Skip to main content

modbus protocol wireshark tshart pcap


 

 

 

 

 

 

 

 

 

tshark -r modbus.pcap -T fields -e modbus.regval_unit16 > new.txt

There are actually 3 ip in the destination field. If you do not mention ip.dst filter just like the above command, then response will come for all the destination ip and that will be written to new.txt file.

Assuming we are using sublime text editor. In sublime we need to remove blank lines by putting \n and replace with nothing, then we also need to remove single and more than single space by putting \s+ and replace with nothing. Now convert all the decimal values to ascii to get the string. 

 

Only taking response for 238.0.0.5

tshark -r modbus.pcap -T fields -e modbus.regval_unit16 ip.dst == 238.0.0.5 > new.txt 

or 

tshark -r modbus.pcap -T fields -e modbus.regval_unit16 -Y "ip.dst == 238.0.0.5" > new.txt

Now only response for 238.0.0.5 


Avi

  

Comments

Post a Comment

Popular posts from this blog

Installtion of SQLMutant tool

This tool is perfectly works on ubuntu 24 system. And I found it is not working properly in kali linux 24 version.   https://github.com/blackhatethicalhacking/SQLMutant/tree/main This tool need to use along with sqlmap tool. Showing this cheat sheet for kali or debian based system.  This tool actually analyze everything and give you the vulnerable url where sql injection is possible. You just need to use then sqlmap to exploit that.   Prerequisite: apt install pipx -y (for ubuntu) pip3 install uro or pipx install uro pipx ensurepath pipx completions  (not needed)  source ~/.bashrc   or restart system If go tool is not installed then run the below two commands first ( golang-go ) or follow this link to install go (https://mahimfiroj.blogspot.com/2024/12/installing-nuclei-in-kali.html) otherwise skip this step.   dpkg -l | grep packagename (Using this command you can check package is installed or not) apt install gccgo-go -y or apt install gol...
Post a Comment
Read more

Install Nessus from docker

Docker installation. Give the below commands one by one. apt install docker-cli or apt install docker.io After the installation is complete, if you are inside wsl then give this command to start docker, because inside wsl systemd (systemctl) does not work: service docker start WSL troubleshooting : If the above command " service docker start " does not work then use below command: dockerd (It may not work if any previous docker process is running. It will show you pid of that process. Use this command to kill that process " kill -9 pid " and run dockerd command again) If " docker ps -a " giving error like " Cannot connect to the Docker daemon at unix:///run/podman/podman.sock. Is the docker daemon running? " This is because you may installed podman-docker package. If you remove the package still you will get this error but you should remove the package. Then issue this command: env | grep -i docker DOCKER_HOST=unix:///run/podman/podman.sock   --...
Post a Comment
Read more

WSL - windows subsystem for linux

  1. From the start menu, type "Turn Windows features on or off". Check the box, Virtual Machine Platform and Windows Subsystem for Linux or in the command prompt simply give this command: wsl.exe --install --no-distribution Now Restart the system.  If wsl is already installed, then give this command: wsl.exe --update 2. Now from Microsoft store download kali linux and install it. Or you can give this command to see list of distributions. Then install based on your choice.  To see list of distributions: wsl.exe --list --online To install: wsl.exe --install --distribution <Distro Name> i.e.  wsl --install --distribution kali-linux 3. Now it will ask for username and password, say at the time of installing kali-linux here. Provide that.  4. Once it is installed, it has come with very minimum package installation.  Run the following commands to install all packages: sudo apt update sudo apt full-upgrade -y sudo apt install -y kali-linux-default (This re...
Post a Comment
Read more