Dr. Web is free  like beer, theres Eset, Kaspersky etc. You can download trial versions.

On Fri, May 6, 2011 at 12:01 PM, Dennis Kioko <dmbuvi@gmail.com> wrote:
probably cross site scripting (not sure, am not a security anything), or your database getting compromised. Using Linux does not prevent you from vulnerabilities affecting web technoclogies