http://news.netcraft.com/archives/2005/07/04/php_blogging_apps_vulnerable_to_xmlrpc_exploits.html
single quotes? whodathunkit?
i have no idea what this does, but it showed up as a result in a google search and i thought it might be relevant:
http://www.64bit-world.com/forums/impex/tools/cleaner.php
Wow, that's awesome. Listing the contents of all private messages at the end is a nice touch!