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A new cross-platform malware botnet named 'MCCrash' is infecting Windows, Linux, and IoT devices to conduct distributed denial of service attacks on Minecraft servers.

The botnet was discovered by Microsoft's Threat Intelligence team, who report that once it infects a device, it can self-spread to other systems on the network by brute-forcing SSH credentials. 

"Our analysis of the DDoS botnet revealed functionalities specifically designed to target private Minecraft Java servers using crafted packets, most likely as a service sold on forums or darknet sites," explains the new report by Microsoft.

Currently, most of the devices infected by MCCrash are located in Russia, but there are also victims in Mexico, Italy, India, Kazakhstan, and Singapore.