All news with #huntress tag

PXA Stealer Upgrades to Multi-Layer Chain Deploying PureRAT

🔒 A Vietnamese threat group has evolved its custom PXA Stealer campaign into a multi-layered delivery chain that ultimately deploys PureRAT, a feature-rich remote access trojan. Huntress analysts describe a ten-stage sequence beginning with a phishing copyright lure and proceeding through obfuscated Python loaders, layered encoding (Base84, AES, RC4, XOR), and .NET reflective loading. The chain includes AMSI and ETW patching, TLS certificate pinning, registry persistence, and hallowing techniques to evade detection. Huntress linked the activity to the Telegram handle @LoneNone and Vietnamese C2 infrastructure and remediated an intrusion before full module deployment.

Threat Actor Reveals Tradecraft After Installing Agent

🔎Huntress analysts discovered a threat actor inadvertently exposing their workflows after installing the vendor's security agent on their own machine. The agent logged three months of activity, revealing heavy use of AI text and spreadsheet generators, automation platforms like Make.com, proxy services and Telegram Bot APIs to streamline operations. Investigators linked the infrastructure to thousands of compromised identities while many attempts were blocked by existing detections.