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96 articles · page 3 of 5

Chinese APT Exploited Dell RecoverPoint Zero-Day Flaw

🔒 Researchers report a China-linked APT exploited a previously unknown vulnerability in Dell RecoverPoint for Virtual Machines (CVE-2026-22769) to achieve unauthenticated root command execution by leveraging hardcoded Apache Tomcat Manager credentials. Google’s Mandiant traced compromises to UNC6201, which deployed web shells and backdoors including BRICKSTORM and the newer GRIMBOLT. Dell released a patch (6.0.3.1 HF1) and a remediation script; customers are urged to upgrade and isolate appliances behind segmented networks.
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GTIG AI Threat Tracker: Distillation and Integration

🔐 Google’s newest GTIG AI Threat Tracker outlines rising adversarial misuse of AI, documenting how threat actors are distilling models, experimenting with agentic capabilities, and integrating AI into malware and social engineering. The report highlights activity from groups including APT31, North Korean and Iranian actors, and malware families such as HONESTCUE. It underscores growing risks from model extraction, the emergence of illicit jailbreak services like Xanthorox, and recommends that AI providers monitor API access and adopt robust defenses.
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Google Ties State-Linked Actors to Defense Sector Attacks

🔎 Google Threat Intelligence Group (GTIG) warns that state-sponsored actors from China, Iran, Russia, and North Korea are conducting sustained cyber operations against the defense industrial base (DIB). GTIG highlights four themes: targeting battlefield technologies like drones, exploiting hiring and personnel processes, leveraging edge devices for initial access, and capitalizing on manufacturing supply chain breaches. Observed tactics include bespoke malware families, abuse of secure messaging linking, careful endpoint-evasion techniques, and use of relay networks to complicate detection and attribution.
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Nation-State Actors Leverage Gemini AI in Cyber Campaigns

🔍 Google’s Threat Intelligence Group and DeepMind found that government-backed APTs increasingly use Gemini and other generative AI for reconnaissance, target profiling and sophisticated social engineering. Observed actors include Iran’s APT42 and North Korea’s UNC2970 using models to harvest email addresses and synthesize OSINT, while TEMP.Hex and APT31 applied AI for vulnerability research and automated testing. The report also details a rise in model extraction attempts, an underground jailbreak ecosystem (notably the Xanthorox toolkit), abuse of public sharing to host malicious instructions, and cases such as Honestcue leveraging Gemini APIs to generate in-memory malicious code; Google has disabled associated assets and warns of intellectual-property theft risks.
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North Korea-Linked UNC1069 Uses AI Lures on Crypto

🛡️ UNC1069, a North Korea-linked threat actor, has used AI-generated video lures and compromised Telegram accounts to target cryptocurrency firms and personnel. According to Google Mandiant, attackers staged fake Zoom meetings via Calendly invites and delivered a ClickFix-style troubleshooting vector that dropped multiple payloads on Windows and macOS. The intrusion employed at least seven malware families — including WAVESHAPER, HYPERCALL, HIDDENCALL, DEEPBREATH, CHROMEPUSH and SILENCELIFT — to harvest credentials, browser data and session tokens to facilitate financial theft.
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North Korean Hackers Use macOS Malware to Target Crypto

🔒 North Korean-linked UNC1069 ran tailored campaigns using AI-generated deepfake video and a ClickFix-style pretext to deliver macOS and Windows malware against cryptocurrency targets. During a Mandiant response to a fintech compromise, attackers used a compromised Telegram account and a spoofed Calendly/Zoom meeting to coerce the victim into executing troubleshooting commands that launched AppleScript and malicious Mach-O binaries. Mandiant identified seven distinct macOS families—WAVESHAPER, HYPERCALL, HIDDENCALL, SILENCELIFT, DEEPBREATH, SUGARLOADER, and CHROMEPUSH—deployed to steal credentials, browser and Telegram data, and to enable future social-engineering operations.
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Singapore Disrupts Chinese APT Targeting Telco Networks

🔒 Singapore’s Cyber Security Agency disclosed that Operation Cyber Guardian disrupted attacks by Chinese-linked APT UNC3886 targeting the nation’s four major telcos between summer 2025 and early 2026. The response involved over 100 cyber defenders across six agencies and identified use of a zero-day and rootkits to maintain persistent access. CSA reported no evidence of service disruption or sensitive personal data exfiltration and implemented remediation and enhanced monitoring. Telcos have been urged to continue strengthening systems and vigilance against re-entry attempts.
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State-Linked 'Shadow Campaigns' Target 155 Countries

🕵️‍♂️ Palo Alto Networks' Unit 42 reports a state-sponsored threat actor tracked as TGR-STA-1030/UNC6619 has run global-scale "Shadow Campaigns," compromising at least 70 government and critical infrastructure organizations across 37 countries and conducting reconnaissance tied to 155 countries. The actor has been active since at least January 2024 and is assessed to operate from Asia. Initial access combined tailored phishing lures hosted on Mega.nz with exploitation of known flaws in SAP Solution Manager, Microsoft Exchange, D-Link, and Windows to deploy loaders such as Diaoyu. Victim environments were instrumented with Cobalt Strike, webshells, tunneling tools, and a bespoke Linux eBPF rootkit named ShadowGuard to hide activity and evade detection.
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Asian APT Compromises 70 Government and Infrastructure

🔎 Palo Alto Networks has identified a new Asia-based cyberespionage group, tracked as TGR-STA-1030 (UNC6619), that has compromised 70 government and critical-infrastructure organizations across 37 countries over the past year. The actor employs phishing, N-day exploits, and a multifaceted toolset including a custom loader named Diaoyu, Cobalt Strike implants, multiple web shells, and a bespoke eBPF-based Linux rootkit called ShadowGuard. Researchers report the group conducts extensive scanning and targeted reconnaissance tied to regional events, operates on GMT+8 hours, and shows indicators consistent with nation-state activity.
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Shadow Campaigns: Global State-Aligned Cyber Espionage

🔎 Unit 42 details a newly tracked, state-aligned cyberespionage group labeled TGR-STA-1030 that has targeted government and critical infrastructure across 37 countries. The report documents coordinated phishing using a Diaoyu loader, exploitation of known N-day vulnerabilities, and a transition from Cobalt Strike to Go-based C2 frameworks. It also describes a bespoke Linux eBPF rootkit, ShadowGuard, and provides actionable IoCs (IPs, domains, hashes) to support defenders.
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Labyrinth Chollima Splits into Three North Korean Groups

🛡️ CrowdStrike reports that the long-running North Korean-linked operator Labyrinth Chollima has fragmented into three distinct teams: Labyrinth Chollima, Golden Chollima and Pressure Chollima. All three trace their roots to the legacy KorDLL framework but now employ separate evolved frameworks (Hoplight, Jeus, MataNet/TwoPence) and divergent toolsets. CrowdStrike assesses with high confidence that Labyrinth remains focused on espionage while Golden and Pressure have largely shifted to cryptocurrency-targeted activity, though shared code and infrastructure indicate ongoing centralized coordination.
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Russian Cyber Threats to the 2026 Winter Olympics Overview

🔐 This Unit 42 analysis outlines the evolving Russian cyber threat to the Milano Cortina 2026 Winter Olympics, framing Russia’s IOC exclusion as a geopolitical grievance that raises the risk of disruptive operations. It reviews historical GRU-linked campaigns against prior Games and projects plausible scenarios ranging from destructive OT malware to AI-driven deepfakes and V2X manipulation. The report recommends zero‑trust visibility, IoT anomaly detection, telemetry verification, and micro‑segmentation to reduce operational impact.
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Labyrinth Chollima Splits into Three Specialized Adversaries

🔍 CrowdStrike details that LABYRINTH CHOLLIMA has diverged into three distinct DPRK-linked adversaries — GOLDEN CHOLLIMA, PRESSURE CHOLLIMA, and a narrowed espionage-focused LABYRINTH CHOLLIMA. Each subgroup maintains dedicated malware families and targeting priorities: GOLDEN and PRESSURE focus on cryptocurrency and fintech thefts while core LABYRINTH targets industrial, defense, and logistics sectors. Despite operational separation, shared tools and infrastructure point to centralized coordination within the DPRK cyber ecosystem.
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Coordinated Cyberattack on Polish Energy Grid Hits 30 Sites

⚠️ A coordinated late-December cyberattack targeted distributed energy resource (DER) sites across Poland, impacting roughly 30 facilities including combined heat and power (CHP) plants and wind and solar dispatch systems. Researchers at Dragos say attackers damaged OT equipment beyond repair and wiped Windows hosts while disabling remote monitoring, though generation continued and no outages occurred. Dragos links the operation with moderate confidence to the cluster it calls Electrum, noting overlaps with Sandworm/APT44 and ties to destructive wipers used in Ukraine.
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Mustang Panda Deploys Updated COOLCLIENT for Data Theft

🚨 Kaspersky reports that China-linked Mustang Panda used an updated COOLCLIENT backdoor in 2025 to exfiltrate data from government targets across Myanmar, Mongolia, Malaysia, and Russia. The implant was deployed as a secondary backdoor alongside PlugX and LuminousMoth, delivered via encrypted loaders and abusing DLL side-loading of legitimately signed binaries. COOLCLIENT harvests keystrokes, clipboard data, files, and HTTP proxy credentials, can establish reverse tunnels, and loads in-memory plugins; recent waves also incorporated browser credential stealers and a previously unseen rootkit.
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PeckBirdy JScript C2 Framework Linked to China APTs

🔍 PeckBirdy is a previously undocumented, JScript-based command-and-control framework active since 2023 that researchers have linked to China-aligned APT activity across Asia. Trend Micro observed the framework used in multiple roles — watering-hole controller, reverse shell and C2 server — deployed via living-off-the-land binaries and browser-based social engineering. Modular implants such as HOLODONUT and MKDOOR extend capabilities with in-memory execution and attempts to evade Microsoft Defender, complicating detection and response.
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KONNI's AI-Enhanced Malware Targets Software Developers

🐞 Check Point Research is tracking an active phishing campaign by KONNI, a North Korea–linked actor that has shifted from geopolitical targets to software developers and engineering teams. The campaign specifically targets blockchain and cryptocurrency projects and uses lures crafted to resemble legitimate project documentation. Attackers deliver malicious attachments and payloads intended to compromise developer credentials and infrastructure, and the activity displays expanded geographic reach and sophisticated social-engineering techniques.
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China-Linked APT Exploits Sitecore Zero-Day in US

⚠️ Cisco Talos says a China-aligned advanced persistent threat tracked as UAT-8837 has been leveraging a critical Sitecore zero-day (CVE-2025-53690, CVSS 9.0) to gain initial access to North American critical infrastructure. The actor uses both exploit-based access and compromised credentials, then deploys open-source tools for credential harvesting, Active Directory reconnaissance, and persistent remote access. Observed artifacts include GoTokenTheft, EarthWorm, DWAgent, SharpHound, Impacket, Rubeus, and Certipy, raising supply chain and OT exposure concerns.
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UAT-8837 APT Targets North American Critical Systems

🔍 Cisco Talos is tracking UAT-8837, an assessed China-nexus APT that since 2025 has focused on obtaining initial access to high-value and critical infrastructure organizations in North America. The actor uses both n-day and zero-day exploits (including CVE-2025-53690 in SiteCore) and often deploys open-source tooling—Earthworm, SharpHound, DWAgent, Certipy, and GoTokenTheft—to harvest credentials, enumerate Active Directory, and create remote tunnels. Operators perform hands-on-keyboard reconnaissance, create backdoored accounts and remote admin access, and cycle tools when endpoint protections block their payloads. Talos provides IOCs, Snort rules, and ClamAV signatures to detect and mitigate this activity.
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UAT-7290: China-Nexus APT Targeting Telecom Edge Devices

🔍 Cisco Talos discloses UAT-7290, a China‑nexus APT active since at least 2022 that targets telecommunications infrastructure in South Asia and has recently expanded into Southeastern Europe. The actor conducts extensive reconnaissance, uses one‑day exploits and target-specific SSH brute force, and primarily deploys a Linux-centric toolset including RushDrop, DriveSwitch, SilentRaid, and Bulbature. Talos notes UAT-7290 also provisions Operational Relay Box (ORB) nodes that may support other China-nexus operators and provides ClamAV and Snort signatures for detection.
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