Mystery C2 Server
Instructions
Hints
Solution
Following the hint, I found the c2 matrix site. Looking in the detection columns, I saw a link to JARM for fingerprinting TLS servers. I cloned the repo, then I ran the file with python3, targeting the host. The JARM is:
00000000000000000041d00000041d9535d5979f591ae8e547c5e5743e5b64
I searched that in Google, got an AlienVault result almost immediately. Looks like this is DeimosC2 That's it!!
MetaCTF{DeimosC2}
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