Magento 2 : How to change admin login form logo via module base?

If you want to change the admin login form logo then follow the below steps.

1. Create file admin_login.xml on app/code/Magemonkeys/AdminLogo/view/adminhtml/layout

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="admin-login" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceBlock name="logo">
            <arguments>
                <argument name="logo_image_src" xsi:type="string">Magemonkeys_AdminLogo::images/adminlogo.png</argument>
            </arguments>
        </referenceBlock>
    </body>
</page>

2. Put adminlogo.png on app/code/Magemonkeys/AdminLogo/view/web/images

3. Output.