Archive for March 2019

Perfectly synchronized dual portscanning

The other day while reviewing my fireplot graphs, I noticed (yet) another portscan. They’re not unusual. This one took around four and a half hour to complete, and covered a lot of TCP ports on one IPv4 address. That’s not unusual either. The curved graph shown below is caused by the plot’s logarithmic Y axis, […]

Honeypot intruders’ HTTP activity

One of my Cowrie honeypots has been configured to intercept various outbound connections, redirecting them into an INetSim honeypot offering corresponding services. When intruders think they’re making an outbound HTTPS connection, they only reach the INetSim server, where their attempts are registered and logged. When someone successfully logs in to the Cowrie honeypot, be it […]

Nagios or Icinga plugin for Mikrotik software and firmware version

When upgrading the software (RouterOS) on Mikrotik devices, you should usually also make sure the firmware (RouterBoot) is upgraded to the same level. In the devices’ various management interfaces including command line, the OS will tell you that there are outstanding firmware patches if you ask it, like this: /system routerboard print routerboard: yes current-firmware: […]