How to Prevent Uploading PERL script into /tmp Directory ??

[Ditro - BipinDas <bipindas.k@ditro.com>]

Dear  List,

I had implemented Mod Security 1.9 in a Debian 3 Server. My Apache Version is 1.3, and log says that its working fine. I had secured my /tmp /var/tmp /dev/shm directories. And umounted in /etc/fstab. But Yesterday,one attacker had upload a perl script into my /tmp directory.  He is continuously uploading scripts to that foler
Please let me know what should do prevent an intruder to uploading Perl/Sh/Chsh scripts into the /tmp directories.

Thanks in Advance.

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