--- /dev/null
+<?php
+
+namespace Drupal\system\Plugin\Block;
+
+use Drupal\Core\Block\BlockBase;
+
+/**
+ * Provides a 'Powered by Drupal' block.
+ *
+ * @Block(
+ * id = "system_powered_by_block",
+ * admin_label = @Translation("Powered by Drupal")
+ * )
+ */
+class SystemPoweredByBlock extends BlockBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function defaultConfiguration() {
+ return ['label_display' => FALSE];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function build() {
+ return ['#markup' => '<span>' . $this->t('Powered by <a href=":poweredby">Drupal</a>', [':poweredby' => 'https://www.drupal.org']) . '</span>'];
+ }
+
+}