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Security threats from hacker

Posted: Sat Aug 22, 2009 5:50 am
by lalkamal
We have a site on realestate. This site is built with php two years back. Recently this site was hacked by someone. Hacker put his page replacing original index page. I have deleted all the files and folder from server and reload with original files and folder. Within one day this site is hacked again. But interesting things is that that time ftp showing no files in the server, but from control panel I can see used diskspace is 98mb and also when I tries to reload again then ask conformation that I really want to change old file with new one. Now we changed the server. We are suspecting that hacker may hack this site again. How can I secure this site from hacker.

Please help me soon.

Re: Security threats from hacker

Posted: Tue Aug 25, 2009 9:39 am
by Ambush Commander
What most likely happened is that the hacker left a backdoor file on your server in order to let themselves back in. Can you do a full wipe and restore from backup? Is your application vulnerable and you need to fix that?