hacktricks/network-services-pentesting/8333-18333-38333-18444-pentesting-bitcoin.md
Carlos Polop 8073f5697c a
2024-02-09 13:24:06 +01:00

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# 8333,18333,38333,18444 - Pentesting Bitcoin
<details>
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</details>
## Basic Information
* 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
```
### Shodan
* `port:8333 bitcoin`
* `User-Agent: /Satoshi`
## Enumeration
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
[...]
```
<details>
<summary><strong>Learn AWS hacking from zero to hero with</strong> <a href="https://training.hacktricks.xyz/courses/arte"><strong>htARTE (HackTricks AWS Red Team Expert)</strong></a><strong>!</strong></summary>
* 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**](https://github.com/sponsors/carlospolop)!
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
* **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** 🐦[**@carlospolopm**](https://twitter.com/hacktricks_live)**.**
* **Share your hacking tricks by submitting PRs to the [hacktricks repo](https://github.com/carlospolop/hacktricks) and [hacktricks-cloud repo](https://github.com/carlospolop/hacktricks-cloud)**.
</details>