Another site with content-length 0....

Viruses and worms
1

See: Suspicious iframes detected:
Object: http://dpg.com.br/
SHA1: bde856e1ccb06d6d1a20c3daed5ccaded07204d2
Name: Iframe-WI.

HTTP/1.1 200 OK
Server: Microsoft-IIS/7.0
X-Powered-By: ASP.NET
Date: Sat, 10 Jan 2015 16:57:21 GMT
Content-Length: 0

Fail, error and warnings: https://asafaweb.com/Scan?Url=dpg.com.br
Site potentially harmful.
List of blacklisted external links: 1
htxp://mensagens.host.uol.com.br/aviso/aguardando_compartilhado.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<html>
 <head>
  <title>Index of /</title>
 </head>
 <body>
<h1>Index of /</h1>
<table><tr><th><img src="/icons/blank.gif" alt="[ICO]"></th><th><a href="?C=N;O=D">Name</a></th><th><a href="?C=M;O=A">Last modified</a></th><th><a href="?C=S;O=A">Size</a></th><th><a href="?C=D;O=A">Description</a></th></tr><tr><th colspan="5"><hr></th></tr>
<tr><th colspan="5"><hr></th></tr>
</table>
</body></html>

polonus