Try deactivating your plugins and switching to a default theme to see if it goes away.
See:
http://sitecheck.sucuri.net/results/www.lv-cl.com/
While it does not appear your site or the site it is redirecting visitors too is hosting malware, I would be suspect of being hosted at 3 different places over the last 90 days (complaints are made to host and they take site down for TOS violations usually):
http://safebrowsing.clients.google.com/safebrowsing/diagnostic?site=cpalead.com
http://nakedsecurity.sophos.com/2010/10/22/facebook-sues-cpalead-cto-alleged-survey-spamming-2/
It’s just a simple wordpress site hosted on a GoDaddy Delux server…. It didn’t have the problem the last couple of days, now this shows up all the time…
I suspect a hokey plugin…as WPYogi noted, deactivate all plugins…
To be sure you have, either use FTP or your File Manager to rename the whole plugins folder to plugins.old..clear browser cache and run site and test if this is gone…
If not, rename each individual theme folder to theme_folder_name.old and upload an unedited default theme. Test.
If not, perform a manual update. This is to remove all core file (not wp-content folder!) except wp-config.php. Once logged in to site, re-save permalinks to re-create .htcacess.
If not, then your DB has been compromised, which will be much more difficult to resolve.
Also, make sure to change all user passwords and your GD account password and any FTP user passwords. Do that right away.
I solved it. These types of things are always usually within the header.php, so I carefully took it out and on the server. Took less than a minutes. Here was the code I removed:
[Suspect code removed ]
Just want to amend this post and will the other that the site you are being redirected to is a malicious site per McAfee SiteAdvisor tool at:
https://www.trustedsource.org/en/feedback/url
Check the site:
//http://www.cpalead.com/java
Listed as:
– Malicious Sites
– Malicious Downloads
and High Risk
…will send a note to Sucuri…
I also note that the OP’s site still has same redirect in place at this time.
Look inside of your theme’s header.php file for any script code related to cpalead.com
I work for Sucuri and cleaned out a client’s site with this exact same popup earlier today.
This is the exact piece of code causing the issue: http://pastebin.com/Kq7fFWzz
Not saying yours will be exactly the same but should be very similar.
