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https://github.com/sv866729/powershell

This repository provides a variety of PowerShell scripts for different use cases. Whether you need to conduct a security audit, automate repetitive tasks, or manage Office , you'll find useful scripts here. Each script is designed to be modular and easy to adapt to your needs.
https://github.com/sv866729/powershell

active-directory automation office365 powershell powershell-module powershell-script security-tools

Last synced: 2 months ago
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This repository provides a variety of PowerShell scripts for different use cases. Whether you need to conduct a security audit, automate repetitive tasks, or manage Office , you'll find useful scripts here. Each script is designed to be modular and easy to adapt to your needs.

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README 

          
# PowerShell Scripts Repository



Thanks for checking out my PowerShell repository! This repository contains a collection of PowerShell scripts that I have created over my career and thought would be beneficial to the community.



## Table of Contents

- [Introduction](#introduction)

- [Getting Started](#getting-started)

- [Scripts Overview](#scripts-overview)

- [Usage](#usage)

- [Contributing](#contributing)

- [License](#license)

- [Contact](#contact)



## Introduction



This repository provides a variety of PowerShell scripts for different use cases. Whether you need to conduct a security audit, automate repetitive tasks, or manage Office, you'll find useful scripts here. Each script is designed to be modular and easy to adapt to your needs.



## Getting Started



To get started with the scripts in this repository:



1. **Clone the Repository**: 

    ```bash

    git clone https://github.com/sv866729/Powershell-Stuff

    ```

2. **Navigate to the Directory**:

    ```bash

    cd Powershell-Stuff

    ```



3. **Open PowerShell**: Ensure you are using PowerShell with appropriate execution policies. You might need to adjust the policy to allow script execution:

    ```powershell

    Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser

    ```



## Scripts Overview



### AD Related



#### `Get-AliasAllUsers.ps1`



- **Description**: Gets all AD users and their proxy addresses.

- **Usage**: 

    ```powershell

    Get-AliasAllUsers -ou "OU=Users,DC=example,DC=com"

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



#### `Remove-AliasAllUsers.ps1`



- **Description**: Removes an alias from all users in the specified domain.

- **Usage**: 

    ```powershell

    Remove-AliasAllUsers -domain "domain.com" -ou "OU=Users,DC=example,DC=com"

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



#### `Set-NewAliasAllUsers.ps1`



- **Description**: Sets a new alias for all users based on the specified criteria.

- **Usage**: 

    ```powershell

    Set-NewAliasAllUsers -domain "domain.com" -ou "OU=Users,DC=example,DC=com"

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



### Building Blocks



#### `download-install.ps1`



- **Description**: Downloads a file from a specified URL and initiates its installation.

- **Usage**: 

    ```powershell

    download-install -url "https://example.com/file.exe"

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



#### `error-handling.ps1`



- **Description**: Executes a command and handles errors gracefully, providing customizable messages for success and failure.

- **Usage**: 

    ```powershell

    error-handling -command "YourCommandHere"

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



#### `Generate-Passphrase.ps1`



- **Description**: Generates a passphrase using a specified word list and number of words, appending a random number at the end.

- **Usage**: 

    ```powershell

    Generate-Passphrase -wordlist @("word1", "word2", "word3") -wordcount 4

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



#### `Generate-Username.ps1`



- **Description**: Generates usernames based on first and last names from a CSV file, optionally adding a random number to each username.

- **Usage**: 

    ```powershell

    Generate-Usernames -csvpath "C:\path\to\your\file.csv"

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



#### `Get-HexCode.ps1`



- **Description**: Converts a decimal value to its hexadecimal representation, formatted to an 8-character code with leading zeros.

- **Usage**: 

    ```powershell

    Get-HexCode -decimalvalue 123

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



#### `Install-ModuleIfNeeded.ps1`



- **Description**: Checks if a PowerShell module is installed and installs it if not already present.

- **Usage**: 

    ```powershell

    Install-ModuleIfNeeded -ModuleName "ModuleName"

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



### Microsoft 365 Related



#### `BlockingAllSignIns365MSOL.ps1`



- **Description**: Connects to Microsoft Online Services and blocks credentials for all users.



#### `EnableSecDefaultsGRAPH.ps1`



- **Description**: Installs the Microsoft.Graph.Identity.SignIns module, connects to Microsoft Graph, ensures Security Defaults are enabled, and handles authentication and status checks.



#### `EnforcingLegacyMfaGRAPH.ps1`



- **Description**: Connects to Microsoft Graph, retrieves all users, and enforces Multi-Factor Authentication (MFA) for each user via the Microsoft Graph API.



#### `Remove-InboxRulesByNameEXCH.ps1`



- **Description**: Connects to Exchange Online, retrieves all user mailboxes, and removes any inbox rules containing a specified string.

- **Usage**: 

    ```powershell

    Remove-InboxRulesByName -RuleNameSubstring "(Migrated)"

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



#### `Reset-M365UserPasswordsMSOL.ps1`



- **Description**: Connects to Microsoft Online Services, retrieves all users, resets passwords (excluding specified admin account), and exports the list of new passwords to a CSV file.

- **Usage**: 

    ```powershell

    Reset-UserPasswords -AdminAccount "admin@example.com" -FilePath "C:\Path\To\Save\passwordlist.csv"

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



#### `Reset-MFAForAllUsersMSOL.ps1`



- **Description**: Connects to Microsoft Online Services and resets Multi-Factor Authentication (MFA) options for all users.

- **Usage**: 

    ```powershell

    Reset-MFAForAllUsers

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



#### `Revoke-SessionsForAllUsersGRAPH.ps1`



- **Description**: Connects to Microsoft Graph and revokes sign-in sessions for all users.

- **Usage**: 

    ```powershell

    Revoke-SessionsForAllUsers

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



### Windows Security Related



#### `Disable-WeakCiphers.ps1`



- **Description**: Disables a list of weak cipher suites on a Windows machine, handling errors and providing feedback.

- **Usage**: 

    ```powershell

    Disable-WeakCiphers

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



#### `Get-EventMetadata.ps1`



- **Description**: Retrieves detailed metadata for a specific event from the Windows Event Log and returns it as a `PSCustomObject`.

- **Usage**: 

    ```powershell

    Get-EventMetadata -EventId 4672 -LogName "Security"

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



#### `Get-PortProcess.ps1`



- **Description**: Retrieves detailed information about the process listening on a specified TCP port, including process, parent process, executable file properties, and digital signature details.

- **Usage**: 

    ```powershell

    Get-PortProcess -Port 80

    ```

- **Dependencies**: Run the script to load the function into a session.

- **Notes**: This script does not execute by default and is only a function.



## Usage



Open PowerShell and navigate to the script's location. Execute the script with the required parameters using the details listed in the [Scripts Overview](#scripts-overview) section and the header of the script.



## Contributing



Help Wanted! Feel free to contribute by following these steps:



1. **Fork the Repository**: Click the [Fork](https://github.com/sv866729/Powershell-Stuff/fork) button on GitHub to create your own copy.

2. **Create a Branch**: 

    ```bash

    git checkout -b feature/your-feature

    ```

3. **Make Changes**: Edit or add scripts as needed.

4. **Commit Changes**:

    ```bash

    git add .

    git commit -m "Add a descriptive message about your changes"

    ```

5. **Push to the Branch**:

    ```bash

    git push origin feature/your-feature

    ```

6. **Create a Pull Request**: Go to the repository on GitHub and [create a pull request](https://github.com/sv866729/Powershell-Stuff/compare) with a clear description of your changes.



## License



This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.



## Contact



For any questions or support, please reach out to:



- **Author**: [Samuel Valdez](https://www.linkedin.com/in/samuel-v-656034279/)

- **GitHub**: [Sv866729](https://github.com/sv866729/)