The host at this IP address is obviously operated by cybercriminals. It is running a malware botnet controller which is being used to control infected computers (bots) around the globe using a trojan horse.
Malware botnet controller located at 20.98.113.24 on port 1604 TCP:
$ telnet 20.98.113.24 1604
Trying 20.98.113.24…
Connected to 20.98.113.24.
Escape character is ‘^]’
$ dig +short slawdor.westus2.cloudapp.azure.com
20.98.113.24
Referencing malware samples (MD5 hash):
dc1b7b4d035f0de719650421e0b3271f — AV detection: 45 / 68 (66.18%)