heur:trojan.script.iframer suddenly on my blog

Hello:

Suddenty I see heur:trojan.script.iframer being alerted by Kaspersky on my blog. I do not know why this is happening because neither I shared my ftp link nor I work on windows nor even used ftp recently.

Kindly suggest how to get rid of this trojan and restore my site.

Thanks
Agnivee
http://agniveer.com