Ways to stop people from uploading GIFs with injections in them?

Question

I have a PHP website where people can fill out help-tickets. It allows them to upload screenshots for their ticket. I allow gif, psd, bmp, jpg, png, tif to be uploaded. Upon

Answer 1

You can try phpMussel on any php script that accepts uploads. The file will be scanned using ClamAV signatures, plus some internal heuristic signatures that look for this type of intrusion specifically.