Google announced a new feature "Download Warning" to protect users against malicious executables downloads. The new feature will be integrated with Google Chrome and will display a warning if a user attempts to download a suspected malicious Windows executable file.
"We're starting with a small-scale experimental phase for a subset of our users who subscribe to the Chrome development release channel, and we hope to make this feature available to all users in the next stable release of Google Chrome. We hope that the feature will improve our users' online experience and help make the Internet a safer place," Google noted.
For webmasters, you can continue to use the same interface provided by Google Webmaster Tools to learn about malware issues with your sites. These tools include binaries that have been identified by this new feature, and the same review process will apply.