I created a droplet (OpenVPN 2.8.5 from the marketplace) and after just 2 days I received a message from DigitalOcean that my droplet has been under Bruteforce attack. Surely enough the root password was changed and I had to reset it from the control panel to be able to log in again. After logging in again I see there are suspicious network activity going on to some IP addresses from Japan and other countries. I could not trace down the process ID of these network activities… they all show up as ? in the NetHogs output.
What can/should I do? and if I delete this droplet and create a new one hot to prevent the same scenario from happening again?
NetHogs version 0.8.5-2 PID USER PROGRAM DEV SENT RECEIVED 2100 root sshd: root@pts/1 eth0 0.627 0.087 KB/sec ? root 220.127.116.11:1433-18.104.22.168:50204 0.011 0.022 KB/sec ? root 22.214.171.124:3389-126.96.36.199:54203 0.011 0.022 KB/sec ? root 188.8.131.52:9201-184.108.40.206:42091 0.011 0.011 KB/sec ? root 220.127.116.11:445-18.104.22.168:62540 0.000 0.000 KB/sec ? root 22.214.171.124:13197-126.96.36.199:42052 0.000 0.000 KB/sec ? root 188.8.131.52:23-184.108.40.206:44234 0.000 0.000 KB/sec ? root 220.127.116.11:15448-18.104.22.168:44988 0.000 0.000 KB/sec ? root unknown TCP 0.000 0.000 KB/sec TOTAL 0.659 0.143 KB/sec
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