Trusted Tool Weaponized: Lotus Blossom Hijacks Notepad++ Updates

Unit 42 revealed that Lotus Blossom, a state-sponsored group, compromised Notepad++’s shared hosting to hijack update traffic and deliver targeted malicious updates between June and December 2025. The attackers used an Adversary-in-the-Middle capability to selectively serve payloads—deploying the Chrysalis backdoor via DLL side-loading or a Cobalt Strike Beacon via injected Lua…

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EU can’t be ‘naive’ about enemies shutting down critical infrastructure, warns tech official

European Commission Executive Vice President Henna Virkkunen warned that Europe can no longer be naive about adversaries’ ability to disable critical infrastructure, noting cyberattacks are often paired with physical sabotage, disinformation and economic pressure. She called for tougher rules and investment—including a revision of the EU Cybersecurity Act to phase out…

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LockBit strikes with new 5.0 version, targeting Windows, Linux and ESXI systems

Acronis TRU analyzed LockBit 5.0, a cross‑platform ransomware family (Windows, Linux, ESXi) that uses XChaCha20 and Curve25519 encryption, random per‑file extensions, and shared execution/encryption logic while applying extensive defense‑evasion techniques on Windows. The report also links LockBit infrastructure to a SmokeLoader‑associated IP and documents double‑extortion exfiltration and enterprise/virtualization targeting (including Proxmox and ESXi). #LockBit #SmokeLoader

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In Other News: Google Looks at AI Abuse, Trump Pauses China Bans, Disney’s .7M Fine

This week’s SecurityWeek roundup highlights notable developments—threat actors are increasingly using AI across attack stages while CISA, EPA and researchers flag persistent vulnerabilities in OT, water systems, and aviation supply chains. It also covers legal and policy actions, including a DoD employee indictment, Disney’s $2.75M CCPA fine, Trend Micro’s new attribution…

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Nation-State Actors Exploit Notepad++ Supply Chain

Between June and December 2025, the state-sponsored group Lotus Blossom compromised the shared hosting environment for Notepad++ updates and intercepted update traffic to serve malicious installers that delivered the Chrysalis backdoor and Cobalt Strike beacons. The campaign used DLL side-loading, Lua script injection and an adversary-in-the-middle filtering capability to selectively target…

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APT Profile – Fancy Bear – CYFIRMA

Fancy Bear (APT28) remains an active Russian state‑aligned espionage actor that quickly adopts newly disclosed vulnerabilities and uses spear‑phishing and credential harvesting to maintain long‑term access to government, defense, energy, and communications targets. The group recently weaponized a Microsoft Office vulnerability to compromise organizations in Eastern Europe and the EU, demonstrating a shift toward lightweight, high‑ROI tradecraft. #FancyBear #CVE-2026-21509

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Leaked technical documents show China rehearsing cyberattacks on neighbors’ critical infrastructure

China appears to have used a secret cyber range called Expedition Cloud to rehearse attacks on replicas of neighboring countries’ critical infrastructure, according to a cache of leaked development and training files. The materials, linked to developer files from CyberPeace and obtained via an exposed FTP server, show staged reconnaissance and…

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European Commission discloses breach that exposed staff data

The European Commission is investigating a breach after detecting traces of a cyberattack on its mobile device management platform that may have exposed some staff names and phone numbers, though no mobile devices have been found to be compromised. The incident appears linked to zero-day code-injection flaws in Ivanti Endpoint Manager Mobile (EPMM) that have also affected Dutch authorities and Finland’s Valtori, and the Commission says the system was contained and cleaned within nine hours. #IvantiEPMM #EuropeanCommission

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Singapore Launches Largest-Ever Cyber Defense Operation After UNC3886 Targets All Major Telcos

Singapore launched its largest coordinated cyber defense operation, Operation Cyber Guardian, after a highly targeted attack affected all four major telecommunications operators: M1, Singtel, StarHub, and Simba. The assault was attributed to UNC3886, which exploited a zero-day vulnerability and accessed a small number of critical systems but was contained by government…

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“JackMa” & ShadowGuard: TGR-STA-1030 Spies on 37 Nations via Linux Rootkit

Unit 42 reveals a state-aligned cyber espionage campaign by TGR-STA-1030 (also tracked as UNC6619) that infiltrated government networks across 37 countries and compromised at least 70 organizations, focusing on finance ministries, law enforcement, and critical infrastructure. The Asia-based group times operations to geopolitical events and uses sophisticated phishing (links hosted on…

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State actor targets 155 countries in ‘Shadow Campaigns’ espionage op

A state-sponsored threat actor tracked as TGR-STA-1030/UNC6619 conducted global espionage operations called “Shadow Campaigns,” compromising at least 70 government and critical infrastructure organizations across 37 countries and conducting reconnaissance against entities in 155 countries. The group used tailored phishing with Mega.nz-hosted archives, the Diaoyu loader (delivering Cobalt Strike and VShell), multiple exploit chains, and a custom eBPF Linux rootkit named ShadowGuard to evade detection and maintain persistent access. #TGR-STA-1030 #ShadowGuard

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DYNOWIPER: Destructive Malware Targeting Poland’s Energy Sector — Elastic Security Labs

On December 29, 2025, a coordinated destructive campaign using a custom wiper called DYNOWIPER targeted Poland’s energy infrastructure, impacting more than 30 renewable sites and a major CHP plant. CERT Polska attributes the attack infrastructure to clusters tracked as Static Tundra / Berserk Bear / Ghost Blizzard / Dragonfly, and Elastic Defend’s canary-file ransomware protection successfully detected and blocked DYNOWIPER activity. #DYNOWIPER #CERTPolska

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