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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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.
The U.S. government on Thursday said it disrupted a botnet comprising hundreds of small office and home office (SOHO) routers in the country that was put to use by the Russia-linked APT28 actor to conceal its malicious activities
Beijing, now Moscow.… Who else is hiding in broadband gateways? The US government today said it disrupted a botnet that Russia's GRU military intelligence unit has been using for phishing expeditions, spying, credential harvesting, and data theft against American and foreign governments and other strategic targets.…
The feds disrupted a Russian intelligence SOHO router botnet notable for being built with Moobot malware rather than custom code.
GRU Hackers Commandeered 'Moobot' for CyberespionageThe U.S. federal government says it disrupted a criminal botnet that Russian military intelligence had converted into a platform for global cyberespionage. The malware targets Linux-based IoT devices - in this case, routers made by New York manufacturer Ubiquiti.
The FBI took down a botnet of small office/home office (SOHO) routers used by Russia's Main Intelligence Directorate of the General Staff (GRU) to proxy malicious traffic and to target the United States and its allies in spearphishing and credential theft attacks. [...]
The FBI took down a botnet of small office/home office (SOHO) routers used by Russia's Main Intelligence Directorate of the General Staff (GRU) in spearphishing and credential theft attacks targeting the United States and its allies. [...]
Qakbot Wouldn't Be the First Trojan to Come Back After a TakedownTakedowns aren't always forever in cyberspace. Months after a U.S. law enforcement operation dismantled the notorious Qakbot botnet, security researchers said signs are pointing to a resurgence. Someone with access to the Qakbot - also known as Qbot - source code is experimenting with new builds.
A malware with every malicious feature in the book is adding new pages, with a fresh ability to invade the lowest levels of a Windows machine.
The Glupteba botnet has been found to incorporate a previously undocumented Unified Extensible Firmware Interface (UEFI) bootkit feature, adding another layer of sophistication and stealth to the malware