<h3 id="heading-problem-statement"><strong>Problem Statement</strong></h3>
<pre><code class="lang-plaintext">Identifying the port utilized by the web shell helps improve 
firewall configurations for blocking unauthorized outbound traffic. 
What port was used by the malicious web shell?

Flag Format: BUBT{PortNo}

network_artifacts.pcapng
</code></pre>
<h3 id="heading-prerequisites"><strong>Prerequisites</strong></h3>
<ul>
<li>Wireshark (basic use of filters, following HTTP/TCP streams, viewing responses)</li>
</ul>
<h3 id="heading-solution"><strong>Solution</strong></h3>
<p>In the NS2 problem, we examined the PHP shell contents and saw an IP address and a port number.</p>
<h3 id="heading-credits"><strong>Credits</strong></h3>
<ul>
<li><p><strong>Hashnode</strong> - for the amazing platform</p>
</li>
<li><p><strong>BUBT</strong> - for the workshop</p>
</li>
</ul>


### **Problem Statement**

```plaintext
Identifying the port utilized by the web shell helps improve 
firewall configurations for blocking unauthorized outbound traffic. 
What port was used by the malicious web shell?

Flag Format: BUBT{PortNo}

network_artifacts.pcapng
```

### **Prerequisites**

* Wireshark (basic use of filters, following HTTP/TCP streams, viewing responses)
    

### **Solution**

In the NS2 problem, we examined the PHP shell contents and saw an IP address and a port number.

### **Credits**

* **Hashnode** - for the amazing platform
    
* **BUBT** - for the workshop

Solution of NS4 given the BUBT CTF Bootcamp contest

NS4 | Network Security Series

network 𖧹 75pts

Problem Statement

Prerequisites

Solution

Credits