Hello there i have some security issues in my site....
Somebody is able to upload a file named a.php in my public_html folder an then executes it...
Then Thusands of mails are being sent from my mailserver
I' attaching the file...
How can i rescue myself from him?
In the folder i found this script only the owner had write and execute permissions...
Please help me i can't find a solution
Thanks a lot!