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Cover image for Node2Shell: Node.js Brotli Remote Code Execution Vulnerability

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@timpeck15 hours ago

49 intel reports

Threat actors are concealing NetSupport Manager RAT payloads within structurally valid MP4 files using ISO-BMFF uuid boxes, delivered via PowerShell loaders from Cloudflare-fronted infrastructure.

Earth Sirrush (UAC-0099) utilizes evolving .NET malware, steganographic delivery, and trojanized applications to target Ukrainian government and logistics sectors for long-term espionage.

Russian state actor Star Blizzard is conducting large-scale phishing campaigns against Ukraine-aligned organizations using a novel malware delivery technique called RedFlick to deploy the CosmicPulse backdoor.

The MALFEX operator has conducted a two-year npm supply-chain campaign, deploying Overlord RAT and the movinlike stealer via multi-arm delivery packages, some of which remain active despite partial registry seizures.

Water Hydra (EvilNum) has transitioned from complex zero-day exploits to social engineering-driven campaigns using .PIF files and non-standard protocol handlers to deliver the DarkMe RAT.

LausivLoader utilizes a multi-stage infection chain involving JavaScript, PowerShell, and .NET, leveraging environment variable inheritance for inter-process data handoff and steganography to deliver final payloads.

SilverFox threat actors have upgraded their malware delivery chain from open access and whitelisting to a sophisticated cloud-based blacklist mechanism to evade detection by security researchers.

Kimsuky leverages AI agents like opencode and HeadlessChrome to mass-produce decoy documents while evolving its GitHub-based LNK execution framework with enhanced evasion and persistence.

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