This is actually [indirectly] courtesy of the US Government’s NSA, from a few years ago. They actually created the code that exploits Microsoft Servers that face the internet directly.
“It’s been almost a week since the City of Atlanta was hit by a ransomware attack, which encrypted city data and led to the shutdown of some services.
Mayor Keisha Lance Bottoms said in a press conference Monday that the city’s government is working on recovering the network after ransom notes appeared on computer displays on Thursday afternoon. The city has hired local cybersecurity firm SecureWorks to assess the situation.
Reports say the notorious SamSam ransomware was used in the Atlanta attack, which exploits a deserialization vulnerability in Java-based servers. Details of the attack remain largely unknown, but an early investigation may have identified who is behind the attack, said SecureWorks chief executive Michael Cote. Almost a million dollars has been reaped from other businesses that were infected and paid the ransom. It’s not known if Atlanta will pay the ransom.”