functions.php

<?php

/**
 * You can whitelist certain directories from the Shield malware scanner using
 * the following WordPress filter.
 *
 * All paths you provide must be relative to your ABSPATH
 * (i.e. from the directory where your wp-settings.php file resides)
 * 
 * You must always return the $paths variable at the end.
 */
add_filter(
	'icwp_shield_malware_whitelist_paths',
	function ( $paths ) {
		$paths[] = 'wp-content/my/custom/path/';
		$paths[] = 'wp-content/my/other/path/';
		return $paths;
	}
);