Tracking Vidar Infrastructure with Censys

This report analyzes the Vidar infostealer: how it obtains C2 addresses (primarily via Telegram and fallback Steam accounts), the data-exfiltration workflow (DLL retrievals, screenshots, browser credentials) sent over HTTPS, and identifies C2 servers by unique TLS certificate subject/issuer DNs discoverable with Censys. It documents an observed footprint of ~22 C2 hosts concentrated in specific ASNs and links Vidar to the Scattered Spider threat actor, noting its use in data theft and extortion campaigns.