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Someone have install a fileserver for IRC call iroffer into your webserver! Your can find detail information about iroffer inhttp://iroffer.org/.
May be your webserver PHP isn't running in "Safe Mode", so someone can upload tools like phpshell(http://www.gimpster.com/php-shell/) into the uploads dir and execute arbitrary shell-commands or browse the filesystem on your remote webserver.
Is not XOOPS problem!
May be your webserver PHP isn't running in "Safe Mode", so someone can upload tools like phpshell(http://www.gimpster.com/php-shell/) into the uploads dir and execute arbitrary shell-commands or browse the filesystem on your remote webserver.
Is not XOOPS problem!