ddos
Large-scale DDoS attacks disrupted Threema secure messaging service
Multiple distributed denial-of-service (DDoS) attacks targeted the Threema secure messaging service earlier this week, causing severe disruptions to communications. Organizations using Threema On-Prem did not experience any issues because they rely on their own infrastructure. In a post-mortem report on Friday, the end-to-end encrypted instant messaging service said that the attacks were difficult to defend […]
New Evooo1Bot Linux botnet turns routers into traffic relay nodes
A new Mirai-based modular Linux botnet malware called Evooo1Bot has been targeting internet-facing gateway devices, turning them into SOCKS5 traffic relay nodes. The malware’s capabilities extend beyond turning devices into proxy nodes and include credential theft, SSH brute-forcing, and launching distributed denial-of-service (DDoS) attacks. Since at least July, Evooo1Bot has been targeting devices from Alcatel, […]
DDoS attacks over 1 Tbps surged fivefold in the second quarter
Cloudflare says it mitigated more than 800 network-layer distributed denial-of-service (DDoS) attacks exceeding 1 Tbps in the second quarter of the year. Compared with the first quarter, when the company recorded just 130 attacks above 1 Tbps, the latest figure represents a more than fivefold increase. Cloudflare is a major web infrastructure and security firm […]
New Dysphoria DDoS botnet spreads to 200k devices worldwide
A botnet called Dysphoria has compromised around 200,000 devices across the world and is using them for distributed denial of service (DDoS) attacks and traffic relay operations. According to QiAnXin XLab cybersecurity researchers, Dysphoria evolved from the ‘jackskid’ and ‘fbot’ malware by adding a covert blockchain-based command-and-control (C2) resolution mechanism. Specifically, the botnet uses Ethereum […]
C0XMO botnet spreads via DD-WRT router flaw, kills rival malware
A new variant of the Gafgyt botnet called C0XMO is targeting DD-WRT router firmware and can move to other device types with various CPU architectures. The researchers found samples for ARM, MIPS, PowerPC, SuperH, x86, x86_64, and other architectures, featuring exploits for DVRs, routers, video management platforms, and Android-based devices. The botnet was seen targeting […]
US and Canada arrest and charge suspected Kimwolf botnet admin
U.S. and Canadian authorities arrested and charged a Canadian man with operating the KimWolf distributed denial-of-service (DDoS) botnet, which infected nearly two million devices worldwide. 23-year-old Jacob Butler (also known online as “Dort”) was arrested by Canadian authorities in Ottawa on Wednesday pursuant to an extradition warrant. According to a criminal complaint unsealed on Thursday […]
Google accidentally exposed details of unfixed Chromium flaw
Google has accidentally leaked details about an unfixed issue in Chromium that keeps JavaScript running in the background even when the browser is closed, allowing remote code execution on the device. The flaw was reported by security researcher Lyra Rebane and acknowledged as valid in December 2022, as per the thread on Chromium Issue Tracker. […]
New Mirai campaign exploits RCE flaw in EoL D-Link routers
A new Mirai-based malware campaign is actively exploiting CVE-2025-29635, a high-severity command-injection vulnerability affecting D-Link DIR-823X routers, to enlist devices into the botnet. CVE-2025-29635 allows an attacker to execute arbitrary commands on remote devices by sending a POST request to a vulnerable endpoint, triggering remote command execution (RCE). Akamai’s SIRT, which detected the Mirai campaign in March […]
Operation PowerOFF identifies 75k DDoS users, takes down 53 domains
More than 75,000 individuals using distributed denial-of-service (DDoS) platforms for disruptive attacks have been warned through emails and letters during the latest phase of the Operation PowerOFF international law enforcement action. The ongoing operation is supported by Europol and involves authorities in 21 countries. Coordinated efforts led to the arrest of four people, taking offline […]
International joint action disrupts world’s largest DDoS botnets
Authorities from the United States, Germany, and Canada have taken down Command and Control (C2) infrastructure used by the Aisuru, KimWolf, JackSkid, and Mossad botnets to infect Internet of Things (IoT) devices. The joint law enforcement action also targeted virtual servers, internet domains, and other infrastructure used by the four botnets to launch hundreds of […]