What are common forms of botnet attacks?

Asked by: Mr. August Little  |  Last update: June 25, 2026
Score: 4.1/5 (50 votes)

Botnet attacks are orchestrated by a "bot herder" using a network of infected, hijacked devices—computers, IoT, and servers—to execute large-scale, automated malicious actions. Common types include Distributed Denial-of-Service (DDoS) for crashing sites, phishing/spam campaigns, credential stuffing, click fraud, and illicit cryptocurrency mining.

What are the types of botnet attacks?

Types of Botnet Attacks

  • Distributed Denial-of-Service (DDoS) Attacks. ...
  • Credential Theft. ...
  • Network Security Measures. ...
  • Endpoint Protection. ...
  • Access Controls and Authentication.

What is a real life example of a botnet?

Real-life botnets are networks of compromised devices—computers, IoT, or smartphones—controlled by attackers to perform massive, coordinated malicious actions. Notable examples include Mirai (2016), which hijacked IoT devices to crash major websites, and Zeus, which specialized in stealing banking credentials, causing over $120 million in losses.

How do I know if I'm in a botnet?

Signs your computer could be part of a botnet

Unexplained activity: You notice that your processor, hard drive, or computer fans are running excessively and without cause. Slow Internet: Your Internet is slower than usual.

Which malware type is commonly used in botnet attacks?

A botnet is a network of compromised computers or devices infected with malware and remotely controlled by an attacker (botmaster) through a Command and Control (C&C) system. These infected devices are called bots or zombies. Botnets are created using malware such as trojans, worms, or spyware.

Denial of Service Attacks Explained

38 related questions found

What are the 12 most common types of cyber attacks?

Top 15 Most Common Types of Cyberattacks

  • Malware attacks. ...
  • Phishing and spear phishing. ...
  • Denial of Service (DoS) and Distributed Denial of Service (DDoS) ...
  • Man-in-the-Middle (MitM) attacks. ...
  • SQL Injection. ...
  • Zero-day exploits. ...
  • Ransomware attacks.

What are some famous botnet attacks?

The Most Famous DDoS Attacks (for Now)

  • A New Age of DDoS: Hyper-volumetric DDoS Attacks, 2025. ...
  • Novel DDoS Attack: HTTP/s Rapid Reset Hits Multiple Targets, 2023. ...
  • The Google Attack, 2020. ...
  • The AWS DDoS Attack in 2020. ...
  • The Mirai Krebs and OVH DDoS Attacks in 2016. ...
  • The Mirai Dyn DDoS Attack in 2016. ...
  • The GitHub Attack in 2018.

What does a botnet look like?

A botnet is a coordinated network of internet-connected devices—including computers, mobile phones, and IoT hardware—infected with specialized malware that grants remote control to a single attacking party.

Can a firewall stop a botnet?

A firewall can help prevent both botnet infections and DDoS attacks if it is set up correctly. A firewall can block malicious sites from being browsed and detect when traffic spikes fit a botnet attack scenario and throttle network calls.

What is the most famous cyberattack?

Phishing is widely considered the most common cyber attack, with over 90% of successful cyber-attacks beginning with a phishing email. These attacks use social engineering to trick individuals into revealing sensitive information, such as passwords or financial details, by impersonating legitimate entities.

How to remove botnet virus?

How to Remove a Botnet:

  1. Disconnect from the Internet: Disconnecting the infected device from the Internet can prevent the botmaster from issuing further commands and receiving information from the bot.
  2. Run an antivirus scan: Antivirus software can detect and remove the malware that is used to control the bot.

Can I tell if my computer is being monitored?

Yes, you can tell if your computer is monitored by looking for signs like sluggish performance, unexplained webcam activity, unusual network traffic, or unrecognized apps in your task manager. Common indicators include high CPU/RAM usage, browser extensions you didn't install, and unexpected security setting changes.

How to test if someone is a bot online?

An easy way to tell if an account is a bot or a real person is to check the user profile. Bots usually lack photos, have inconsistent photos or AI generated photos. They lack bios or the bios they do have are generic.

How does a botnet get on your computer?

Botnets spread through viruses and worms and once installed on the victim's computer they use the internet to make contact with a control computer. At this point, the infected computer (often called a zombie) will do nothing more except periodically check for instructions from the control computer.

What are the top 3 malware types?

Malware Explained

Many types of malware in cybersecurity include viruses, worms, spyware, and ransomware.

What is an example of a botnet virus?

Real-world examples of botnets

Mirai specifically targeted Internet of Things devices with default or weak credentials. Zeus/Zbot: First identified in 2007, this banking trojan specialized in stealing financial information through keystroke logging and form grabbing.

What is the most hacked website in the world?

Based on data regarding user accounts and breach frequency, Yahoo is historically considered the most breached entity, with 3 billion user accounts compromised in 2013. However, regarding recent, frequent account takeover attempts, Facebook is widely considered the most targeted platform, with 27% of social media hacks in 2026.

What are the two most common cyber attacks?

1. DoS and DDoS attacks. A denial-of-service (DoS) attack is designed to overwhelm the resources of a system to the point where it is unable to reply to legitimate service requests. A distributed denial-of-service (DDoS) attack is similar in that it also seeks to drain the resources of a system.

What is 90% of cyber attacks?

More than 90% of successful cyber-attacks begin with a phishing email. These attacks, which target individuals rather than technical firewalls, utilize deceptive emails, links, or websites to steal credentials, deliver malware, or initiate ransomware, according to data from CISA.