ctblocker

aka Critroni <br/>CTB‑Locker emerged in mid‑2014, introducing a new era of ransomware by leveraging elliptic curve cryptography (ECC), Tor-based C&C communication, and Bitcoin payments—earning its name from “Curve-Tor-Bitcoin Locker.” It was packaged and sold as a ransomware kit for approximately $1,500–$3,000, allowing affiliates to deploy customized campaigns. The malware encrypts user data (including network and removable drives), changes desktop wallpapers, and appends file exten