Threat Advisories:

Echoes Over UDP: MuddyWater’s Covert Backdoor Strikes Microsoft December 2025 Patch Tuesday Roundup China-Linked Operators Breach Japanese Shipping Networks ShadyPanda’s Seven-Year Operation Built a Browser Extension Spy Empire React2Shell Flaw in React Server Components Under Active Attack ValleyRAT’s Stealthy Job-Lure Campaign Arkanix Stealer’s Fast-Evolving Design Driving Widespread Compromise Water Saci Campaign: Multi-Stage Malware Spreading via WhatsApp Web The Admin Shortcut: King Addons Flaw Under Fire Serpents in Disguise: MuddyWater’s Hidden ToolsetExposed Operation Hanoi Thief: When Fake CVs Become Cyber Weapons CVE-2025-61757: Oracle Identity Manager Pre-Auth RCE Under Active Attack ShadowPad Gatecrashes the Enterprise by Hijacking WSUS Vulnerability Shai-Hulud 2.0 Fuels Global NPM Supply-Chain Compromise StealC V2 Spreads via Malicious Blender Files The Windows Update Deception: How ClickFix Lures Unleash Stealthy Stealers Cl0p Ransomware Surge 2025: Operational Patterns and Key Mitigations ShadowRay Strikes Back: Inside the Multi-Purpose Ray Cluster Takeover November 2025 Linux Patch Roundup CVE-2025-11001 Turns a Simple Unzip into a System-Level Ambush

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Winter Vivern with Pro-Russian Objectives Targets Government

Threat Level – Red | Vulnerability Report

The Winter Vivern Advanced Persistent Threat (APT) is a relatively underreported group that operates with pro-Russian objectives and targets government agencies.

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