updated core to 7.58 (right after the site was hacked)

sites/all/modules/contrib/fields/prepopulate/prepopulate.install

@@ -0,0 +1,12 @@
+<?php
+
+/**
+ * Implementation of hook_install().
+ */
+function prepopulate_install() {
+  $ret = array();
+  // Ensure that prepopulate sinks to the bottom during hook calls
+  // there should be a UI for this at some point.
+  $ret[] = db_query("UPDATE {system} SET weight = 10 WHERE name = 'prepopulate'");
+  return $ret;
+}