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Category: Botnet

Kimwolf botnet’s swift rise to 2M infected devices agitates security researchers

The Kimwolf botnet, which splintered off from the record-setting Aisuru DDoS botnet in August, gained the widespread attention of security researchers when it temporarily claimed the top spot in Cloudflare’s global domain rankings in late October 2025. Within weeks it spread like a wildfire, eventually taking over more than 2 million unofficial Android TV devices,…

Kimwolf botnet leverages residential proxies to hijack 2M+ Android devices

The Kimwolf botnet has infected over 2 million Android devices, spreading mainly through residential proxy networks, researchers say. The Kimwolf botnet has compromised more than 2 million Android devices, spreading primarily via residential proxy networks, according to cybersecurity firm Synthient. Kimwolf is a newly discovered Android botnet linked to the Aisuru botnet that has infected over 1.8…

New Mirai variant ShadowV2 tests IoT exploits amid AWS disruption

ShadowV2, a new Mirai-based botnet, briefly targeted vulnerable IoT devices during October’s AWS outage, likely as a test run. During the late-October AWS disruption, FortiGuard Labs researchers observed the Mirai-based ‘ShadowV2’ malware exploiting IoT vulnerabilities across multiple countries and industries. The botnet was active only during the outage, suggesting a test run for future attacks.…

Operation Endgame disrupts Rhadamanthys information-stealing malware

International cybercrime-fighting agencies, co-ordinated by Europol, took down over 1000 servers and seized 20 domains earlier this month as part of Operation Endgame 3.0. Their target? Three major malware platforms: the infostealer known as Rhadamanthys, the VenomRAT remote access trojan, and the Elysium botnet. Read more in my article on the Hot for Security blog.

A new round of Europol’s Operation Endgame dismantled Rhadamanthys, Venom RAT, and Elysium botnet

Europol’s Operation Endgame dismantles Rhadamanthys, Venom RAT, and Elysium botnet in a global crackdown on cybercriminal infrastructures. Europol and Eurojust have launched a new phase of Operation Endgame, carried out between November 10 and 13, 2025, dismantling major malware families including Rhadamanthys Stealer, Venom RAT, and the Elysium botnet as part of a global effort…

Operation Endgame targets malware networks in global crackdown

In a sweeping international crackdown coordinated from Europol’s headquarters, law enforcement agencies from the United States and 10 other countries have disrupted three of the world’s most widely used cybercriminal malware operations. Conducted Nov. 10-13, Operation Endgame focused on neutralizing the Rhadamanthys info-stealing malware, the VenomRAT remote access trojan, and the Elysium botnet — tools…

New Danabot Windows version appears in the threat landscape after May disruption

DanaBot returns after 6 months with a new Windows variant (v669), marking its comeback after being disrupted by Operation Endgame in May. DanaBot has resurfaced with a new variant (version 669) targeting Windows systems, six months after Operation Endgame disrupted its activity in May, according to Zscaler ThreatLabz. The researchers identified a set of command…

Aisuru botnet is behind record 20Tb/sec DDoS attacks

A new Mirai-based IoT botnet, dubbed Aisuru, was used to launch multiple high-impact DDoS attacks exceeding 20Tb/sec and/or 4gpps. In October 2025, the Aisuru Mirai-based IoT botnet launched massive DDoS attacks of over 20Tb/sec, mainly targeting online gaming, cybersecurity firm Netscout reports. The botnet uses residential proxies to reflect HTTPS DDoS attacks. Its nodes are…

Researchers warn of widespread RDP attacks by 100K-node botnet

A botnet of 100K+ IPs from multiple countries is attacking U.S. RDP services in a campaign active since October 8. GreyNoise researchers uncovered a large-scale botnet that is targeting Remote Desktop Protocol (RDP) services in the United States starting on October 8. The company discovered the botnet after detecting an unusual spike in Brazilian IP…

DDoS peaks hit new highs: Cloudflare mitigated massive 7.3 Tbps assault

Cloudflare blocked 7.3M DDoS attacks in Q2 2025, down from 20.5M in Q1, while hyper-volumetric attacks surged with 6,500+ blocked, averaging 71 daily. Cloudflare mitigated 7.3M DDoS attacks in Q2 2025, down from 20.5M in Q1, 13.5M of which stemmed from an 18-day Q1 campaign. Hyper-volumetric attacks surged, with over 6,500 blocked, averaging 71 per…

Smashing Security podcast #423: Operation Endgame, deepfakes, and dead slugs

In this episode of the “Smashing Security” podcast, Graham unravels Operation Endgame – the surprisingly stylish police crackdown that is seizing botnets, mocking malware authors with anime videos, and taunting cybercriminals via Telegram. And BBC cyber correspondent Joe Tidy joins us to talk about “Ctrl-Alt-Chaos”, his new book diving into the murky world of teenage…

U.S. Authorities Seize DanaBot Malware Operation, Indict 16

U.S. authorities seized the infrastructure of the DanaBot malware and charged 16 people in an action that is part of the larger Operation Endgame, a multinational initiative launched last year to disrupt and take apart global cybercriminals operations. The post U.S. Authorities Seize DanaBot Malware Operation, Indict 16 appeared first on Security Boulevard.

NSFOCUS WAF Selected in the 2025 Gartner® Market Guide for Cloud Web Application and API Protection

Santa Clara, Calif. May 14, 2025 – Recently, Gartner released the “Market Guide for Cloud Web Application and API Protection”[1], and NSFOCUS was selected as a Representative Vendor with its innovative WAAP solution. We believe this recognition reflects the technical accumulation and practical capabilities of NSFOCUS WAF in the field of cloud native security protection. Its…

Smashing Security podcast #402: Hackers get hacked, the British Museum IT shutdown, and social media kidnaps

What happens when eager computer enthusiasts unknowingly download a trojanized hacking tool and find themselves on the wrong side of cybersecurity? A former employee’s actions led to chaos and raise urgent questions about the security of cultural treasures. And join us as we explore the alarming trend of social media influencers staging fake kidnappings. All…