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Srsly Risky Biz: China's Private Sector Botnets Are Worth Disrupting

DoJ seized domains of Chinese espionage botnet platforms QScan and QTRouter, run by private firm QTFY for MSS and PLA targeting.

The US Department of Justice disrupted QScan, a distributed vulnerability scanning system with nearly a decade of internet scanning data, and QTRouter, a covert communications platform routing traffic through compromised IoT devices, operated by QTFY under Chinese company Nanjing Xinjiuwei Network Technology. FBI and NSA advisories say QTFY customers include China's Ministry of State Security and the People's Liberation Army, targeting federal agencies, the US Senate, hospitals, telecoms and financial institutions. This is the third Chinese state-backed botnet disrupted since December 2023, following the KV botnet (Volt Typhoon) and Raptor Train (Flax Typhoon), and a sister network, JDY, has more than doubled since the KV disruption. Separately, the Qilin ransomware group claimed a breach of the ATF's CALEA system, briefly publishing 6.3 GB of case folders and forensic data.

Risky Business News · 12d agoThreat actor1

ATF confirms cyberattack hit system containing info on its investigation targets

Qilin ransomware group claimed breaching the ATF, exposing data on investigation targets; the agency says a standalone system was hit with no mission impact.

The Bureau of Alcohol, Tobacco, Firearms and Explosives confirmed a cyberattack on a standalone system holding information about targets of ATF investigations, designated a major incident, with no impact on case management, lab, or eForms systems. Qilin, a Russian-speaking affiliate-based ransomware group, claimed responsibility, though ATF declined to confirm involvement or the root cause. Qilin has claimed hundreds of victims across 60+ countries since 2022 and partners with Scattered Spider and Moonstone Sleet.

CyberScoop · 18d agoRansomware in the wild

ATF declares ‘major incident’ as ransomware gang claims hack

The ATF declared a major cybersecurity incident and notified Congress after a ransomware gang claimed responsibility for hacking the federal agency.

The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) formally declared a major incident involving its cybersecurity and notified Congress, according to the agency. A ransomware gang has publicly claimed responsibility for the attack. ATF is the latest in a series of US federal agencies in recent years to report a major cyber incident, though the gang's identity and the scope of data affected were not specified in initial reporting.

TechCrunch · Security · 19d agoRansomware

ATF responds to 'major' cybersecurity incident after ransomware gang's claims

The ATF is responding to a major cybersecurity incident claimed by a ransomware gang, with the US Justice Department investigating the breach.

The US Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) acknowledged a 'major' cybersecurity incident after a ransomware gang claimed responsibility for an attack. The US Justice Department is investigating the breach. Available reporting provides limited technical detail, and the scope of data theft and operational impact remains unclear.

The Register · Security · 19d agoRansomware

DOJ firearms agency says hackers breached system containing investigation targets

ATF confirmed a cyberattack on a standalone system containing investigation target data, calling it a major incident; Qilin listed ATF on its leak site.

The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) confirmed a cyberattack on a standalone computer system containing information about targets of ATF investigations, with no connection to case management, laboratory, or eForms systems. The agency designated the breach a major incident and immediately terminated connections, initiating incident response and forensics. The Qilin ransomware gang added ATF to its leak site without providing stolen data samples. Qilin was the second most active ransomware gang in July 2026 with 127 reported attacks, and has previously hit Kuala Lumpur International Airport, Asahi, and Palau's government.

The Record · 19d agoRansomware in the wild

Appears with

threat actor Qilin 3organization Bureau of Alcohol, Tobacco, Firearms and Explosives 2organization Department of Justice 2organization FBI 2threat actor Volt Typhoon 1organization ATF 1organization Google 1organization Halcyon 1organization Ministry of State Security 1organization Nanjing Xinjiuwei Network Technology 1organization NSA 1organization People's Liberation Army 1organization U.S. Department of Justice 1organization US Department of Justice 1product CALEA 1product Fastlink 1
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