Intel Exchange

Browse public community intelligence reports, source analysis, and threat research.

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.

avatar
Tim Peck@timpeck1 day ago

27 intel reports

PREY-0058 (UNC6671) uses help-desk vishing and AiTM phishing to steal Microsoft 365 session tokens for bulk data exfiltration from SharePoint and Exchange via residential proxies.

The suspected APT29 group (Cloaked Ursa) launched the Spring Ring campaign targeting over 150 employees with Microsoft Teams-based voice phishing to deploy RMM tools and custom PowerShell RATs.

SynkLoader is a modular Windows malware family distributed via Microsoft Teams phishing that uses a bundled Python environment and in-memory components to facilitate credential theft, tunneling, and remote access.

TWINLOOT is a sophisticated Python implant utilizing SharePoint for tasking, Teams TURN relays for SOCKS5 tunneling, and headless Edge for stealthy Microsoft Graph API transport.

The threat actor STAC4749 uses Microsoft Teams vishing to impersonate IT support, gaining remote access to deploy custom loaders, backdoors, and Chaos ransomware targeting North American organizations.

Page 2 of 3