[ALUG] Searching a web host for possible exploits

In the past I've used a little script here: http://forum.joomla.org/viewtopic.php?t=92678 .. to scan my virtual hosts for any exploits that might have been uploaded (eg any PHP Shells, etc). It's quite a simple but effective script (just searching for keywords and emailing the offending section of code to me to investigate) but it isn't maintained and there's probably better tools out there. My question is: what tools do other people use/recommend? -- Mark Rogers // More Solutions Ltd (Peterborough Office) // 0844 251 1450 Registered in England (0456 0902) @ 13 Clarke Rd, Milton Keynes, MK1 1LG