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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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.
Turla (Secret Blizzard) targets government and military entities globally using the custom STOCKSTAY and Kazuar backdoors, often leveraging hijacked infrastructure.
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.
Russia's FSB-operated Gamaredon group leverages a modular VBScript and PowerShell arsenal targeting Ukraine through advanced persistence and multi-stage loading techniques.
Gamaredon (UAC-0010) is utilizing spearphishing emails and the CVE-2025-8088 WinRAR vulnerability to deploy GammaDrop and GammaLoad malware against Ukrainian state institutions.