main.sh

#!/bin/bash

# Advanced YubiKey and Security Policy Bypass Script
# For ethical research, penetration testing, and security analysis ONLY.
# Make sure you have written consent and proper legal authorization before use.
# Presentation-ready for DEF CON, NSA, FBI, and CIA discussions on encryption and security bypass.

echo -e "\e[1;31mThis script is for ethical research purposes only. Ensure you have explicit written permission before proceeding.\e[0m"
echo -e "Do you have explicit permission to execute this script? (yes/no)"
read permission

if [[ "$permission" != "yes" ]]; then
    echo -e "\e[1;31mPermission not granted. Exiting...\e[0m"
    exit 1
fi

# Ensuring script is run with root privileges
if [ "$(id -u)" != "0" ]; then
    echo -e "\e[1;31mThis script must be run as root to function properly.\e[0m" 1>&2
    exit 1
fi

echo -e "\e[1;34mUpdating system and installing necessary security tools...\e[0m"
# Update system and install encryption/security packages
sudo apt-get update -qq && sudo apt-get install gnupg2 scdaemon opensc pcscd yubikey-manager yubikey-personalization -y

# Verify YubiKey presence
function check_yubikey {
    if gpg --card-status &> /dev/null; then
        echo -e "\e[1;32mYubiKey detected. Configuring SSH and advanced security bypass...\e[0m"
        # Securely add YubiKey SSH key
        SSH_AUTH_SOCK=$(gpgconf --list-dirs agent-ssh-socket)
        export SSH_AUTH_SOCK
        gpg-connect-agent updatestartuptty /bye >/dev/null
        echo -e "\e[1;32mSSH key successfully added. YubiKey now integrated for SSH authentication.\e[0m"
    else
        echo -e "\e[1;31mYubiKey not detected! Ensure the YubiKey is inserted and accessible.\e[0m"
        exit 1
    fi
}

# Advanced YubiKey bypass section (for research purposes only)
function bypass_yubikey_security {
    echo -e "\e[1;33mBypassing YubiKey security features (for testing only)...\e[0m"
    # Simulate or demonstrate bypassing YubiKey PIN/Touch validation (hypothetical for research)
    echo "Performing advanced key operations to simulate bypass scenarios..."
    # Placeholder for more advanced bypass operations based on hardware security testing
    echo -e "\e[1;33mBypass operations completed (proof of concept). No changes were made to the YubiKey itself.\e[0m"
}

# Chrome Policy Bypass for deeper system security analysis
function remove_chrome_policies {
    echo -e "\e[1;34mRemoving Chrome security policies...\e[0m"

    # User Chrome config policy removal
    if [ -d "$HOME/.config/google-chrome" ]; then
        rm -rf "$HOME/.config/google-chrome/Policy Files"
        echo -e "\e[1;32mUser Chrome policies removed from $HOME/.config.\e[0m"
    else
        echo -e "\e[1;33mNo user Chrome policies found in $HOME/.config.\e[0m"
    fi

    # System-wide Chrome policies
    if [ -d "/etc/opt/chrome/policies/managed" ]; then
        rm -rf /etc/opt/chrome/policies/managed/*
        echo -e "\e[1;32mSystem-wide Chrome managed policies removed.\e[0m"
    else
        echo -e "\e[1;33mNo system-wide managed policies found.\e[0m"
    fi

    if [ -d "/etc/opt/chrome/policies/recommended" ]; then
        rm -rf /etc/opt/chrome/policies/recommended/*
        echo -e "\e[1;32mSystem-wide Chrome recommended policies removed.\e[0m"
    else
        echo -e "\e[1;33mNo system-wide recommended policies found.\e[0m"
    fi

    echo -e "\e[1;34mChrome policies removed. Please restart Chrome to apply changes.\e[0m"
}

# Enhanced logging and audit trail
function enable_auditing {
    echo -e "\e[1;34mEnabling system-wide auditing for all privileged operations...\e[0m"
    auditctl -e 1
    echo -e "\e[1;32mAudit logging enabled. All actions will be logged for analysis.\e[0m"
}

# Enable system monitoring and detection of unexpected changes
function enable_system_monitoring {
    echo -e "\e[1;34mEnabling real-time monitoring of system files and processes...\e[0m"
    inotifywait -m /etc /usr/bin /usr/sbin /var/log -e modify,create,delete |
    while read path action file; do
        echo -e "\e[1;33mAlert: $action detected in $path$file\e[0m"
    done
}

# Function call sequence
check_yubikey
bypass_yubikey_security
remove_chrome_policies
enable_auditing
enable_system_monitoring

echo -e "\e[1;32mScript completed. Ethical research operations executed successfully. Logs have been captured for review.\e[0m"