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Kimwolf Botnet Targeting Android TV Devices Worldwide

Jan 9, 2026 9:46:08 AM / by The Hivemind posted in Threat Bulletin, Evolving Threat, Android Malware, DDoS Attacks, Kimwolf botnet, IoT vulnerabilities, Aisuru variant

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Verticals Targeted: Consumer Electronics, Residential Networks
Regions Targeted: Brazil, India, United States, Vietnam, Saudi Arabia, Russia, Argentina, South Africa, Philippines, Mexico, Thailand, Indonesia, Morocco, Turkey, Iraq, Pakistan, China
Related Families: Aisuru

Executive Summary

Security researchers have detailed the Kimwolf botnet, a massive Android-based network exceeding 1.8 million infected devices, primarily TV boxes, enabling DDoS attacks, proxy services, and other malicious activities through exploitation of residential proxy networks and device vulnerabilities. This threat demonstrates rapid growth and resilience, leveraging advanced evasion techniques to maintain control and monetize infections.

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BRICKSTORM Targets U.S. Tech and Legal Sectors with Stealthy Espionage

Oct 3, 2025 3:29:53 PM / by The Hivemind posted in Threat Bulletin, Evolving Threat, credential theft, SonicWall VPN, Ransomware Campaign, Akira Ransomware, CVE-2024-40766, SSL VPN, multi-factor authentication

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Verticals Targeted: Legal Services, Software, Business Services, Technology
Regions Targeted: US
Related Families: BRICKSTEAL, SLAYSTYLE 

Executive Summary

The BRICKSTORM backdoor, attributed to the suspected China-nexus threat cluster UNC5221, has been actively targeting U.S. organizations in the legal, SaaS, BPO, and technology sectors since March 2025, enabling prolonged espionage with an average dwell time of 393 days. This sophisticated malware leverages zero-day exploits and stealthy techniques to maintain persistent access, evade detection, and steal sensitive data, posing significant risks to critical infrastructure.

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Hook Android Banking Trojan Evolves

Sep 2, 2025 12:52:33 PM / by The Hivemind posted in Threat Bulletin, Evolving Threat, Android Malware, ransomware overlay, fake NFC overlay, phishing overlay, Accessibility Services abuse, lockscreen bypass, GitHub malware distribution, financial sector threats, Hook banking trojan

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Verticals Targeted: Financial, Enterprises
Regions Targeted: Not specified
Related Families: Ermac, Brokewell

Executive Summary

Hook Version 3 is an advanced Android banking trojan with ransomware, phishing, and lockscreen bypass capabilities, posing significant risks to financial institutions and enterprises. Its distribution via phishing websites and GitHub amplifies its reach, necessitating robust mobile threat defenses.

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PS1Bot Malware Framework

Aug 22, 2025 1:48:23 PM / by The Hivemind posted in Threat Bulletin, Emerging Threat, Evolving Threat, PS1Bot, malware campaign, information stealer, C# malware, malvertising, cryptocurrency wallet theft, keylogger, in-memory execution, persistence module

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Verticals Targeted: Not specified
Regions Targeted: Not specified
Related Families: AHK Bot, Skitnet/Bossnet

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Gunra Ransomware

Aug 11, 2025 2:41:54 PM / by The Hivemind posted in Threat Bulletin, Emerging Threat, Evolving Threat, Data Exfiltration, Gunra Ransomware, Linux Ransomware Variant, Multi-Thread Encryption, Partial Encryption, Cross-Platform Ransomware, Conti-Inspired, Ransomware Analysis, Gunra Group, Enterprise Targeting

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Verticals Targeted: Government, Healthcare, Manufacturing, Transportation, Law and Consulting, IT, Agriculture
Regions Targeted: Brazil, Japan, Canada, Turkey, South Korea, Taiwan, United States
Related Families: Conti

Executive Summary

Gunra ransomware has debuted a Linux variant that boosts encryption speed and flexibility, signaling a shift toward broader cross-platform attacks following its initial Windows campaigns.

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Konfety Android Malware

Jul 28, 2025 3:08:29 PM / by The Hivemind posted in Threat Bulletin, Evolving Threat, Konfety malware, Android evasion techniques, ad fraud operations, secondary DEX files, runtime injection, mobile security analysis, hidden APK components, mobile threat evolution, dynamic code loading, malware obfuscation

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Verticals Targeted: Not specified
Regions Targeted: Not specified
Related Families: Campaigns abusing the CaramelAds SDK

Executive Summary

Konfety, a longstanding mobile malware, has resurfaced with enhanced evasion capabilities, including dynamic code loading and multi-layered obfuscation, to facilitate ad fraud while evading detection on Android devices. This evolution underscores the persistent challenge of concealed malicious logic in mobile applications, demanding advanced scrutiny from security teams.

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Atomic Stealer Evolves

Jul 25, 2025 2:47:25 PM / by The Hivemind posted in Threat Bulletin, Malware-As-A-Service, Evolving Threat, Spear Phishing, Cryptocurrency Theft, macOS security, Atomic macOS Stealer, AMOS malware, macOS backdoor, persistent access, Moonlock cybersecurity

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Verticals Targeted: Cryptocurrency, Freelancers, Artists
Regions Targeted: United States, France, Italy, United Kingdom, Canada, others
Related Families: None

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New MacOS.ZuRu Variant Discovered

Jul 22, 2025 3:05:50 PM / by The Hivemind posted in Threat Bulletin, Evolving Threat, Malware Analysis, Cybersecurity Threat, MacOS malware, ZuRu malware, Termius trojan, macOS security, backdoor threat, SSH client attack, Khepri C2, developer security

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Verticals Targeted: IT, software development  
Regions Targeted: None specified
Related Families: None

Executive Summary

A new variant of the macOS.ZuRu malware, first identified in 2021, was discovered, leveraging a trojanized Termius application to deploy a modified Khepri C2 beacon, targeting developers and IT professionals. This sophisticated backdoor employs advanced techniques to evade detection and establish persistent remote access.

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