Latest cybersecurity reporting from selected sources.

C0XMO is a new Gafgyt botnet variant exploiting old router flaws, spreading across IoT devices, killing rivals, and enabling large-scale DDoS attacks. In March 2026, FortiGuard Labs discovered a new variant of the Gafgyt botnet, dubbed C0XMO, which is noticeably more capable than its predecessors. The malware spreads through CVE-2021-27137, a stack buffer overflow in […]

FortiGuard Labs has identified a Mirai-based Nexcorium campaign actively exploiting CVE-2024-3721 in TBK DVR devices

Threat actors are exploiting security flaws in TBK DVR and end‑of‑life (EoL) TP-Link Wi-Fi routers to deploy Mirai-botnet variants on compromised devices, according to findings from Fortinet FortiGuard Labs and Palo Alto Networks Unit 42

Even worse, it might have been a 'test run' for future attacks A Mirai-based botnet named ShadowV2 emerged during last October's widespread AWS outage, infecting IoT devices across industries and continents, likely serving as a "test run" for future attacks, according to Fortinet's FortiGuard Labs.…

Also: Fortinet Flaws, Aisuru Botnet and Dutch Police Seize Bulletproof Host ServersThis week, the root cause of the Cloudflare outage, active exploitation of Fortinet flaws, Logitech disclosed a data breach, Microsoft headed off a record-breaking botnet attack, Dutch police seized bulletproof hosting servers and Princeton University disclosed a data breach after a phishing attack.

FortiGuard Labs Identifies Botnet Exploiting Decade-Old D-Link VulnerabilityHackers are taking advantage of D-Link home routers left unpatched for a decade and turning them into a newly formed botnet researchers dubbed "Goldoon." The vulnerability allows attackers to execute arbitrary commands remotely via the proprietary Home Network Administration Protocol.

A new botnet consisting of firewalls and routers from Cisco, DrayTek, Fortinet, and NETGEAR is being used as a covert data transfer network for advanced persistent threat actors, including the China-linked threat actor called Volt Typhoon

Fortiguard Labs identified multiple threat actors leveraging CVE-2023-46604

FortiGuard Labs said the new campaign incorporates 13 distinct payloads

Fortinet has issued an alert warning that the Gafgyt botnet malware is actively trying to exploit a vulnerability in the end-of-life Zyxel P660HN-T1A router in thousands of daily attacks. [...]

A new malware called Condi has been observed exploiting a security vulnerability in TP-Link Archer AX21 (AX1800) Wi-Fi routers to rope the devices into a distributed denial-of-service (DDoS) botnet

Tracked CVE-2023-25717, the flaw was recently exploited by the AndoryuBot botnet, says Fortinet

The Zerobot DDoS botnet has received substantial updates that expand on its ability to target more internet-connected devices and scale its network

A new Go-based botnet has been spotted scanning and brute-forcing self-hosted websites using the WordPress content management system (CMS) to seize control of the targeted systems

A novel Go-based botnet called Zerobot has been observed in the wild proliferating by taking advantage of nearly two dozen security vulnerabilities in the internet of things (IoT) devices and other software

Cybersecurity researchers have unearthed new samples of malware called RapperBot that are being used to build a botnet capable of launching Distributed Denial of Service (DDoS) attacks against game servers

A threat group that pursues crypto mining and distributed denial-of-service (DDoS) attacks has been linked to a new botnet called Enemybot, which has been discovered enslaving routers and Internet of Things (IoT) devices since last month

Keksec malware used for DDoS attacks, may spread to cryptomining, Fortinet says A prolific threat group known for deploying distributed denial-of-service (DDoS) and cryptomining attacks is running a new botnet that is built using the Linux-based Gafgyt source code along with some code from the Mirai botnet malware.…

A variant of the Mirai botnet called Beastmode has been observed adopting newly disclosed vulnerabilities in TOTOLINK routers between February and March 2022 to infect unpatched devices and expand its reach potentially