malware important in Cybersecurity?
Malware is essential for Cybersecurity development. Understanding this concept will help you write better code and solve real-world problems more effectively.