Tag Archives: botnets

14,000 routers are infected by malware that’s highly resistant to takedowns

Researchers say they have uncovered a takedown-resistant botnet of 14,000 routers and other network devices—primarily made by Asus—that have been conscripted into a proxy network that anonymously carries traffic used for cybercrime. The malware—dubbed KadNap—takes hold by exploiting vulnerabilities that have gone unpatched by their owners, Chris Formosa, a researcher at security firm Lumen’s Black… Read More »

Massive botnet that appeared overnight is delivering record-size DDoSes

A newly discovered network botnet comprising an estimated 30,000 webcams and video recorders—with the largest concentration in the US—has been delivering what is likely to be the biggest denial-of-service attack ever seen, a security researcher inside Nokia said. The botnet, tracked under the name Eleven11bot, first came to light in late February when researchers inside Nokia’s… Read More »

Thousands of hacked TP-Link routers used in years-long account takeover attacks

Hackers working on behalf of the Chinese government are using a botnet of thousands of routers, cameras, and other Internet-connected devices to perform highly evasive password spray attacks against users of Microsoft’s Azure cloud service, the company warned Thursday. The malicious network, made up almost entirely of TP-Link routers, was first documented in October 2023… Read More »

US sanctions operators of “free VPN” that routed crime traffic through user PCs

Getty Images reader comments 17 The US Treasury Department has sanctioned three Chinese nationals for their involvement in a VPN-powered botnet with more than 19 million residential IP addresses they rented out to cybercriminals to obfuscate their illegal activities, including COVID-19 aid scams and bomb threats. The criminal enterprise, the Treasury Department said Tuesday, was… Read More »

Hacker free-for-all fights for control of home and office routers everywhere

reader comments 2 Cybercriminals and spies working for nation-states are surreptitiously coexisting inside the same compromised name-brand routers as they use the devices to disguise attacks motivated both by financial gain and strategic espionage, researchers said. In some cases, the coexistence is peaceful, as financially motivated hackers provide spies with access to already compromised routers… Read More »

Thousands of phones and routers swept into proxy service, unbeknownst to users

Getty Images reader comments 22 Crooks are working overtime to anonymize their illicit online activities using thousands of devices of unsuspecting users, as evidenced by two unrelated reports published Tuesday. The first, from security firm Lumen Labs, reports that roughly 40,000 home and office routers have been drafted into a criminal enterprise that anonymizes illicit… Read More »

Attack wrangles thousands of web users into a password-cracking botnet

Getty Images reader comments 23 Attackers have transformed hundreds of hacked sites running WordPress software into command-and-control servers that force visitors’ browsers to perform password-cracking attacks. A web search for the JavaScript that performs the attack showed it was hosted on 708 sites at the time this post went live on Ars, up from 500… Read More »

Linux devices are under attack by a never-before-seen worm

Getty Images reader comments 12 For the past year, previously unknown self-replicating malware has been compromising Linux devices around the world and installing cryptomining malware that takes unusual steps to conceal its inner workings, researchers said. The worm is a customized version of Mirai, the botnet malware that infects Linux-based servers, routers, Web cameras, and… Read More »

Microsoft discovers Windows/Linux botnet used in DDoS attacks

reader comments 8 with 0 posters participating Share this story Microsoft researchers have discovered a hybrid Windows-Linux botnet that uses a highly efficient technique to take down Minecraft servers and performs distributed denial-of-service attacks on other platforms. Dubbed MCCrash, the botnet infects Windows machines and devices running various distributions of Linux for use in DDoS… Read More »

Botnet that hid for 18 months boasted some of the coolest tradecraft ever

reader comments 55 with 34 posters participating Share this story It’s not the kind of security discovery that happens often. A previously unknown hacker group used a novel backdoor, top-notch tradecraft, and software engineering to create an espionage botnet that was largely invisible in many victim networks. The group, which security firm Mandiant is calling… Read More »