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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@timpeck1 day ago

9 intel reports

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.

APT42 (suspected Iran-linked) is utilizing AI-assisted phishing and the SpearSpecter campaign to deliver an evolved modular TAMECAT backdoor targeting defense and nuclear energy sectors.

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.

UAC-0226 is utilizing WinRAR path traversal (CVE-2025-8088) with NTFS Alternate Data Streams to deploy the GIFTEDCROOK stealer via a multi-stage PowerShell and reflective loading chain.

The Russia-aligned Gamaredon group significantly updated its arsenal in 2025, deploying six new PowerShell tools and leveraging legitimate cloud services and tunnels to target Ukrainian military and government institutions.

The Russia-linked Turla group is deploying STOCKSTAY, a multi-component .NET backdoor masquerading as benign utilities, to target government and military entities in Ukraine and Europe.