Alert when file types uploaded to server?

[TimNiceButDim]

Is there an easy way to record and be given an alert by email when certain file types are uploaded to my server?

Recently i have had my server hacked and php files were uploaded without my knowledge. The files were on the server for a long time before i spotted them.

I have patched the security hole that allowed the files to be uploaded but since i have so many files on my server - it is very difficult to know in future if this happens again.

I was hoping on an alert by email by anything such as a .php file was uploaded - that way if i have not uploaded this myself i will know immediately that there is a problem.

Perhaps there is a way to set this in apache or a pre-coded script is available somewhere online?

If not - would you think this is a large project to code from scratch?


Any help appreciated.

[galen]

How are the files being uploaded?

[TimNiceButDim]

I does not matter - what i am looking for is an email alert whenever certain file types are uploaded to the server.

If they uploaded through FTP, a script or any other means.

If that is not possible - looking for an alert for as many of the possible ways to get something onto the server.