Stay informed on botnet trends, attacks, and defenses. Get the latest updates and expert insights on botnet threats in information security.
Search across headline titles and summaries.
Background for this topic.
A botnet is a network of compromised internet-connected devices controlled remotely by an attacker through malware. These devices, known as bots, receive commands from centralized or decentralized command-and-control (C2) servers to perform coordinated actions such as launching Distributed Denial of Service (DDoS) attacks, sending spam, or distributing additional malware. Botnets vary in size and complexity, often leveraging vulnerabilities in devices or weak authentication to propagate.
In information security, botnets pose significant risks including large-scale service disruptions from DDoS attacks and the unauthorized use of infected devices for malicious activities. Detecting botnet activity involves monitoring network traffic for unusual patterns and identifying communication with known C2 infrastructure. Effective defense includes timely patching of vulnerable systems, blocking C2 domains or IPs based on threat intelligence, and isolating infected hosts to prevent further spread or damage. Coordinated efforts to disrupt botnet infrastructure can reduce their operational impact.
A rapidly growing botnet is ensnaring routers, DVRs, and servers across the Internet to target more than 100 victims every day in distributed denial-of-service (DDoS) attacks. [...]
A months-long global operation led by Microsoft's Digital Crimes Unit (DCU) has taken down dozens of domains used as command-and-control (C2) servers by the notorious ZLoader botnet. [...]
A new Mirai-based botnet malware named Enemybot has been observed growing its army of infected devices through vulnerabilities in modems, routers, and IoT devices, with the threat actor operating it known as Keksec. [...]
The Qbot botnet is now pushing malware payloads via phishing emails with password-protected ZIP archive attachments containing malicious MSI Windows Installer packages. [...]