ArticleResearch

Botnets Explained: Is Your Computer Part of a Zombie Army?

Botnets are networks of infected devices controlled by cybercriminals. Find out how they work, what they do, and how to check if your IP is involved.

Jean-Vincent QUILICHINIJean-Vincent QUILICHINI
2 min read
Cover Image for Botnets Explained: Is Your Computer Part of a Zombie Army?
Signal
Context
Action

The Zombie Army

Your computer might be working for a criminal right now, and you wouldn't even know it. A botnet is a collection of internet-connected devices (PCs, servers, IoT devices) that have been infected and are controlled by a common attacker.

What Do Botnets Do?

Individually, an infected device (a "bot") has limited capacity. Together, thousands of bots can cause widespread damage:

  1. DDoS Attacks: Flooding a website with traffic to knock it offline.
  2. Spam Campaigns: Sending millions of phishing emails.
  3. Credential Cracking: Trying stolen passwords on Netflix, banking, or gaming sites.

How Devices Get Recruited

  • Weak Passwords: IoT devices (like smart cameras) often have default passwords like admin/admin. Bots scan the web for these.
  • Unpatched Software: Exploiting security holes in your browser or OS.
  • Malware: Downloading a "free game" that includes a botnet installer.

Signs You Are Infected

  • Slow Internet: Your bandwidth is being used to attack others.
  • High Fan Speed: Your processor is working hard even when you aren't doing anything.
  • Strange Pop-ups: Unexpected ads or messages.

How to Check and Clean

  1. Check Your IP: Use our IP Reputation Tool to see if your public IP address has been flagged for spam or botnet activity.
  2. Update Everything: Keep your OS and antivirus updated.
  3. Reboot: Some IoT malware lives in memory. A simple restart can sometimes clear it (though changing the password is required to stop reinfection).

Don't let your device be a pawn in a cyber war. Secure your devices and monitor your network reputation.

Read next

Protect Your Infrastructure

Check any IP or domain against our threat intelligence database with indexed records.

Try the IP / Domain Checker