Tag: botnet
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DDoS Malware Targets Jenkins to Hit Valve Game Servers
A new DDoS botnet that abuses exposed Jenkins servers to launch powerful attacks against Valve Source Engine game infrastructure, including servers hosting titles like Counter”‘Strike and Team Fortress 2. The campaign shows how a single misconfigured CI server can be turned into a multi”‘platform attack node capable of UDP, TCP, and application”‘layer floods against online…
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Anti-DDoS Firm Heaped Attacks on Brazilian ISPs
A Brazilian tech firm that specializes in protecting networks from distributed denial-of-service (DDoS) attacks has been enabling a botnet responsible for an extended campaign of massive DDoS attacks against other network operators in Brazil, KrebsOnSecurity has learned. The firm’s chief executive says the malicious activity resulted from a security breach and was likely the work…
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China-Backed Groups are Using Massive Botnets in Espionage, Intrusion Campaigns
China-sponsored threat groups like Salt Typhoon and Flax Typhoon are increasingly relying on multiple massive botnets comprising edge and IoT devices to run their cyber espionage and network intrusion campaigns, CISA and other security agencies say. The use of such “covert networks” makes it more difficult to detect and mitigate their campaigns. First seen on…
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Compromised everyday devices power Chinese cyber espionage operations
China-linked threat actors have shifted from individually procured infrastructure to large-scale covert networks, botnets built from compromised routers and other edge … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/04/24/ncsc-china-covert-networks-advisory/
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China-Linked Cyber Actors Turn to Massive Covert Botnets to Evade Detection
A newly issued cybersecurity advisory highlights an evolution in the tactics, techniques and procedures (TTPs) employed by China-Nexus threat actors. The report, released with support from the UK Cyber League and coordinated by the National Cyber Security Centre (NCSC-UK) alongside international partners, sheds light on how Chinese threat actors are relying on large-scale covert networks of compromised…
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China-linked threat actors use consumer device botnets to evade detection, warn UK and partners
UK National Cyber Security Centre (NCSC) warns China-linked hackers use hijacked devices as proxy networks to hide activity and evade detection. UK National Cyber Security Centre (NCSC) and global partners warn that China-linked threat actors now rely on large proxy networks built of hacked consumer devices. Groups control routers, cameras, video recorders, and NAS systems…
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China-Linked Hackers Hide Behind Compromised Routers
Hackers linked to China are increasingly abusing compromised routers and edge devices to build covert networks, enabling stealthy cyber operations that are harder to detect and block. Instead of relying on dedicated servers or purchased hosting, threat actors are now leveraging large-scale botnets made up of hacked small office/home office (SOHO) routers, IoT devices, and…
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China-Backed Hackers Are Industrializing Botnets
China’s state-backed groups are now using covert networks of compromised devices to execute attacks in a low-cost, low-risk, and deniable way. First seen on darkreading.com Jump to article: www.darkreading.com/cyber-risk/china-hackers-industrializing-botnets
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China disguises cyberattacks with ‘covert network’ botnets, US and allies warn
A new security advisory highlights Beijing’s stealthy techniques. First seen on cybersecuritydive.com Jump to article: www.cybersecuritydive.com/news/china-botnets-cyberattacks-covert-networks-advisory/818309/
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Mirai Botnet exploits CVE-2025-29635 to target legacy D-Link routers
Mirai botnet is targeting old D-Link routers using CVE-2025-29635, a command injection flaw exploitable via crafted POST requests after public PoC disclosure. A Mirai botnet is actively exploiting a command injection vulnerability, tracked as CVE-2025-29635, in discontinued D-Link routers, Akamai reports. The flaw allows attackers to inject commands because an attacker-controlled value is copied without…
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New Mirai variants target routers and DVRs in parallel campaigns
Hidden inside newly discovered botnet malware is an unusual message from its creator: >>AI.NEEDS.TO.DIE<>tuxnokill<< by researchers at Akamai, … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/04/22/new-mirai-variants-target-routers-and-dvrs-via-old-flaws/
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SystemBC C2 Server Reveals 1,570+ Victims in The Gentlemen Ransomware Operation
Threat actors associated with The Gentlemen ransomware”‘as”‘a”‘service (RaaS) operation have been observed attempting to deploy a known proxy malware called SystemBC.According to new research published by Check Point, the command-and-control (C2 or C&C) server linked to SystemBC has led to the discovery of a botnet of more than 1,570 victims.”SystemBC establishes SOCKS5 network tunnels within…
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The Gentlemen ransomware now uses SystemBC for bot-powered attacks
A SystemBC proxy malware botnet of more than 1,570 hosts, believed to be corporate victims, has been discovered following an investigation into a Gentlemen ransomware attack carried out by a gang affiliate. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/the-gentlemen-ransomware-now-uses-systembc-for-bot-powered-attacks/
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Attackers Exploit DVR Command Injection Flaw to Deploy Mirai-Based Botnet
FortiGuard Labs has identified a Mirai-based Nexcorium campaign actively exploiting CVE-2024-3721 in TBK DVR devices First seen on infosecurity-magazine.com Jump to article: www.infosecurity-magazine.com/news/mirai-variant-dvr-flaw-iot-botnet/
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TBK DVR Vulnerability CVE-2024-3721 Exploited to Spread Nexcorium DDoS Malware
Hackers are actively exploiting a critical vulnerability in TBK digital video recorder (DVR) devices to deploy a new Mirai-based botnet called Nexcorium. The campaign leverages CVE-2024-3721, an OS command injection vulnerability, highlighting how poorly secured IoT devices continue to fuel large-scale distributed denial-of-service (DDoS) attacks. Threat actors exploit CVE-2024-3721 by manipulating the “mdb” and “mdc”…
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Nexcorium Mirai Variant Weaponises TBK DVR Vulnerability in Fresh IoT Botnet Push
A newly discovered Mirai malware variant named Nexcorium is actively targeting unpatched Internet of Things (IoT) devices. According to recent threat research from FortiGuard Labs, attackers are exploiting a severe vulnerability in TBK DVR systems to build a massive botnet capable of launching destructive distributed denial-of-service (DDoS) attacks. The campaign primarily focuses on CVE-2024-3721, a…
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Mirai Variant Nexcorium Exploits CVE-2024-3721 to Hijack TBK DVRs for DDoS Botnet
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.The attack targeting TBK DVR devices has been found to exploit CVE-2024-3721 (CVSS score: 6.3), a medium-severity command injection vulnerability affecting…
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TP-Link routers face exploitation attempt linked to high-severity flaw
Researchers warn a potential botnet is targeting a vulnerability in end-of-life devices.; First seen on cybersecuritydive.com Jump to article: www.cybersecuritydive.com/news/tp-link-routers-exploitation-high-severity-flaw/817831/
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New Mirai Variant Nexcorium Hijacks DVR Devices for DDoS Attacks
Cybersecurity researchers at Fortinet have discovered Nexcorium, a new Mirai-based malware targeting TBK DVR systems to turn them into a botnet for DDoS attacks. First seen on hackread.com Jump to article: hackread.com/mirai-variant-nexcorium-dvr-devices-ddos-attacks/
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New Mirai Variant Nexcorium Hijacks DVR Devices for DDoS Attacks
Cybersecurity researchers at Fortinet have discovered Nexcorium, a new Mirai-based malware targeting TBK DVR systems to turn them into a botnet for DDoS attacks. First seen on hackread.com Jump to article: hackread.com/mirai-variant-nexcorium-dvr-devices-ddos-attacks/
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PowMix botnet targets Czech workforce
Cisco Talos discovered an ongoing malicious campaign, operating since at least December 2025, affecting a broader workforce in the Czech Republic with a previously undocumented botnet we call “PowMix.” First seen on blog.talosintelligence.com Jump to article: blog.talosintelligence.com/powmix-botnet-targets-czech-workforce/
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13.5M Device Botnet Drives 2 Tbps DDoS Attacks on FinTech, Qrator Finds
A new Qrator Labs report reveals that the largest DDoS botnet has grown to 13.5 million devices, and… First seen on hackread.com Jump to article: hackread.com/botnet-device-drives-2-tbps-ddos-attacks-fintech/
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Newly Discovered PowMix Botnet Hits Czech Workers Using Randomized C2 Traffic
Cybersecurity researchers have warned of an active malicious campaign that’s targeting the workforce in the Czech Republic with a previously undocumented botnet dubbed PowMix since at least December 2025.”PowMix employs randomized command-and-control (C2) beaconing intervals, rather than persistent connection to the C2 server, to evade the network signature detections,” Cisco Talos First seen on thehackernews.com…
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Botnet Exposed: Hackers Leave Worker Access and Root Passwords Wide Open
Hackers have left a live Twitter/X credential”‘stuffing botnet effectively unlocked, exposing its full command”‘and”‘control stack, worker fleet, and root passwords to anyone who knows where to look. The C2 runs on a Windows Server 2019 instance hosted by Hetzner in Falkenstein, Germany, with RDP, SMB, and WinRM all exposed alongside the Flask panel, indicating a…
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Old Docker authorization bypass pops up despite previous patch
Tags: access, api, botnet, cloud, container, credentials, data, docker, exploit, flaw, monitoring, tool, update, vulnerabilityNo one checked oversized requests: While the previous authorization bypass was triggered when request Content-Length was set to 0, no one checked at the time what would happen in the same function if the request exceeded a certain size.”When an API request body exceeds 1MB, Docker’s middleware silently drops the body before your authorization plugin…
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Masjesu botnet targets IoT devices while evading high-profile networks
Masjesu is a stealthy DDoS-for-hire botnet targeting IoT devices, active since 2023 and designed to stay hidden by avoiding high-profile networks. Masjesu is a stealthy botnet active since 2023, advertised as a DDoS-for-hire service. It targets IoT devices like routers and gateways, spanning multiple architectures. Designed for persistence, it executes carefully, avoiding high-profile IP ranges…
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ThreatsDay Bulletin: Hybrid P2P Botnet, 13-Year-Old Apache RCE and 18 More Stories
Thursday. Another week, another batch of things that probably should’ve been caught sooner but weren’t.This one’s got some range, old vulnerabilities getting new life, a few “why was that even possible” moments, attackers leaning on platforms and tools you’d normally trust without thinking twice. Quiet escalations more than loud zero-days, but the kind that matter…
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Patch windows collapse as timeexploit accelerates
N-day exploitation: Rapid7 Labs validated its findings about a more febrile threat environment by producing both n-day and zero-day exploits using AI-assisted research, substantially reducing development time.In practice, n-day bugs, or the development of exploits against patched software, are a bigger problem than headline-grabbing zero-day vulnerabilities, adds Leeann Nicolo, incident response lead at Coalition, a technology…
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New Chaos Variant Targets Misconfigured Cloud Deployments, Adds SOCKS Proxy
Cybersecurity researchers have flagged a new variant ofmalware called Chaosthat’scapable of hitting misconfigured cloud deployments, marking an expansion of the botnet’s targeting infrastructure.”Chaos malware is increasingly targeting misconfigured cloud deployments, expanding beyond its traditional focus on routers and edge devices,” Darktrace said in a new report. First seen on thehackernews.com Jump to article: thehackernews.com/2026/04/new-chaos-variant-targets-misconfigured.html
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How botnet-driven DDoS attacks evolved in 2H 2025
Tags: ai, attack, botnet, dark-web, ddos, defense, dns, finance, government, group, infrastructure, intelligence, international, Internet, iot, jobs, law, LLM, mitigation, network, resilience, risk, service, strategy, tactics, threat, tool, usa, vulnerabilityMassive attack capacity: Demonstration attacks peaked at 30Tbps and 4 gigapackets per second, primarily launched by Internet of Things (IoT) botnets such as Aisuru and TurboMirai variants.AI integration: The use of AI, including dark-web large language models (LLMs), moved from emerging trend to operational reality, making sophisticated attacks accessible to a wider range of threat actors.Persistent threat…