Skip to main content

tshark icmp data and field extraction

 tshark -r .pcapng -Y 'icmp && data.data' -T fields -e data.data > icmp_data

 As each icmp echo and reply request are same so if you put filter only icmp then duplicate data will be taken. 

So run the below command. type 8 for request and type 0 for reply

 tshark -r .pcapng -Y 'icmp.type = = 8 && data.data' -T fields -e data.data > icmp_data

 Now decode the hex using cyber chef. 


We can see that PK file signature which is an indication of zip file signature. But PK appears three times. It supposed to be appeared only 1 time.

 

So grab the first line.

Remove 1st 16 characters (before the 1st PK). Keep then 32 characters. Then again remove last 48 characters because from here another PK starts (in this 48 characters there are two PK). 

After removing, Now we have PK........r..Re. only 32 characters left. we need to keep this only.

we need to do this for all the hex code. copy all the hex code in sublime.

Find: \w{16}(\w{32})\w{48}

Replace: $1


Breakdown:


\w{16} --> we dont want 1st 16 characters


(\w{32}) --> we do want middle 32 characters


\w{48}--> we dont want last 48 characters

$1 --> means keep only the middle 32 characters and remove 1st 16 and last 48 characters. 


Now take all the hex code again to cyber chef. decode it and save it as data.zip

Then unzip that to proceed further.



Comments

Post a Comment

Popular posts from this blog

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

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

Installing nuclei and go tool in kali

 First you need to install go: https://go.dev/doc/install You need to download this go tool go1.23.4.linux-amd64.tar.gz by clicking the Download button.  Say you are root and download the tool in your Downloads directory. Now run the below command: tar -C /usr/local -xzf go1.23.4.linux-amd64.tar.gz (if this cmd fails then you need to move this tool to /usr/local folder then run this cmd tar -xzf  go1.23.4.linux-amd64.tar.gz) Now add /usr/local/go/bin to the PATH environment variable. You can do this by adding the following line to your $HOME/.profile or /etc/profile (for a system-wide installation): export PATH=$PATH:/usr/local/go/bin Now use the following command for immediate effect. Preventing you from log off then log back in: source $HOME/.profile go version (to check it is installed successfully) Install nuclei: go install -v github.com/projectdiscovery/nuclei/v3/cmd/nuclei@latest or apt install nuclei nuclei -update-templates nuclei -u https://www.domain....
Post a Comment
Read more