GPUGATE MALWARE: MALICIOUS GITHUB DESKTOP IMPLANTS USE HARDWARE-SPECIFIC DECRYPTION, ABUSE GOOGLE ADS TO TARGET WESTERN EUROPE

Summary from the TLDR InfoSec newsletter

Russian-speaking threat actors deployed the "GPUGate" campaign using a sophisticated multi-stage attack combining Google Ads malvertising, GitHub commit manipulation, and hardware-specific GPU-gated decryption to target Western European IT professionals with fake GitHub Desktop installers. The attackers leveraged Google's paid search results, modified legitimate GitHub repository commits to include malicious download links, and created 128MB installers with OpenCL-based decryption that only executes on systems with real GPUs (device names >10 characters), effectively bypassing sandbox analysis. The campaign demonstrates advanced evasion tactics, including UAC bypass, Windows Defender exclusions, persistence through scheduled tasks, and modular payload delivery, with the ultimate goal of credential theft, lateral movement, and potential ransomware deployment targeting high-value IT sector victims.