Kali Linux Tools 2

 Kali linux Tool

• Aircrack-ng:
• It is an all in one packet sniffer, Hash capturing and Analyzing tool.
• It can be used for wifi hacking,It requires a tool called wifi adapter(with monitor mode).
• Using above the we can capture the pakages and possible to crack those hashes.
• It support almost all the latest wireless interfaces.
  
• John the Ripper:
• It is a Open source password cracking tool.
• It support hundreds of hash and cipher types includes,
• groupware
• database servers
• Network traffic captures
• Encrypt private key
• File System
• Disks
• It can also be used to crack hashes for zipped or compressed files.
  
  
  
  
  
• sqlmap:
• Sqlmap is one of the best tool used to perform SQL Injection.
• Used to automates the process of exploitation of vulnerable parameter.
• It is even use the requested file to check for post parameter.
  
  
  
  
  
  
  
• Autopsy:
• It is a digital forensics tool.
• It is used to gather informations.
• It can also used as a recovery tool to recover files from external memory storages.
  
  
  
  
  
  
  
• Social Engineering Toolkit:
• The Social Enginnering toolkit is a  collection of tools used to perform Social Engineering attacks.
• It manipulate human behaviour for information gathering.
• It is used as a tool to perform phishing attack.
  
  
  
  
  
  
  

Kali Linux Tools 1

 5 tools in kali linux 

• Nmap:
• This tool is very useful for scanning network.
• It is known as Network Scanner.
• It can be automated.It is possible to write script to make it possible.
• It is very much used by penetration tester.
  
  
  
• Burp Suite:
• It is a most popular web application testing software.
• It is used to check proxy passes through.
• It is possible to make changes to the request.
  
  
  
• Wireshark:
• It is a tool used to analyze or work with data sent over a network.
• The packets that are sent via a network can be analyze with this tool.
• It has various options to check for a particular packet and more methods to make it efficient.
  
  
  
• Metasploit Framework:
• It is open source tool designed by Rapid7 technologies.
• It contains lot of exploits to exploit the vulnerabilities over a network or operating system.
• It is basically a CLI based tool but it also has a GUI pakage known as armtiage.
  
  
  
• Netcat:
• It is also a network scanning tool used to perform opertions like,
• Port Scanning
• Port listening
• Port redirection
• Network debugging
• Network deamon testing
• It is used to perform operations on TCP,UDP,..
  
  
  

Bash Scripting 10

 BASH SCRIPTING EXAMPLES:

• We have already saw some basic syntax and method to implement those syntax.
• Today lets see some basic program that uses the basic logic to solve some problems.
• Some problems are:
• Finding whether the given year is leap year or not.
• This program will accept a year as a input.
• Check whether it solve a given condition : (( year%4==0 && year%100!=0 )|| year%400==0)
  

  
• Finding whether the given number is prime or not.
• A number is prime if it is divisible by only one and itself .
• If the number is divisible by other than the two number then the given number is not prime.
  

  

  
  
  
  
• Creating a guessing game .
• This will generate a random number for every run.
• We are given three attempt to guess the number.
  

  

  
  
  
  

Note :

The above programs are uploaded in github.

It is possible to download these code from github.

I'll provide the link to github below.

https://github.com/prasad-1808/bash_scripts.git

Bash Scripting 9

 Loops in Bash

Uses of Loop:

• In programming,We need to repeat certain steps for number of times.
• We can't repeat the statement or copy paste the code.
• To do such thing loops where used.
• It is used to repeat certain steps for number of times until the condition given gets failed.
• There are three loop statement in bash:
• while loop
• until loop
• for loop

While loop :

• Syntax:
  
  
  
• The loop start execute once the condition is true,else the loop end.
• Example:

  

  
  

Until loop :

• The until loop work in the reverse principle of while loop.
• It execute the statement in the loop until the statement is false.
• Once it reaches true,the loop terminates.
• Syntax:
  
  
  
• Example:

  

  

  
  
  

For loop:

• There are various method to execute for loop.
• One is by mentioning the range of value that are to be printed using some format
• Example:
   

  

  
  
  
  
• Another method is similar to c, c++,java,...
• Example:

  

  

  
  

  
  

Bash Scripting 8

Notations to check conditions 

• The comparison of string or numeric is the main decision taken to check for certain condition.
• The comparison like equal to, not equal, less than, greater than, less than or equal, greater than or equal, etc
• These can also be represented in bash as 
• equal to             :  -eq
• not equal           :  -ne
• greater than       :  -gt
• less than            :  - lt
• greater or equal :  -ge
• less or equal      :  -le 

• These will help greatly when using loops.
• The way of using these format in conditional statement are similar to https://cybercheck123.blogspot.com/2022/05/bash-scripting-6.html
• The only change is to replace these notation instead of symbols.
• Examples :
  
  

  

  
  

  

  
  

  
  

  
  
• Here if we use -eq the output will change because this is string comparison.The Notations will help to compare arithmetics.

  
  

  

  
  

  

  
  

  
  
• Lets see with numeric examples:

  
  

  

  
  

  

  
  

  
  

  
  
• Example to check greater of three number:
  
  

  

  
  

  

  
  

  
  

  
  
  
  
  
  
  
  

Project Week 1

 Malware model using python

What is a Malware?

• Malware is a intrusive software that is used to destroy or damage the computer system or files in the computer.
• This kind of software uses some encryption keys and use those key to encrypt files in the computer.
• For retrieving those original contents ,the one who injected the malware can took advantage of us.
• Some of the common malwares are,
• Viruses
• Worms
• Trojan viruses
• Spyware
• Ransomware
• Adware
• These can be avoided by using good Anti-virus software and constant network scanning.

What is in this Project?

• This project can give a idea about how certain malware work.
• In this project there are three important files are there.
• encrypter.py
• decrypter.py
• thekey.key (This will be created once the encrypter file run.The value changes for every execution of encrypter file )
• Warnings:
• Once the encrypter file executed .The files in the particular folder get encrypted with the particular key.
• If that encryption file is run again,then the already encrypted file will be encrypted again and the previous key will be lost .So that the Original data can't be retrieved.
• The file name of this three files should not be changed.
• The encryption file should not be used on the folder with valuable information.
• This files is applicable to all file formats.
• Don't ever use this to harm anyone.Doing by mistake can also led to losing of data.
• Don't directly run this script open the script try to understand the working.Then make fun of it.
• Have complete idea and play.
• The file has been uploaded in my github account.
• The link for the github page is https://github.com/prasad-1808/Malware_using_python.git

Warning: Improper usage can let to losing of file.

How to use the link?

• Procedure to clone a git file is available here,
• Installing git file
  
• Once the file is downloaded.Move into the directory called Malware_using_python.
• Read the README file clearly.
• Go through the code and execute.
• Please don't blindly execute the code.
  

  

  

  
  

  
  

  
  

  
  

  
  
  Use Virtual Machine for better protection.

Bash Scripting 7

 Bash Scripting 

Comments:

• Comments are the normal language text that will be written inside code to give idea about the code if we take a look at it after a period of time.
• If we see a big code which we done previous after a long time.The first question arise in mind is        "Whether I have done it or With what idea i wrote🤔 , May be sometimes what language is this😅".
• But if these line don't match the syntax of a particular language or made someother meaning to code.It will completely mess up the code.
• Every language has there own way of writing comment.
• The only thing is ,the statement we write should not disturb the original code.
• It should be a piece of line ,which should be read only by the human and not by the compiler.
• In bash ,we have two ways of commenting,
• Single line comment
• This will comment only one line.
• The command format should be repeated for everyline we wrote.
• The "#" is used to make single line comment.
• For Example,
•  <# This line is a comment.>
  
  
  
• The red marked are comment.The yellow box is the general code of bash.
• Multi line comment
• This can be used to comment certain number of comment.
• If in a code we had more than one continuous comment line we can use multiline comment instead of repeating single line comment for multiple times.
• The " : ' .....Comments (can be multiline)   '
• For Example:
• <: ' 
• Comment1
• Comment2
• Comment3 '>
  

  

  
  
  
  

Bash Scripting 6

 Conditional Statement in Bash

Conditional statement :

• Conditional statement plays a vital role in programming.
• Every decision making part can be done with conditional statement.
• Conditional statement in bash is similar to python .But the coding style differ.
• Common conditional Statements are:
• if statement
• if-else statement
• if-elif-else statement
• switch cases
• These are the common conditional statement.
• Most of the popular programming language use these in the same format with slight modifications.

If else statement:

• Syntax:
  
  
  
• The if condition should be terminated with "fi" which is nothing but the reverse of "if".
• Lets see a example,
  
  

  

If-elif-else statement:

• Syntax:
  
• Example : find the largest of three number:

Case statement similar to switch statements:

• Syntax:
  
  
  
• Printing the numbers in letter format:
  
  
  
  
  
  
  
  
  
  
• In python we use break after each condition similarly here we use ";;"
• The case condition statement should end with "esac" which is the reverse of case.