Cita:
Iniciado por ramonjosegn 
ok, como te decía será cosa de la configuración de tu computador
No. El origen no está en la configuración del navegador, sino en código que contiene la página:
Cita: What happened when Google visited this site?Of the 63 pages we tested on the site over the past 90 days, 7 page(s) resulted in malicious software being downloaded and installed without user consent. The last time Google visited this site was on 2009-08-03, and the last time suspicious content was found on this site was on 2009-08-03.Malicious software includes 13 scripting exploit(s). Successful infection resulted in an average of 1 new process(es) on the target machine.
Malicious software is hosted on 1 domain(s), including valiboten.com/.
This site was hosted on 1 network(s) including AS13287 (NIXVAL).
Y hay navegadores que advierten al usuario y otros navegadores que se comen con patatas el código peligroso.
Pequeña, pero sutil e importante diferencia.