SSH version statistics in March 2013

Another interesting fact that came up with the processing of SSH banners which were captured in March 2013, is the amount of hosts using deprecated versions of SSH.

Out of 1900734 IPs, we have the following results:

SSH Version Number of Hosts
2.0 1678331
1.99 172907
1.5 21281
1.4 6
1.3 2
modified version 13
Diversity: 1.44

Modified versions included heavy alterations of the SSH banner, such as “SSH Secret” and “SSH 4.00”. Since the data are one years old, the amount of hosts using SSH version below 1.99 should be even lower; we can claim that 1.5 SSH version or worse, still exists.


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