"It has recently come to our attention that your site has been listed in Google’s directory for infected sites or sites distributing malware. In order to prevent any further negative effects to your website, we will be beginning cleaning efforts to rid your account of malicious files as early as today. These measures should have no adverse effect on your account and in fact, should get your site back to normal as quickly as possible.
We will be examining files in your account and removing those that pose a threat to the security of your site. We recommend that you also personally examine your files and clean out suspicious-looking files as well. If necessary, we are ready and willing to assist you in this process if our proposed plan does not entirely eliminate your problem. We will also be trying to comb through your databases (should you have any) for malicious files and remove or quarantine where needed.
We hope that these efforts will help keep you off of Google’s infected sites directory, keep your website up and running and also help keep you happy with our service."