May 24 03:23:13 linux sshd[16990]: Did not receive identification string from ::ffff:220.165.4.114
May 24 03:27:31 linux sshd[16991]: Illegal user staff from ::ffff:220.165.4.114
May 24 03:27:34 linux sshd[16993]: Illegal user sales from ::ffff:220.165.4.114
May 24 03:27:40 linux sshd[16995]: Illegal user recruit from ::ffff:220.165.4.114
May 24 03:27:43 linux sshd[16997]: Illegal user alias from ::ffff:220.165.4.114
May 24 03:27:51 linux sshd[16999]: Illegal user office from ::ffff:220.165.4.114
May 24 03:27:57 linux sshd[17001]: Illegal user samba from ::ffff:220.165.4.114
May 24 03:28:04 linux sshd[17003]: Illegal user tomcat from ::ffff:220.165.4.114
May 24 03:28:08 linux sshd[17005]: Illegal user webadmin from ::ffff:220.165.4.114
May 24 03:28:12 linux sshd[17007]: Illegal user spam from ::ffff:220.165.4.114
May 24 03:28:15 linux sshd[17009]: Bad protocol version identification '\377\373\037\377\373 \377\373\030\377\373'\377\375\\
001\377\373\003\377\375\003' from ::ffff:67.180.142.9
May 24 03:28:22 linux sshd[17010]: Illegal user virus from ::ffff:220.165.4.114
May 24 03:28:30 linux sshd[17012]: Illegal user cyrus from ::ffff:220.165.4.114
May 24 03:28:37 linux sshd[17014]: Illegal user oracle from ::ffff:220.165.4.114
May 24 03:28:42 linux sshd[17016]: Illegal user michael from ::ffff:220.165.4.114