CentOS – Process with Random Name Consuming Network and CPU Resources

In a VM on a cloud provider, I'm seeing a process with weird random name. It consumes significant network and CPU resources.

Here's how the process looks like from pstree view:

systemd(1)───eyshcjdmzg(37775)─┬─{eyshcjdmzg}(37782)
                               ├─{eyshcjdmzg}(37783)
                               └─{eyshcjdmzg}(37784)

I attached to the process using strace -p PID. Here's the output I've got: https://gist.github.com/gmile/eb34d262012afeea82af1c21713b1be9.

Killing the process does not work. It is somehow (via systemd?) resurrected. Here's how it looks from systemd point of view (note the weird IP address at the bottom):

$ systemctl status 37775
● session-60.scope - Session 60 of user root
   Loaded: loaded
Transient: yes
  Drop-In: /run/systemd/system/session-60.scope.d
           └─50-After-systemd-logind\x2eservice.conf, 50-After-systemd-user-sessions\x2eservice.conf, 50-Description.conf, 50-SendSIGHUP.conf, 50-Slice.conf, 50-TasksMax.conf
   Active: active (abandoned) since Tue 2018-03-06 10:42:51 EET; 1 day 1h ago
    Tasks: 14
   Memory: 155.4M
      CPU: 18h 56min 4.266s
   CGroup: /user.slice/user-0.slice/session-60.scope
           ├─37775 cat resolv.conf
           ├─48798 cd /etc
           ├─48799 sh
           ├─48804 who
           ├─48806 ifconfig eth0
           ├─48807 netstat -an
           ├─48825 cd /etc
           ├─48828 id
           ├─48831 ps -ef
           ├─48833 grep "A"
           └─48834 whoami

Mar 06 10:42:51 k8s-master systemd[1]: Started Session 60 of user root.
Mar 06 10:43:27 k8s-master sshd[37594]: Received disconnect from 23.27.74.92 port 59964:11:
Mar 06 10:43:27 k8s-master sshd[37594]: Disconnected from 23.27.74.92 port 59964
Mar 06 10:43:27 k8s-master sshd[37594]: pam_unix(sshd:session): session closed for user root

What is going on?!