The Encryptor RaaS botnet offered ransomware as a service to criminals without having to write code themselves. The low price may have affected customer service, Trend Micro’s Ed Cabrera said. The botnet was shut down by Shodan, a search engine that looks for internet-connected devices. It was also used by security researchers and law enforcement to shut down a ransomware botnet this summer. The death stroke came from Shodan security researchers found that one of the servers was left unprotected, exposed to the Internet, instead of being anonymized and hidden inside the Tor network.”]
Source: https://www.csoonline.com/article/3128738/how-shodan-helped-bring-down-a-ransomware-botnet.html