A Comparison Study of SSH Port Activity - TCP 22 & 2222
Last Updated: 2019-03-09 23:28:25 UTC
by Guy Bruneau (Version: 1)
I added a while ago to my honeypot TCP 2222 usually associated with SSH traffic to compare the amount of scans targeting port 22 and 2222 over a period of 7 days. What I have noticed, only about 50% more of the traffic is going to TCP 22 the default SSH service. The activity reported for the past month to DShield has been pretty consistent for TCP 2222. I used the latest version of rockNSM released a few weeks ago with the new added dashboard to track the activity.
This graph shows port 22 over the past 7 days
This graph shows port 2222 over the past 7 days
This graph show both 22 and 2222 over the past 7days
I wrote a diary last year where I posted a list of various client types and versions. Over the past several weeks, I received 9664 SSH probe to TCP 2222. This is the breakdown of the various SSH clients used:
libssh 0.6 and later is vulnerable to CVE-2018-10933 and the most common hasshServer values posted here.
If you are interested in trying out the latest version of rockNSM 2.3, I recently updated my step-by-step guide and posted it here on the handlers server.
Guy Bruneau IPSS Inc.
My Handler Page
gbruneau at isc dot sans dot edu
Mar 11th 2019
4 years ago