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Node2Shell: Node.js Brotli Remote Code Execution Vulnerability

A high-severity out-of-bounds write vulnerability in the Node.js Brotli decoder (Node2Shell) allows remote code execution when processing malformed compressed data.

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Tim Peck@timpeck13 hours ago

18 intel reports

UNC7017 conducted ephemeral supply chain tampering against AOMEI Technology update servers to deliver CROSSROAD and SHINYROAD malware via short-burst configuration modifications.

UNC3569 is exploiting a one-click RCE vulnerability (CVE-2026-51990) in Sogou Input Method to deploy the GRAYRABBIT backdoor using a chained attack involving protocol handler injection and an outdated Chromium engine.

The Kim Sooki threat actor utilizes the Syslogk Linux rootkit to achieve persistence and concealment by hooking kernel APIs to hide processes, network connections, and files.

Gamaredon, a Russian FSB-operated group, uses a multi-stage modular framework (GammaPhish, GammaLoad, GammaWorm, GammaSteel) to maintain persistent access and exfiltrate sensitive documents from Ukrainian government and critical infrastructure.

Adversaries can weaponize the legitimate Microsoft-signed BTR.sys remediation driver to perform arbitrary file and registry deletions from Ring 0, bypassing EDR/AV protections.

Adversaries are leveraging NTFS Alternate Data Streams (ADS) to execute malware, which causes Windows to store Prefetch artifacts within secondary streams, effectively hiding execution evidence from standard forensic tools. https://attack.mitre.org/techniques/T1564/004/

A state-sponsored threat group and Gunra ransomware actors exploited vulnerabilities in South Korean financial security software like AnySign4PC to deploy SIGNBT and COPPERHEDGE backdoors via watering holes.

Russia-aligned actors Earth Dahu and SHADOW-EARTH-066 are exploiting a WinRAR path traversal vulnerability to deploy GIFTEDCROOK and espionage modules against Ukrainian organizations.

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