Understanding Botnets: Key Points
A botnet is a network of infected devices—such as computers, smartphones, and IoT devices—that are controlled remotely by cybercriminals. These devices, often referred to as "bots" or "zombies," are hijacked with malicious software (malware) and used to carry out various harmful activities, without the owner's knowledge.
How Botnets Work
Infection: Devices are infected through methods like phishing, malicious websites, or exploiting software vulnerabilities.
Command and Control: Once infected, the devices communicate with a central server to receive commands from the botmaster.
Malicious Activities: The botnet can be used for DDoS attacks, data theft, spamming, cryptojacking, or distributing more malware.
Common Threats
DDoS Attacks: Botnets can overwhelm websites with traffic, causing downtime.
Data Theft: Stolen credentials and personal data can be sold or misused.
Cryptojacking: Devices are used to mine cryptocurrency, consuming resources.
Reputation Damage: Attacks on businesses can damage their brand image.
Notable Botnets
- Mirai (2016): Used IoT devices for large-scale DDoS attacks.
###How to Protect Against Botnets
Keep Software Updated: Regularly update operating systems and apps to patch vulnerabilities.
Use Antivirus Software: Detect and block malware.
Enable Strong Passwords & MFA: Protect accounts and devices.
Monitor Network Traffic: Detect suspicious behavior that might indicate a botnet attack.