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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@timpeck11 days ago

53 intel reports

Threat actors can abuse Windows Quality of Service (QoS) policies via PowerShell or WMI to throttle EDR agent outbound bandwidth to near zero, effectively silencing cloud-based telemetry.

Threat actors are utilizing VHDX disk images to deliver Remcos RAT through a multi-stage process involving WMI execution and reflective .NET loading to bypass security controls.

The EDRChoker tool abuses Windows Policy-Based Quality of Service (QoS) to starve security agents of bandwidth, causing them to silently time out without generating network block artifacts.

Microsoft Defender now utilizes Windows Filtering Platform (WFP) integration to monitor inbound remote RPC calls at the OpNum level to detect lateral movement, credential theft, and discovery.

China-nexus threat group UAT-8302 targets government entities in South America and southeastern Europe using a suite of shared and custom malware including NetDraft, CloudSorcerer, and VSHELL.

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