I just happened to be looking through the Logs of a couple Mikrotiks
that I didn't have Winbox Firewalled off From the outside world. Someone
from the outside world logged into winbox today. I had what I 'thought'
were strong passwords on them. The only active service on the router is
the Winbox Service.
The only changes that were made was they enabled the 'socks' server, and
added input firewall rule for the socks port. They were in and out of
the router in a matter of seconds, so it looks like it was scripted
somehow.
I'm going through now and changing passwords and verifying all routers
are locked from the outside. On the routers that I've found this on,
all the logins were sourced from this same IP Address. So far the
affected routers I've found were running versions 6.39-6.41.3
Might be a good time to check your logs and access controls.
jul/15 02:29:14 system,info,account user admin logged in from
194.40.240.254 via winbox
jul/15 02:29:17 system,info,account user admin logged in from
194.40.240.254 via telnet
jul/15 02:29:18 system,info socks config changed by admin
jul/15 02:29:18 system,info filter rule added by admin
jul/15 02:29:19 system,info,account user admin logged out from
194.40.240.254 via winbox
jul/15 02:29:19 system,info,account user admin logged out from
194.40.240.254 via telnet
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