Honeypot password attempts

After running a small SSH-only honeypot for a week or so, I’m a bit surprised with the complexity of some of the attempted passwords. The passwords that are most frequently attempted are quite simple, as shown in the top 5 passwords for the root account:

root
[no password]
123456
synopass
!Q@W#E

These are less obvious:

dmiwoqewq4561e3wq
get_remote_ipaddr
(yes, really!)
IF1AT9v6VaYmBkMneylI
NJglWpmSQ60etyio
sheiph7cus1ieChi
SmartGen!VDI2013
VodaHoriALeBlbe45*
WSX831102edc3831rfv
zxczxczxczcxzxcxzczxc
zxczxczxczxczcxzxczxc
zxczxczxczxczxczcxzxc

Some of these seem to be used by the same botnets, as they follow similar curves in Dshield‘s observations. The three last ones (zxc...) have not yet been listed by Dshield.