Site Hacked
 

My site was hacked last night. I think it was a php form i wrote myself that was hacked but for some reason the forum is getting a few problems too. Sometimes the pages are coming up blank. Only happens the odd time though. Anyone know what to do in a situation like this? My last database backup is about 5 moths old :mad: Im runnign version 3.7.4 at the moment.

Thanks