8333,18333,38333,18444 - Pentesting Bitcoin
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- The port 8333 is used by Bitcoin nodes in the mainnet to communicate between them.
- The port 18333 is used Bitcoin nodes in the testnet to communicate between them.
- The port 38333 is used Bitcoin nodes in the signet to communicate between them.
- The port 18444 is used Bitcoin nodes in the regtest (local) to communicate between them.
Default port: 8333, 18333, 38333, 18444
PORT STATE SERVICE
8333/tcp open bitcoin
port:8333 bitcoinUser-Agent: /Satoshi
Bitcoin nodes will give you some information if they think that you are another valid bitcoin node. Nmap have some script to extract this information:
sudo nmap -p 8333 --script bitcoin-info --script bitcoin-getaddr 170.39.103.39
PORT STATE SERVICE
8333/tcp open bitcoin
| bitcoin-info:
| Timestamp: 2022-04-08T22:33:58
| Network: main
| Version: 0.7.0
| Node Id: 1bea074ea4f6eca3
| Lastblock: 731027
|_ User Agent: /Satoshi:0.19.1/
sudo nmap -p 8333 --script bitcoin-getaddr 170.39.103.39
PORT STATE SERVICE
8333/tcp open bitcoin
| bitcoin-getaddr:
| ip timestamp
| 2a02:c7e:486a:2b00:3d26:db39:537f:59f2:8333 2022-03-25T07:30:45
| 2600:1f1c:2d3:2403:7b7d:c11c:ca61:f6e2:8333 2022-04-08T07:16:38
| 75.128.4.27:8333 2022-04-02T08:10:45
[...]
- Do you work in a cybersecurity company? Do you want to see your company advertised in HackTricks? or do you want to have access to the latest version of the PEASS or download HackTricks in PDF? Check the SUBSCRIPTION PLANS!