$1\mathrm{.}27.$ Users at your organization are complaining about slow systems. Examining several of them, you see that CPU utilization is extremely high and a process called $$btmine$$ is running on each of the affected systems. You also notice each of the affected systems is communicating with an IP address outside your country on UDP port $43232.$ If you disconnect the network connections on the affected systems, the CPU utilization drops significantly. Based on what you$$ve observed, you suspect these systems are infected with what type of malware?A$.$ Rainbow tablesB. Crypto$-$malwareC. DictionaryD. Hybrid attack