Comment by dns_snek
5 hours ago
> Plenty of apps run Terminal commands in the background
Most notably agents like Claude Code and Codex? Easy to check if you ask it to run:
$ curl 'https://dv-g3b-emudhra.we-have-a-problem.com/'
Your client successfully connected to the site. That's bad!
What is the dv-g3b- part supposed to mean? I.e. why was this specific name chosen for the subdomain?
eMudhra generated multiple weak private keys and included their public counterpart in multiple intermediate certificates. You need to check that all the intermediates are rejected.
See the lists in https://bugzilla.mozilla.org/show_bug.cgi?id=2083449; I believe that "dv-g3b-" corresponds to the intermediate CA certificate listed as "EM DV TLS CA - G3B"
DV/OV/EV are "Domain Validated", "Organization Validated" and "Extended Validation" which refer to different levels of checking that the CA should done before issuing a certificate with a particular name in it.
DV is probably "Domain validated" describing the type of cert and g3b is the specific root cert the chain starts from.