# T1065 - Uncommonly Used Port
## [Description from ATT&CK](https://attack.mitre.org/wiki/Technique/T1065)
<blockquote>Adversaries may conduct C2 communications over a non-standard port to bypass proxies and firewalls that have been improperly configured.</blockquote>

## Atomic Tests

- [Atomic Test #1 - Testing usage of uncommonly used port with PowerShell](#atomic-test-1---testing-usage-of-uncommonly-used-port-with-powershell)

- [Atomic Test #2 - Testing usage of uncommonly used port](#atomic-test-2---testing-usage-of-uncommonly-used-port)


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## Atomic Test #1 - Testing usage of uncommonly used port with PowerShell
Testing uncommonly used port utilizing PowerShell

**Supported Platforms:** Windows


#### Inputs
| Name | Description | Type | Default Value | 
|------|-------------|------|---------------|
| port | Specify uncommon port number | String | 8081|
| domain | Specify target hostname | String | google.com|

#### Run it with `powershell`! 
```
test-netconnection -ComputerName #{domain} -port #{port}
```



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## Atomic Test #2 - Testing usage of uncommonly used port
Testing uncommonly used port utilizing telnet.

**Supported Platforms:** Linux, macOS


#### Inputs
| Name | Description | Type | Default Value | 
|------|-------------|------|---------------|
| port | Specify uncommon port number | String | 8081|
| domain | Specify target hostname | String | google.com|

#### Run it with `sh`! 
```
telnet #{domain} #{port}
```



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