Stay informed on botnet trends, attacks, and defenses. Get the latest updates and expert insights on botnet threats in information security.
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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.
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TrendAI™ Research analyzed over 200 Gemini CLI session logs showing how a Russian-speaking threat actor used AI to run a live botnet, finishing a full C&C migration in six minutes while doing just 11% of the work himself.
Continuous investigation on the Water Saci campaign reveals innovative email-based C&C system, multi-vector persistence, and real-time command capabilities that allow attackers to orchestrate coordinated botnet operations, gather detailed campaign intelligence, and dynamically control malware activity across multiple infected machines.
Trend™ Research and ZDI Threat Hunters have identified a large-scale RondoDox botnet campaign exploiting over 50 vulnerabilities across more than 30 vendors, including flaws first seen in Pwn2Own contests.
This blog uncovers an active campaign exploiting CVE-2025-3248 in Langflow versions before 1.3.0 that deploys the Flodrix botnet, enabling threat actors to achieve full system compromise, initiate DDoS attacks, and potentially exfiltrate sensitive data.
Since the end of 2024, we have been continuously monitoring large-scale DDoS attacks orchestrated by an IoT botnet exploiting vulnerable IoT devices such as wireless routers and IP cameras.
How does Prometei insidiously operate in a compromised system? This Managed Extended Detection and Response investigation conducted with the help of Trend Vision One provides a comprehensive analysis of the inner workings of this botnet so users can stop the threat in its tracks before it inflicts damage to the system.
Following a three-month hiatus, Emotet spam activities resumed in March 2023, when a botnet known as Epoch 4 began delivering malicious documents embedded in Zip files that were attached to the emails.
We analyze the latest changes in IcedID botnet from a campaign that abuses Google pay per click (PPC) ads to distribute IcedID via malvertising attacks.
During the first quarter of 2022, we discovered a significant number of infections using multiple new Emotet variants that employed both old and new techniques to trick their intended victims into accessing malicious links and enabling macro content.
Trend Micro’s Managed XDR team addressed a Kingminer botnet attack conducted through an SQL exploit. We discuss our findings and analysis in this report.
We discovered active exploitation of a vulnerability in the Spring Framework designated as CVE-2022-22965 that allows malicious actors to download the Mirai botnet malware.
This report discusses the technical capabilities of this Cyclops Blink malware variant that targets ASUS routers and includes a list of more than 150 current and historical command-and-control (C&C) servers of the Cyclops Blink botnet.