A botnet or zombie army, is hundreds of thousands of computers working together with the goal of forwarding malware or launching an attack, and represent a serious threat.
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- [Instructor] A Botnet, or Zombie Army is hundreds of thousands of computers working together, with the goal of forwarding malware, or launching an attack. The infected machines can span the globe. The tasks that a Zombie Army can participate in, include: sending spam or malware, steal confidential information, and then relay this back to the bot master. Or, launch a distributed Denial of Service attack.
The Botnet is created by disseminating code to unsuspecting hosts, or zombies, by getting them to download some code, so they can participate in the Botnet. The zombies communicate with the bot herders, or bot master at a predefined time, or when the bot master triggers a go signal. A Bot Code will do the following: initialize, phone home, go into a rest stage, wait to hear from the mothership, and then execute bot activity.
Protect against being a zombie. Use antivirus. Increase the security settings on your browser. Think before clicking on a link, or downloading something. Keep patches updated in the operating system, and the browser. And, use a firewall with egress filtering, to prevent the bot from phoning home. Botnets represent a serious threat, as many zombies have been infected without their knowledge, and the infection remains undetected for long periods of time.
Let's take a look at a Botnet Army at work. Here, you can see multiple locations where Botnet armies are trying to launch an attack.
Learn more about the Certified Ethical Hacking exam and the benefits of certification at https://www.eccouncil.org/programs/certified-ethical-hacker-ceh/.
- Understanding viruses and worms
- Recognizing a virus attack
- Identifying different virus types
- Creating a simple virus
- Analyzing malware
- Countering malware