Botnets zijn networks van geïnfecteerde computers die remote controlled worden door cybercriminelen. In 2025 participeren miljoen Nederlandse devices onwetend in botnets.
Hoe botnets werken
Malware infecteert computers die dan part worden van een botnet - zombie army voor cybercrime doeleinden.
- Infection vector - email attachments, drive-by downloads
- Command & Control - centralized botnet management
- Payload delivery - malware installation
- Communication - encrypted channels naar controllers
- Monetization - DDoS attacks, crypto mining, spam
Nederlandse botnet statistics
NCSC rapporteert dat 200,000+ Nederlandse IP adressen jaarlijks part zijn van botnets - vaak zonder user awareness.
Infection signs: Slow performance, high network usage, unknown processes, cryptocurrency mining, unexpected pop-ups. Je computer kan botnet member zijn zonder symptoms.
Common malware types
Verschillende malware soorten hebben verschillende doelen en infection methods.
| Malware Type | Purpose | Symptoms | Prevention |
|---|---|---|---|
| Trojans | Remote access | Slow PC | Antivirus |
| Ransomware | File encryption | Locked files | Backups |
| Cryptominers | Mining crypto | High CPU usage | Ad blockers |
| Spyware | Data theft | Privacy invasion | Anti-malware |
Malware protection layers
Defense in depth approach met multiple security layers is most effective tegen sophisticated threats.
Security stack: Windows Defender + Malwarebytes, uBlock Origin browser extension, regular updates, email caution, backup strategy. Layered approach beats single solution.
Nederlandse cybersecurity resources
NCSC, Cyberveilig Nederland, en local security awareness programs helpen citizens tegen malware threats.
Incident response: Suspected infection? Disconnect internet, run full antivirus scan, check running processes, change passwords, restore van clean backup. Document everything.
IoT en botnet expansion
Smart devices met poor security worden increasingly targeted. Router hijacking, smart camera takeovers - botnet surface area groeit exponentially.