hamids54 - 5:42 pm on Mar 1, 2012 (gmt 0)
Thanks for your replies.
it seems I posted in wrong section.I was looking for security section.
My server is linux.server manager scanned and found 12 infected files with trojan virus.they deleted them.
I think I have to contact programmer of my websites to
find holes and fix them.but unfortunately I have disconnected with him from 4 years ago.
97.55 % of my users are on my forum that is VB .I asked vb about this issue they said :
As far as I know there are no known injection vulnerabilities within VB 3.8.x series. If your server was compromised by VB you will need to open a support ticket accordingly. Most likely however this is a server issue and you Will need to contact your hosting provider for assistance