WordPress hacked

Hello,

I just got my WP hacked again and since my webhost support could’t help and I did not find useful information at Google I’m here to ask for a help.

Today I got a code injected in one of my posts again.

The regular post should looks like that:
Li um artigo do Seth Godin que fala sobre as forças da mediocridade. Quanto mais você tenta mudar o status quo, mais resistência existe. Vale a pena a leitura.

Instead I got this peice of code at it:
Li um artigo do Seth Godin que fala< noscript >Le but de jeu poker gratuites.</ noscript > sobre as forças da mediocridade. Quanto mais você tenta mudar o status quo, mais resistência existe. Vale a pena a leitura.

I’m very concerned about it and if someone already had this issue I would know how to fix it.

I have the latest WP versinn and my site is hosted at dreamhost. And my site address is http://www.primeiromilhao.com

Any thoughts?