Bash Script Execution Guide

Introduction

This guide provides instructions for running a Bash script that generates random IP addresses (both IPv4 and IPv6), User-Agent strings, and sends HTTP requests to a specified target URL using curl. The script runs in an infinite loop, sending a request every 2 seconds.

Estimated Reading Time: 10 minutes

Requirements

• A device with Termux installed (preferably on Android).
• Basic knowledge of Bash scripting.
• Active internet connection.

Script Explanation

This script performs the following tasks:

1. Generates a random IPv4 or IPv6 address.
2. Generates a random User-Agent string from a predefined list.
3. Sends an HTTP request to the target URL using curl with the generated IP and User-Agent.
4. Repeats the process every 2 seconds indefinitely.

#!/bin/bash

# Function to generate a random IPv4 address
generate_random_ipv4() {
    echo "$((RANDOM % 256)).$((RANDOM % 256)).$((RANDOM % 256)).$((RANDOM % 256))"
    # Explanation: This function generates four random numbers between 0 and 255,
    # concatenates them with dots to form an IPv4 address.
}

# Function to generate a random IPv6 address
generate_random_ipv6() {
    echo "$(printf '%x:%x:%x:%x:%x:%x:%x:%x' $(($RANDOM % 0xffff)) $(($RANDOM % 0xffff)) $(($RANDOM % 0xffff)) $(($RANDOM % 0xffff)) $(($RANDOM % 0xffff)) $(($RANDOM % 0xffff)) $(($RANDOM % 0xffff)) $(($RANDOM % 0xffff)))"
    # Explanation: This function generates eight random hexadecimal numbers (each up to 4 digits),
    # and concatenates them with colons to form an IPv6 address.
}

# Function to generate a random User-Agent string
generate_random_user_agent() {
    local user_agents=(
        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36"
        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Edge/91.0.864.48 Safari/537.36"
        "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36"
        "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Firefox/90.0"
        "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0"
    )
    echo "${user_agents[$RANDOM % ${#user_agents[@]}]}"
    # Explanation: This function randomly selects a User-Agent string from a predefined list.
}

# Target domain
target_url="https://www.miralishahidi.ir/"

while true; do
    # Randomly choose IPv4 or IPv6
    ip_version=$(( RANDOM % 2 ))

    if [ "$ip_version" -eq 0 ]; then
        ip_address=$(generate_random_ipv4)
    else
        ip_address=$(generate_random_ipv6)
    fi

    # Generate a random User-Agent
    user_agent=$(generate_random_user_agent)

    # Randomly select HTTP version (1.1 or 2)
    http_version=$(( RANDOM % 2 + 1 ))
    http_version_flag="--http1.1"
    if [ "$http_version" -eq 2 ]; then
        http_version_flag="--http2"
    fi

    echo "Sending request to $target_url with IP: $ip_address, User-Agent: $user_agent, HTTP version: $http_version"

    # Send the request
    curl -s -A "$user_agent" -H "X-Forwarded-For: $ip_address" $http_version_flag "$target_url" -o /dev/null

    echo "Request sent successfully"

    # Wait for 2 seconds before sending the next request
    sleep 2
done
        

Execution Instructions

1. Open Termux on your Android device.
2. Ensure `curl` is installed. If not, install it using the command:

   pkg install curl

3. Create a new Bash script file using:

   nano random_request.sh

4. Copy the provided script into the file and save it by pressing `CTRL + X`, then `Y`, and `Enter`.
5. Make the script executable:

   chmod +x random_request.sh

6. Run the script:

   ./random_request.sh

Additional Notes

Remember to monitor the script's execution to ensure it doesn't overwhelm the target server with too many requests, which could be considered malicious behavior.